(BQ) Part 1 book “Current occupational and environmental medicine” has contents: The practice of occupational medicine, international occupational and environmental health, migration and occupational health, the occupational & environmental medical history, electronic health records,…. And other contents.
Trang 3Copyright © 2014 by McGraw-Hill Education All rights reserved Except aspermitted under the United States Copyright Act of 1976, no part of this
publication may be reproduced or distributed in any form or by any means, orstored in a data base or retrieval system, without the prior written permission
McGraw-Hill Education eBooks are available at special quantity discounts touse as premiums and sales promotions or for use in corporate training
programs To contact a representative, please visit the Contact Us page atwww.mhprofessional.com
NoticeMedicine is an ever-changing science As new research and clinical
experience broaden our knowledge, changes in treatment and drug therapyare required The authors and the publisher of this work have checked withsources believed to be reliable in their efforts to provide information that
is complete and generally in accord with the standards accepted at the time
of publication However, in view of the possibility of human error or
changes in medical sciences, neither the authors nor the publisher nor anyother party who has been involved in the preparation or publication of thiswork warrants that the information contained herein is in every respectaccurate or complete, and they disclaim all responsibility for any errors oromissions or for the results obtained from use of the information contained
Trang 4in this work Readers are encouraged to confirm the information containedherein with other sources For example and in particular, readers are
advised to check the product information sheet included in the package ofeach drug they plan to administer to be certain that the information
contained in this work is accurate and that changes have not been made inthe recommended dose or in the contraindications for administration Thisrecommendation is of particular importance in connection with new or
infrequently used drugs
THE WORK IS PROVIDED “AS IS.” MCGRAW-HILL EDUCATIONAND ITS LICENSORS MAKE NO GUARANTEES OR WARRANTIES
AS TO THE ACCURACY, ADEQUACY OR COMPLETENESS OF ORRESULTS TO BE OBTAINED FROM USING THE WORK, INCLUDINGANY INFORMATION THAT CAN BE ACCESSED THROUGH THE
WORK VIA HYPERLINK OR OTHERWISE, AND EXPRESSLY
DISCLAIM ANY WARRANTY, EXPRESS OR IMPLIED, INCLUDINGBUT NOT LIMITED TO IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.McGraw-Hill Education and its licensors do not warrant or guarantee that thefunctions contained in the work will meet your requirements or that its
operation will be uninterrupted or error free Neither McGraw-Hill Educationnor its licensors shall be liable to you or anyone else for any inaccuracy, error
or omission, regardless of cause, in the work or for any damages resultingtherefrom McGraw-Hill Education has no responsibility for the content of
Trang 5any information accessed through the work Under no circumstances shallMcGraw-Hill Education and/or its licensors be liable for any indirect,
incidental, special, punitive, consequential or similar damages that resultfrom the use of or inability to use the work, even if any of them has beenadvised of the possibility of such damages This limitation of liability shallapply to any claim or cause whatsoever whether such claim or cause arises incontract, tort or otherwise
Trang 6Authors
Preface
Section I Occupational Health
1 The Practice of Occupational Medicine
Karen B Mulloy, DO, MSCH
5 Electronic Health Records
Sachin Kapoor, DO, MBA, MPH
6 Workers’ Compensation
Joseph LaDou, MS, MD
James Craner, MD, MPH
Trang 77 Disability Management & Prevention
Jordan Rinker, MD, MPH
Robert Eric Dinenberg, MD, MPH Mauro Zappaterra, MD, PhD
Glenn Pransky, MD, MOH
Section II Occupational Injuries
Trang 8Peter D Lichty, MD, MOH
15 Ergonomics & the Prevention of Occupational Injuries
David M Rempel, MD, MPH
Ira L Janowitz, MPS, PT, CPE
Section III Occupational Illnesses
Mahbub M.U Chowdhury, MBChB, FRCP
22 Upper Respiratory Tract Disorders
Trang 10Section V Program Management
35 Occupational Mental Health & Workplace Violence
Marisa Huston, MA, MFT
Robert C Larsen, MD, MPH
36 Substance Use Disorders
Marisa Huston, MA, MFT
Stephen Heidel, MD, MBA
37 CBRNE Preparedness
Marek T Greer, MD, MPH
Richard Lewis, MD, MPH
38 Occupational Safety
Peter B Rice, CSP, CIH, REHS
39 Industrial (Occupational) Hygiene
Peter B Rice, CIH, CSP, REHS
Trang 11Section VI Environmental Health
43 Principles of Environmental Health
Trang 1249 Multiple Chemical Sensitivity
Trang 13Mohana Amirtharajah, MD
Assistant Professor
Hand and Upper Extremity Surgery
Department of Orthopedic Surgery
University of California, San Francisco
amirtharajahm@orthosurg.ucsf.edu
Chapter 9
John R Balmes, MD
Professor of Medicine
University of California, San Francisco
Professor of Environmental Health Sciences
School of Public Health
Director, Northern California Center for Occupational and EnvironmentalHealth
University of California, Berkeley
Trang 14Mahbub M.U Chowdhury, MBChB, FRCP (UK)
Consultant in Occupational Dermatology
Department of Dermatology
University of Hospital of Wales
Cardiff, Wales, United Kingdom
Assistant Clinical Professor
Division of Occupational and Environmental Medicine
University of California, San Francisco
jcraner@drcraner.com
Chapters 6 & 41
Rupali Das, MD, MPH
Assistant Clinical Professor
University of California, San Francisco
Executive Medical Director
California Division of Workers’ Compensation
Trang 15Department of Industrial Relations
Sacramento, California
rdas@dir.ca.gov
Chapters 42 & 45
Alexis Descatha, MD, PhD
Associate Professor, Occupational Health
INSERM, Centre for Research in Epidemiology and Population Healthalexis.descatha@inserm.fr
Chapter 9
Michael J Dibartolomeis, PhD
Chief, Exposure Assessment Section
California Department of Public Health
Richmond, California
michael.dibartolomeis@cdph.ca.gov
Chapter 50
Robert Eric Dinenberg, MD, MPH
Chief Medical Officer, Viridian Health Management
Executive Director, Viridian Institute for Applied Health Improvementwww.viahi.org
Timur S Durrani, MD, MPH, MBA
Clinical Instructor of Medicine
Trang 16University of California, San Francisco
Associate Medical Director
Battelle Memorial Institute
Columbus, Ohio
marektgreer@sbcglobal.net
Chapter 37
Robert J Harrison, MD, MPH
Clinical Professor of Medicine
Division of Occupational and Environmental MedicineUniversity of California, San Francisco
robert.harrison@ucsf.edu
Chapters 1 , 20 , 25 , 31 , 32 , & 49
Stephen Heidel, MD, MBA
Clinical Professor of Psychiatry
Trang 17School of Medicine
University of California, San Diego
stephen.heidel@sbcglobal.net
Chapter 36
German T Hernandez, MD, FASN
Assistant Professor of Medicine
Department of Internal Medicine
Marisa Huston, MA, MFT
Mental Health Coordination Services
Dean of Students Office
University of California, Santa Barbara
marisa.huston@sa.ucsb.edu
Chapters 35 & 36
Ira L Janowitz, MPS, PT, CPE
Senior Ergonomics Consultant
Berkeley Ergonomics Program
University of California, San Francisco
janowitz@comcast.net
Chapter 15
Sarah Janssen, MD, PhD, MPH
Assistant Clinical Professor
University of California, San Francisco
sarah.janssen@ucsf.edu
Chapters 28 & 29
Trang 18Sachin Kapoor, DO, MBA, MPH
Medical Director Employee Health
The Permanente Medical Group
Walnut Creek, California
Adjunct Associate Professor
Colorado School of Public Health
Associate Professor of Medicine
Division of Pulmonary and Critical Care MedicineStanford University School of Medicine
Stanford, California
kuschner@stanford.edu
Chapter 33
Joseph LaDou, MS, MD
Clinical Professor Emeritus
Division of Occupational and Environmental Medicine
Trang 19University of California, San Francisco
Peter D Lichty, MD, MOH
Health Services Department
Lawrence Berkeley National Laboratory
Trang 20University of California, San Francisco
Assistant Deputy Director for Scientific Affairs
Office of Environmental Health Hazard AssessmentSacramento, California
melanie.marty@oehha.ca.gov
Chapter 45
Wolf Mehling, MD
Associate Professor of Medicine
University of California, San Francisco
Trang 21Chapter 16
Michael A O’Malley, MD, MPH
Medical Director
Occupational Health Service
University of California, Davis
maomalley@ucdavis.edu
Chapter 34
Glenn Pransky, MD, MOH
Associate Professor
Tufts University School of Medicine
Director, Center for Disability Research
Peter B Rice, CIH, CSP, REHS
Manager of Safety, Health, and Environmental ProgramsAhtna Netiye’, Inc
Sacramento, California
price@ahtna.net
Chapter 38 & 39
Jordan Rinker, MD, MPH
Trang 22Associate Clinical Professor
Division of Occupational and Environmental MedicineSan Francisco, California
Assistant Clinical Professor
Division of Occupational and Environmental MedicineUniversity of California, San Francisco
rachel.roisman@cdph.ca.gov
rroisman@gmail.com
Chapter 32
Hope S Rugo, MD
Clinical Professor of Medicine
Director, Breast Oncology Clinical Trials ProgramUCSF Comprehensive Cancer Center
University of California, San Francisco
hrugo@medicine.ucsf.edu
Chapters 18 & 19
Kazeem B Salako, MBBS, MRCP
Welsh Institute of Dermatology
University Hospital of Wales
Cardiff, Wales, United Kingdom
kazeem.salako@wales.nhs.uk
Trang 23Chapter 21
Marc B Schenker, MD, MPH
Professor and Director
Center for Occupational and Environmental Health
Co-director, UC Global Health Institute, Center of Expertise on Migrationand Health
Department of Public Health Sciences
University of California, Davis
mbschenker@ucdavis.edu
Chapter 3 & Appendix A
Megan R Schwarzman, MD, MPH
Environmental Health Scientist
Center for Occupational and Environmental Health
Associate Director, Berkeley Center for Green Chemistry
University of California, Berkeley
mschwarzman@berkeley.edu
Chapter 44
Dennis J Shusterman, MD, MPH
Clinical Professor of Medicine
Division of Occupational and Environmental Medicine
University of California, San Francisco
dennis.shusterman@cdph.ca.gov
Chapter 22
Yuen T So, MD, PhD
Professor, Neurology and Neurological Sciences
Department of Neurology and Neurosciences
Stanford University Medical Center
Stanford, California
yuen.so@stanford.edu
Trang 24Chapter 27
Gina M Solomon, MD, MPH
Deputy Secretary for Science and Health
Office of the Secretary
California Environmental Protection Agency
Sacramento, California
gsolomon@calepa.ca.gov
Chapter 43
Craig Steinmaus, MD, MPH
Public Health Medical Officer III
Pesticide and Environmental Toxicology BranchOffice of Environmental Health Hazard AssessmentSacramento, California
craig.steinmaus@oehha.ca.gov
Chapter 48
Eileen Storey, MD, MPH
Chief, Surveillance Branch
Division of Respiratory Disease Studies
National Institute for Occupational Safety and HealthMorgantown, West Virginia
estorey@cdc.gov
Chapter 40
Marilyn C Underwood, PhD
Director of Environmental Health
Contra Costa County
Martinez, California
marilyn.underwood@hsd.cccounty.us
Chapter 45
Michael P Wilson, PhD, MPH
Trang 25Director, Labor Occupational Health ProgramCenter for Occupational and Environmental HealthSchool of Public Health
Physical Medicine and Rehabilitation
Los Angeles, California
maurozappaterra@gmail.com
Chapter 7
Trang 26The Fifth Edition of Current Occupational & Environmental Medicine
continues to serve as a concise yet comprehensive resource for health careprofessionals in all specialties who diagnose and treat occupational andenvironmental injuries and illnesses
COVERAGE & APPROACH TO THE SUBJECT
The book provides a complete guide to common occupational andenvironmental injuries and illnesses, their diagnosis and treatment, andpreventive measures in the workplace and community Our aim is to helphealth care professionals understand the complexities of occupational andenvironmental health issues and provide useful clinical information oncommon illnesses and injuries The book contains many new chapters,expanding the coverage of occupational and environmental medicine wellbeyond that of the earlier editions To enhance the book’s usefulness as aclinical resource, it is published in the Lange® Current series The seriesconsists of practical, concise, and timely books in core specialties and keysubspecialties that focus on essential diagnostic and treatment information
SPECIAL AREAS OF EMPHASIS
• Detailed coverage on the diagnosis and treatment of a broad spectrum ofoccupational and environmental injuries and illnesses
• Chapters on how to conduct an occupational and environmental history,perform a physical examination, and prevent further injury
• The important role that health care providers can play in preventing
disability
Trang 27• Practical information on the toxic properties and clinical manifestations ofcommon industrial materials.
• Techniques to prevent workplace-related injuries and illnesses through theapplication of ergonomic principle
ORGANIZATION & HIGHLIGHTS OF EACH SECTION
Section I (Chapters 1 through 7) define the practice of occupational andenvironmental medicine and introduce the health care provider to thediagnosis of occupational injuries and illnesses These chapters offerguidance for identifying workplace and community exposures to toxicmaterials—putting this information to immediate clinical use and applying ittoward better health and safety practices in the workplace This sectionpresents a comprehensive discussion of disability prevention andmanagement, and considers the important issues in the international practice
of occupational and environmental medicine
Section II (Chapters 8 through 15) concisely discusses commonoccupational injuries and their treatments Noise-induced hearing loss and theimpact of other physical hazards, such as heat, cold, and radiation areexamined This section also discusses how ergonomic principles can beinstituted in the workplace to prevent further work loss associated with injuryand illness The chapter on management of chronic pain is an important newaddition to the book
Section III (Chapters 16 through 29) is a comprehensive discussion ofclinical toxicology arranged by organ system, with special emphasis on theenvironmental as well as workplace origins of toxic exposure It thoroughlyreviews commonly recognized environmental and occupational illnesses andhighlights many clinical problems not often thought to be work related
Section IV (Chapters 30 through 34) presents the most common toxicmaterials encountered in the workplace and community with diagnostic andtreatment recommendations This section is designed to serve as animmediate reference source and clinical guide for the practicing health careprofessional The discussion on pesticides, in particular, emphasizes theenvironmental as well as occupational exposures that may lead to illness
Trang 28Section V (Chapters 35 through 42) presents the roles and responsibilities
of the industrial hygienist and the safety professional Chapters onoccupational mental health and workplace violence, and substance usedisorders present programs for controlling and treating these problems
Section VI (Chapters 43 through 50) provides a comprehensive discussion
of environmental medicine and some of the complex societal issues thataccompany industrialization and technologic advances throughout the world.Emphasis is placed on recognizing that some common “occupational”exposures are found also in homes and public locations and require the samehigh index of suspicion that is assumed when encountered in the workplace
The Appendix concisely introduces biostatistics and epidemiology These
topics are important not only in research but also in clinical practice.Ultimately, all occupational and environmental physicians serve as clinicalepidemiologists
Trang 29This book brings together UCSF faculty with a combined experience of 40years of teaching occupational and environmental medicine, and manygraduates of the program now working in public health agencies and othercampuses I also welcome the new co-editor, Robert J Harrison, MD, MPH,whose considerable contributions to the former editions of the book uniquelyqualify him to take on this role
Joseph LaDou, MS, MDSan Francisco, California
May 2014
Trang 30Section I Occupational Health
Trang 31The Practice of Occupational Medicine
Joseph LaDou, MS, MD Robert J Harrison, MD, MPH
The Occupational Safety and Health Act of 1970 (OSHAct) ensures “everyworking man and woman in the United States safe and healthful workingconditions.” This act created the Occupational Safety and HealthAdministration (OSHA) and the National Institute for Occupational Safetyand Health (NIOSH) At the time the OSHAct was passed, occupationalmedicine was one of the country’s smallest medical specialties, with only afew residency-trained specialists in academic positions, consulting practices,
or employed by major corporations Private practitioners provided care foroccupational injuries, sometimes in industrial settings, but mostly as a part ofother services provided in a private office or hospital setting
As a result of passage of the OSHAct and formation of OSHA andNIOSH, occupational medicine became the center of considerable attention
by medical schools, hospitals, clinics, and physicians from many differentspecialties The opportunities for public health practice, union-based clinicalcare, and independent consulting created new career opportunities formedical students Medical schools received financial support for trainingfrom NIOSH, and OSHA gave occupational physicians a voice in theincreasingly regulated industrial setting
Trang 32Moreover, the IOM reports a severe shortage of frontline primary carephysicians who are willing and able to care for patients with occupational andenvironmental illnesses The IOM concludes that data from the Bureau ofLabor Statistics (BLS) are significant underestimates of occupationaldiseases, which emphasizes the need for more and better diagnoses ofoccupational diseases by primary care practitioners The IOM recommendsthat “all primary care physicians be able to identify possible occupationally
or environmentally induced conditions and make appropriate referrals forfollow-up.”
Since passage of the OSHAct, US employment has more than doubled,from 56 million workers at 3.5 million work sites to 130 million workers atnearly 8 million work sites Most of the labor force expansion during thisperiod was in service sector companies with fewer than 500 employees.Although these companies are not likely to employ occupational physicians,they do add to the demand for injury and illness care as well as for health andsafety consulting Employers expect to hire almost 500 occupationalphysicians over the next 5 years and are looking for residency-trainedspecialists Skills in evidence-based clinical evaluation and treatment,determining fitness for work, and worker and management communicationsare the most important technical skills needed by employers The estimatednumber of occupational physicians that employers expect to hire over thenext 5 years is substantially higher than the number estimated to be producedfrom current training programs Opportunities in occupational medicine, and
in the increasingly important specialty of environmental medicine, vary byregion There are many industrial areas with an established medicalcommunity serving their needs, yet in other areas there are growing industrialcorridors very much in need of occupational physicians
Occupational Medical Practice
Occupational injuries and illnesses are among the five leading causes ofmorbidity and mortality in the United States and in most other countries.Injuries at work comprise a substantial part of the country’s injury burden,accounting for nearly half of all injuries in some age groups Occupationalinjuries are significantly underreported, yet 3.8 million recognized disablinginjuries still occur per year One-third of all injury cases result in loss ofwork There are over 4500 traumatic occupational fatalities each year,
Trang 33ranking the workplace as the eighth leading cause of death Since the early1970s, more than 113,000 worker deaths have been attributed topneumoconioses This number represents only a small portion of the totaldeaths attributable to occupational lung disease The number of deaths fromasbestos-related mesothelioma has been increasing steadily in the same timeperiod, as are deaths with hypersensitivity pneumonitis as an underlying orcontributing cause Asthma is now the most common occupationalrespiratory disease Population-based estimates suggest that approximately15% of new-onset asthma in adults is work-related.
The human costs associated with occupational injuries and illnesses arestaggering Financial costs of occupational injuries and illnesses exceed $250billion per year The medical and indirect costs of occupational injuries andillnesses are at least as large as the cost of cancer
Workers’ compensation law places the occupational physician in acritically important role The physician must determine that an injury orillness is caused by work, diagnose the condition, prescribe care, and assessthe extent of impairment and the ability of the worker to resume work Insome instances, determinations that injuries or illnesses are the result of workmay be contentious and require the physician to determine causation andprovide an opinion in the legal setting
Occupational physicians play an important role in prevention, recognition,and treatment of injuries and illnesses In some regions, occupationalphysicians customarily are employed by corporations More recently, it hasbecome the practice of corporations to contract with occupational physicians
to act as their consultants These consultants increasingly become involved inissues of environmental as well as occupational health Most workplaceinjuries and illnesses, however, are attended by private practitioners in clinicand hospital settings This is a function of the framework of the workers’compensation systems within each state
When a compensation case results in litigation, occupational healthprofessionals become important experts in resolving disputes The physicianasked to evaluate the worker in most states is designated an independentmedical examiner (IME) The evaluation by IME is often the highest level ofevaluation the worker will encounter Most requests for IME opinions comefrom insurers, but on occasion, plaintiffs’ attorneys, judges, and others mayinitiate an IME evaluation Many occupational physicians find a full-time
Trang 34practice in this highly specialized area of workers’ compensation.
Recognition of Occupational Injury & Illness
It is a disconcerting fact that workers’ compensation fails to compensate mostoccupational injuries and illnesses, including fatalities Only a small fraction
of occupational diseases is covered by workers’ compensation, and only asmall fraction of people suffering from occupational illnesses ever receivesworkers’ compensation benefits Either by law or by practice, compensation
in many states is particularly limited for occupational diseases A recent studysuggests that workers’ compensation insurance absorbs only 21% of the truecosts of occupational injuries and illnesses
Many workers’ compensation laws now prevent or discourage therecognition of occupational diseases The efforts of many industries and theirinsurers to deny claims lead to the failure to compensate workers who haveoccupational diseases Another important contributing cause is the limitedinformation available to physicians Of the tens of thousands of chemicals incommon commercial use in the United States each year (3000 of them inquantities of > 1 million pounds per year), only 7% have been screened fortoxicity, and fewer than half of those have been studied thoroughly Althoughinterest in occupational medicine is increasing across the country, the failure
to diagnose occupational diseases and the lack of proper compensation ofworkers continue to be major social policy failures
More than half a million chemicals are found in work settings, and manymillions of workers are exposed to these substances Yet only 10,000workers’ compensation claims for illnesses caused by chemical exposure arefiled each year Workplace exposure to carcinogens accounts for about 5–10% of all cancer cases, yet fewer than 0.1% of cancer patients ever receiveany settlement from employers For example, NIOSH estimates that 16–17%
of lung cancer cases in men and 2% of cases in women are work-related
As many as 15,000 of the 100,000 commonly used industrial chemicalsare carcinogenic to humans Although occupational cancers are totallypreventable, workers continue to be exposed to carcinogens possibly becausefew cases are reported, are awarded benefits, or are successful in litigation.With the exception of cancers caused by exposure to asbestos, occupationalcancer cases ever receive workers’ compensation benefits
Trang 35Teaching Occupational Medicine
The majority of physicians who practice occupational medicine in the privatepractice setting do so with the knowledge gained by self-study, attendance atshort courses, and practice experience A lack of training in occupationalmedicine may account for some of the failure to diagnose occupationaldiseases and eventually to compensate workers Traditional public healthapproaches are infrequent in many such practices Moreover, the long latencyperiods of many occupational diseases present a causation dilemma both forphysicians and for insurers Time constraints and knowledge may hamper theability to recognize common work-related conditions such as work-relatedasthma, and concerns regarding the effect of the diagnosis on the patient’s joband income may discourage reporting
Occupational medicine in recent years is receiving an increasing emphasis
in medical schools Faculty that had limited opportunity for research andteaching in occupational medicine at most medical schools now find anumber of new positions through the avenue of environmental health Thisdynamic advancement is largely the result of academic achievements in theUnited States where fundamental research in both fields appears to beexpanding In a survey of European medical schools, on the other hand, amean number of 25.5 hours was given to formal instruction in occupationalmedicine to medical undergraduates Occupational diseases and principles ofprevention are covered in most schools, while disability and return to workare very poorly represented among the topics that were taught to students.The teaching of occupational medicine to undergraduates in the UnitedKingdom has declined, with fewer schools now providing lectures, projectwork, or ward-based tuition in this subject However, the success of addingenvironmental medicine to occupational is now beginning to be recognizedthroughout the world in both teaching and research venues
Residency and Other Training
NIOSH, in addition to its roles in supporting occupational health research andrecommending occupational standards to OSHA, funds most trainingprograms in occupational health and safety NIOSH extramural funds support
a network of 18 regional education and research centers located atuniversities in 17 states and approximately 30 individual training projectgrants in 20 states In 2010–2011, 329 professionals graduated from the ERC
Trang 36training programs with specialized training in disciplines that includeoccupational medicine, occupational health nursing, industrial hygiene,occupational safety, and other closely related occupational safety and healthfields of study.
Most training programs in occupational medicine are associated withuniversities that have schools of public health, but some programs are foundwithin specific departments (eg, preventive medicine, community medicine,internal medicine, or family practice) within a medical school There are 25approved residency programs in the United States The annual number ofgraduates from each residency program averages only slightly greater thantwo This small number does not answer the requirement for academicallytrained occupational physicians, nor does it fill the vacancies in public healthdepartments in many areas of the country
Board Certification
Board-certified physicians generally have more diverse practice activities andskills, with greater involvement in management, public health–orientedactivities, and toxicology The American Board of Preventive Medicine(ABPM) began board certification of specialists in occupational medicine in
1955 ABPM has certified a total of 4047 occupational physicians through
2013 Fewer than half of these board-certified occupational physicians arecurrently in practice Although occupational medicine is the most popular ofthe ABPM certifications, it remains one of medicine’s smallest specialties.Applicants for board certification peaked at 331 in 1996 Fewer than half thatnumber applied for board certification in 2013 The number of occupationalphysicians certified by ABPM is not replacing the losses to retirement orretreats from the field In 2012, 86 of 119 physicians (a pass rate of 72%)passed the board certification examination This small supply of new board-certified specialists is far below that which would be required merely toreplace the loss by retirement of older board-certified physicians
The ABPM approved a complementary pathway in 2010 to accommodatephysicians who want to make a mid-career shift into the practice ofpreventive medicine and to achieve certification by the ABPM in one of threespecialty areas—aerospace medicine, occupational medicine, or public healthand general preventive medicine A variety of distance learning opportunitiesare increasingly available for maintenance of certification for physicians with
Trang 37ABPM certification after 1998.
For details on certification, contact
American Board of Preventive Medicine
111 West Jackson Boulevard, Suite 1110
Harber P: Career paths in occupational medicine J Occup Environ Med2012;54:1324 [PMID: 23047658]
Harber P: Occupational medicine practice: activities and skills of a nationalsample J Occup Environ Med 2010;52:1147 [PMID: 21124250]
Harber P: Value of occupational medicine board certification J Occup
Environ Med 2013;55:532 [PMID: 23618887]
Leigh JP: Economic burden of occupational injury and illness in the UnitedStates Milbank Q 2011;89:728 [PMID: 22188353]
Leigh JP: Workers’ compensation benefits and shifting costs for
occupational injury and illness J Occup Environ Med 2012;54:445
[PMID: 22446573]
National Assessment of the Occupational Safety and Health Workforce,2011
http://www.cdc.gov/niosh/oshworkforce/pdfs/NASHW_Final_Report.pdf.Parhar A: Barriers to the recognition and reporting of occupational asthma
by Canadian pulmonologists Can Respir J 2011;18:90 [PMID:
21499594]
Trang 38SELF-ASSESSMENT QUESTIONS
Select the one correct answer to each question
Question 1: Occupational injuries and illnesses
a are defined by workers’ compensation law
b require an occupational physician to provide medical care
c are among the five leading causes of morbidity and mortality in theUnited States and in most other countries
d are declining in number as insurance settles claims
Question 2: Occupational physicians
a are primarily employed by public health agencies
b play an important role in prevention, recognition, and treatment ofinjuries and illnesses
c are prevented by law for acting as consultants to employers
d should endeavor not to become involved in issues of environmentaland occupational health
Question 3: Independent medical examiners
a are required when a compensation case results in litigation
b are hired by workers to resolve disputes
c often provide the highest level of evaluation the worker will
encounter
d are in most jurisdictions hired by plaintiff’s attorneys
Question 4: Board-certified physicians
a generally have more diverse practice activities and skills, withgreater involvement in management, public health-oriented
activities, and toxicology
b make up the large majority of occupational physicians in privatepractice
c more than replace the losses to retirement or retreats from the field
d are unable to appear as expert witnesses in court cases
Trang 39International Occupational &
Environmental Health
Joseph LaDou, MS, MD
GLOBAL WORKING CONDITIONS
The world’s workforce sustains more than 250 million injuries every year.Included in this number are 2 million people killed by their work each year.Occupational illnesses attributed to hazardous exposures or workloads may
be as numerous as occupational injuries The lack of adequate surveillance ofoccupational disease prevents accurate assessment of the problem The globalepidemic of occupational injury and disease is not new It is inherent in thenature of industrial development that poorer countries adopt hazardousproduction The resultant epidemic of injuries and illnesses is compounded
by the rapid transfer by developed countries of hazardous industries no longercompatible with host country government regulation While internationalstandards attempt to obligate employers to pay for occupational injury anddisease, inadequate prevention, detection, and compensation make a mockery
of these standards
Occupational injuries and diseases have a profound effect on the health ofthe world’s population Occupational injuries and diseases play an even moreimportant role in developing countries where 70% of the working population
of the world lives Occupational injuries and diseases have a serious impact
on the economy of all countries Occupational accidents cause permanentdisabilities and economic losses amounting to 4–6% of national incomes.These preventable injuries and diseases also have profound impacts on thework productivity, income, and social well-being of workers and theirfamilies Often ignored is the reality that a single occupational injury or
Trang 40illness can tip an entire family into poverty.
Developing countries seldom have enforceable occupational andenvironmental regulations Occupational health should have high priority onthe international agenda, but occupational safety and health (OSH) lawscover only about 10% of workers in developing countries These laws omitmany major hazardous industries and occupations Progress in bringingoccupational health to the industrializing countries is painfully slow In thepoorest countries, there has been no progress at all
Many other health issues compete with occupational and environmentalhealth for scarce funding Developing countries are concerned withoverwhelming problems of unemployment, malnutrition, and infectiousdiseases About 450 million people live in extreme poverty and malnutrition,while another 880 million live in what can only be described as absolutepoverty Nearly every fifth worker in the world has to survive on less than $1
a day for each family member Sixteen million people die each year fromeasily preventable diseases, and occupational diseases are not included in thatdefinition
Working conditions in much of Latin America, Africa, Central andEastern Europe, China, India, and Southeast Asia are unacceptable The laborforce in developing countries totals around 1.8 billion, but it will rise to morethan 3.1 billion in 2025—implying a need for 38–40 million new jobs everyyear This being the case, demands by workers and governments forimproved occupational safety and health are not likely to be heeded
Developing countries are far behind industrialized countries in thedevelopment of workers’ compensation programs In many countries of Asia,Latin America, and Africa, only a small fraction of the workforce is covered
by workers’ compensation programs In countries as large as Egypt, India,Pakistan, and Bangladesh, fewer than 10% of workers are covered byworkers’ compensation In China, fewer than 15% of workers are covered,and in Venezuela and Colombia, fewer than 20% In many developingcountries, workers’ compensation is little more than a paper program wherethe government works in concert with industry to minimize the provision andthe costs of benefits
GLOBALIZATION