ATTRITION IN THE HIROSHIMA ADULT HEALTH STUDY: FIRST CYCLE ANALYSIS
Participation data for the first cycle of the Adult Health Study conducted in Hiroshiria during the period July 1958 to December 31, 1960 were presented. The continuing medical examination program includes approximately 13,700 individuals and was designed to investigate the late effects of nuclear irradiation on man. The study population is composed of four exposure groups of equal size, matched by age and sex. Participation scores were analyzed by exposure, age, sex, and socioeconomic variables, as well as by a history of previous contact with the ABCC programs. Significant differences were demonstrated between the participation scores by sge, marital status, history of prior contact with ABCC, and occupation (this latter category was significant only for males). Although differences were observed for these variables, the significance was usually attributable to one discrepant category in each of the variables, often the least populated. A trend was apparent with respect to exposure, with the lowest participation noted in the nonexposed and the highest participation in the exposed with symptoms group; however, the absolute differences were not statistically significant when analyzed in relation to all of the remaining variables. Sex differences were not significant. Although relatively minor differences were demonstrated for some variables, the outstanding features are the remarkably low attrition rates observed. Only nine per cent of the population was in the so-called refusal category and over 80 per cent of the living population, including non-Hiroshima residents, were examined during the first cycle of the program. (auth)
- Research Organization:
- Atomic Bomb Casualty Commission, Hiroshima and Nagasaki
- NSA Number:
- NSA-18-003564
- OSTI ID:
- 4127301
- Journal Information:
- Yale Journal of Biology and Medicine (U.S.), Journal Name: Yale Journal of Biology and Medicine (U.S.) Vol. Vol: 36; ISSN YJBMA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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