Background Characteristics of Basic Health Examination Participants: the JPHC Study Baseline Survey

DOI Web Site PubMed 被引用文献17件 参考文献25件
  • Iwasaki Motoki
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East
  • Otani Tetsuya
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East
  • Yamamoto Seiichiro
    Cancer Information and Epidemiology Division, National Cancer Center Research Institute
  • Inoue Manami
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East
  • Hanaoka Tomoyuki
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East
  • Sobue Tomotaka
    Cancer Information and Epidemiology Division, National Cancer Center Research Institute
  • Tsugane Shoichiro
    Epidemiology and Biostatistics Division, National Cancer Center Research Institute East

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Background: Although epidemiologic studies including the Japan Public Health Center-based Prospective Study on Cancer and Cardiovascular Disease (JPHC study) have frequently used the basic health examination participants as study subjects, their background characteristics have rarely been investigated. The aim of this study is to clarify the background characteristics of participants and to discuss their impact on epidemiologic studies.<br>Methods: Subjects were 43, 140 (Cohort I) and 34, 892 (Cohort II) respondents aged 40-59 years who completed a self-administered questionnaire in 1990 or 1993-94 by the JPHC Study. Respondents whose data of the basic health examination were also available were defined as participants. We com-pared their sociodemographic factors, personal medical history, and lifestyle-related factors with those of non-participants.<br>Results: Participants tended to be older and less educated. They were more likely to engage in agri- culture, forestry and fisheries or to be self-employed persons, or homemakers. Male participants smoked less and were more likely to drink alcohol beverage moderately. Female participants smoked and drank less but tended to participate more in sports and physical exercise in their leisure time. Both male and female participants tended to eat fruits and green vegetables more often than non-partici-pants. In short, participants had a different socioeconomic status from non-participants and a favorable lifestyle profile, especially among women. These findings were principally consistent between the two cohorts.<br>Conclusion: These differences between participants and non-participants in the basic health exami- nation might cause a selection bias that limits the application of the results to only participants in the basic health examination.<br>J Epidemiol 2003;13:216-225.

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