The logic of a controversy: the case of Agent Orange in Australia

Since 1979 the Vietnam Veterans' Association of Australia (VVAA) has claimed that exposure to the herbicide Agent Orange in Vietnam has adversely affected the health of Vietnam veterans and their families. A campaign for government recognition of diseases and disabilities caused by herbicide exposure led in 1983 to the appointment of the Evatt Royal Commission which, after a 2-year inquiry, comprehensively rejected the VVAA's claim. The Evatt Commission's findings have not been accepted by the VVAA and the claim continues to be defended, albeit in a highly qualified form. This controversy exemplifies the way in which a claim can attract public support, and persist despite rejections by Committees of Inquiry. An understanding of the reasons for the persistence of controversy requires an understanding of the logic of rejecting causal claims, the psychology of everyday inductive reasoning, and the interaction between politics and science.

Psychometric detection of fabricated symptoms of posttraumatic stress disorder

Vietnam veterans with posttraumatic stress disorder and two groups instructed to fabricate its symptoms completed the MMPI. A discriminant function analysis of selected scale scores and an empirically derived decision rule successfully classified over 90% of the subjects.

Do Vietnam veterans suffer from toxic neurasthenia?

This paper evaluates the claim that Vietnam veterans with psychiatric disorders are suffering from toxic neurasthenia--a neurasthenic syndrome caused by exposure to pesticides while serving in Vietnam.

Diagnosis of posttraumatic stress disorder in Viet Nam veterans: preliminary findings

Sixty-six Viet Nam veterans were evaluated for posttraumatic stress disorder. Several of the DSM-III criteria for the disorder, but no other clinical features, distinguished patients diagnosed as having the disorder from others. The findings tend to validate the DSM-III construct for this disorder.

Alcohol misuse and posttraumatic stress disorder: a response to Lacoursiere and Coyne

The criticisms in Lacoursiere and Coyne's comment are refuted point by point. The criticisms of Roy's statistical methods are judged irrelevant because statistical significance related to what was only a tangential issue in Roy's study. The clinical implications of the relationship between posttraumatic stress disorder and alcohol misuse are also discussed.

Assessment of Viet Nam veterans for posttraumatic stress disorder in Veterans Administration disability claims

Since the Veterans Administration (VA) authorized compensation and other benefits for posttraumatic stress disorder, delayed type, in October 1980, the agency has received an increasingly large number of claims--mainly from Viet Nam veterans--for this disorder. An unprecedented challenge of the adequacy of psychiatric disability evaluation in the VA has thus been created. The authors describe efforts in one large program to meet this challenge and review 12 problems in the diagnostic process. Cooperation of all parties in claims transactions, thorough claimant assessment, reliance on DSM-III criteria and methods and consultation with examiners are essential principles for this work.

Receipt of multiple benefits by disabled-worker beneficiaries

In 1971, 44 percent of workers who had been currently entitled to social security disability insurance (DI) benefits for 1 year or more also received benefits from at least one other source. Their average disability insurance benefit was higher than that of persons who received only DI benefits. On the average, total benefits to those receiving multiple benefits were double the amounts paid to those receiving only DI benefits. The combined benefits for the former produced median replacement rates about 50 percent larger than the median replacement rates for the latter. High replacement rates--defined here as more than 80 percent of predisability earnings replaced by benefit--predominate among those with multiple benefits. Considering replacement rates based solely on disability insurance benefits substantially understates the extent to which benefits from public and private programs actually replace predisability earnings. Replacement rates based solely on DI benefits are generally higher for those receiving DI benefits only than for persons receiving multiple benefits. Limiting DI benefits to the replacement rate from DI benefits alone is disadvantageous for persons who receive only DI benefits, compared with those who also receive other benefits.

Optimum radiographic examination for consideration of compensation awards: III. Knee, hand and foot

In a large Veterans Administration (VA) hospital, a prospective study was undertaken to determine the optimum number of radiographic projections needed to assess applicants for VA compensation for knee, hand, and foot diseases or injury claimed to be service-related. Results show that the final radiographic assessment could be made in all 535 (100%) of the knee examinations using two views (anteroposterior and lateral), all 181 (100%) of the hand examinations using one view (anteroposterior), and all 223 (100%) of the foot examinations using two views (anteroposterior and lateral). Extrapolating these results to data on compensation examinations performed in the entire VA system (fiscal year 1978), it was concluded that limiting the radiographic examinations of the knee, hand, and foot to these views would eliminate 91,000 radiographs in the evaluation of 119,000 applicants and yield an annual savings of about $500,000.

Optimum radiographic examination for consideration of compensation awards: I. General methodology and application to chest examination

A major goal of the radiologist is to devise methods to decrease health care costs and radiation exposure without sacrificing diagnostic accuracy. In a large Veterans Administration (VA) hospital, a prospective study was undertaken to determine the optimum number of radiographic projections needed to assess applicants for VA compensation for chest disease or injury claimed to be service-related. Three separate readings of every chest radiographic assessment could have been made from a single posteroanterior view. In eight cases, granulomas or mild hyperexpansion of the lungs were only appreciated using the lateral projection, but these findings were not clinically significant and did not affect decisions as to whether compensation sould be awarded. The only potentially serious lesion missed (a possible pulmonary nodule) using the posteroanterior view alone was also missed using the lateral and only suggested by the oblique views. Extrapolating these results to data on compensation examinations performed in the entire VA system (fiscal year 1978), it was concluded that limiting the radiographic examination of the chest to a single posteroanterior view would eliminate 150,000 radiographs in the evaluation of 190,000 applicants and yield an annual savings of almost $900,000.

Optimum radiographic examination for consideration of compensation awards: II. Cervical and lumbar spines

In a large Veterans Administration (VA) hospital, a prospective study was undertaken to determine the optimum number of radiographic projections needed to assess applicants for VA compensation for cervical and lumbar spine disease or injury claimed to be service-related. Results show that the final radiographic assessment could be made in 100% (245) of cervical spine examinations using two views (anteroposterior and lateral) and in 99.3% (699/704) of lumbar spine examinations using two views (anteroposterior and a single well centered lateral). Extrapolating these results to data on compensation examinations performed in the entire VA system (fiscal year 1978), it was concluded that limiting the radiographic examinations of the cervical and lumbar spines to these views would eliminate 193,000 radiographs in the evaluation of 100,000 applicants and yield an annual savings of about $1,000,000.

Compensation examination of the cervical and lumbar spines: critical disagreement in radiographic interpretation

Radiographic interpretation is often the major factor in the decision to award compensation for job-related complaints, especially in the Veterans Administration system. Three board-certified radiologists reviewed 200 consecutive lumbar and cervical spine examinations and assigned each case to one of three categories: normal, normal for age (not compensable), or degenerative disease (compensable). A critical disagreement, in which at least one radiologist considered the examination compensable and another not compensable, occurred in interpretation of 31% of the cervical and 46% of the lumbar spine examinations. Although the overall detection of radiographic findings was similar among all three radiologists, diagnostic interpretation of the findings varied greatly. Although most radiologists and orthopedists agree that the use of plain radiography of the spine as a deciding factor in awarding compensation is unjustified and inappropriate, until the regulations are changed there is a pressing need for strict, objective, radiographic criteria for determining "normal aging" of the cervical and lumbar spines so that interpreatations can be more uniform.

Epidemiology of multiple sclerosis in U.S. veterans: 1. Race, sex, and geographic distribution

Five thousand three hundred five World War II and Korean conflict veterans who have been compensated by the Veterans Administration for multiple sclerosis (MS) were matched to controls on the basis of age, date of entry into military service, and branch of service. Case/control ratios for white males, white females, and black males were 1.04, 1.86, and 0.45, respectively. The coterminous 48 states, divided into three tiers on the basis of latitude, exhibited the well-known north-south gradient in risk: For all races and both sexes, case/control ratios were 1.41, 1.00, and 0.53 for the North, Middle, and South tiers. Both white females and black males showed this same north-to-south variation in risk. The case/control ratio for males of races other than black or white was 0.23, with possible deficits in risk for American Indians and Japanese-Americans. Filipinos and Hawaiian Japanese were significantly low-risk groups. These findings suggest that both a racial and a possibly genetic predisposition, as well as a geographically determined differential exposure to an environmental agent, are related to the risk of MS.

Disability payments for psychiatric patients: is patient assessment affected?

Collected data for 348 veterans who had been patients at a psychiatric hospital: MMPI results, number of days of hospitalization already past when the MMPI was taken, length of the entire hospitalization during which the MMPI was taken are amount of disability payment at the time of the MMPI, and number of hospitalizations to date. The amount of disability payments was correlated significantly with the MMPI scales associated with psychosis. Veterans who were not receiving disability payments but who later obtained payments appeared more severely psychiatric on the MMPI than others without payments, but were less willing to report their strengths. Those who received only small payments failed to report improvement in the early part of hospitalization and were hospitalized disproportionately to their symptoms, unlike those with maximum payments or rejected claims for payments. It is concluded that patients eligible for larges payments may alter their self reports, but that disability payments nonetheless are awarded only in proportion to actual impairment.

Symptoms in veterans considering compensation claims

The symptomatology of 56 male veterans considering compensation claims was compared to the symptomatology seen in 163 veterans not considering such claims. Antisocial behaviors, somatic/neurotic complaints, and persecutory ideas were all positively correlated with consideration of a claim. Although the symptom profile is consistent with diagnosis of antisocial personality, a correlation with this diagnosis was not established. Nonetheless, the clinical profile does suggest a link between noncompensable disorders and consideration of a claim. The implications of this finding for military and Veterans Administration psychiatry are discussed.

Pure tone delayed auditory feedback. Effect of hearing loss on disruption of tapping performance

Pure tone delayed auditory feedback audiometry was administered to 20 veterans with normal hearing at 1 kHz and a sensorineural hearing loss associated with noise exposure at 4 kHz. Absolute and relative time errors as well as pattern errors were analyzed for the group and for each individual. Mean data showed no difference between error measures for the two frequencies. However, individual data revealed that errors in the subjects' performance occurred at a level slightly closer to threshold at the frequency with the hearing loss (4 kHz) than at the frequency at which hearing was normal (1 kHz).

[About insurance medical evaluation of psychoreactive disturbances (author's transl)]

Results arising from injuries within the valid field of the statutory Accident Insurance and of the Federal Law Governing Pensions and Grants can only be recognized as such and give rise to financial compensations if bodily or psychic damages within the legally protected Risk Area are made "probable", and if a connexion between these injuries and the unbiased finding of the actual health disorders prove to be "substantial". The assessment of the damage must bear in mind the individual conditions of the victims. Symptomatology, differential diagnosis and medical insurance estimation of the "neurosis in the true sense", of the personality alteration brought about by selfexperienced hardships (concentration camp neurosis) and the psychogenic breeding of symptoms with a final view to having an ailment recognized, are discussed with a special bearing on the phenomenons which cause the will to express itself.

Follow-up studies of World War II and Korean war prisoners. II. Morbidity, disability, and maladjustments

US Army veterans taken prisoner (POW's) in World War II and in the Korean War are compared with controls as to hospital admissions from 1946 to 1965 (1954-1965 for Korean War POW's), and as to symptoms, disability, and maladjustments in 1966-1967. Sequelae of the POW experience are both somatic and psychiatric, and are of greatest extent and severity among Pacific World War II POW's. Among European World War II POW's only psychiatric sequelae are apparent. Somatic sequelae were most prevalent in the early years after liberation, but for Pacific World War II POW's they persist in the form of higher hospital admission rates for many specific causes in the most recent period. Nevertheless, persistent psychiatric sequelae (especially psychoneurosis but also schizophrenia) are the more notable and pervasive for both Pacific World War II POW's and Korean War POW's as seen not only in elevated hospital admission rates but also in VA disability awards and in symptoms reported on the cornell Medical Index Health Questionnaire. The excess morbidity appears to correlate well with retrospective accounts of weight-loss and nutritional deficiency diseases and symptoms during the POW period.