title: Rural-urban differences in sociodemographic, social network and lifestyle factors related to mortality of middle-aged Japanese men from the Komo-Ise cohort study.
abstract: To examine rural-urban differences in the relationships of sociodemographic, social network, and lifestyle factors to mortality in middle-aged men, we used the data from a community based prospective cohort study, the Komo-Ise study. The subjects were all men aged 40-69 years living in Komochi Village, the rural group (n=2,295), or the downtown district of Isesaki City, the urban group (n=3,334), as of 1993. They completed a self-administered questionnaire in 1993 and were followed for all-cause deaths until 2000. The Cox proportional hazards model was used to compute relative risks (RRs) with 95% confidence intervals (CIs). Low educated men and men without a spouse in the rural group had an increased risk of mortality (RR=4.4; 95%CI: 1.1-18.2, RR=2.4; 95%CI: 1.2-4.5). Men who did not enjoy good fellowship with their neighbors in the rural group had a decreased risk of mortality (RR=0.58; 95%CI: 0.35-0.97). Mortality risks were significantly higher in urban men not participating in hobbies, club activities or community groups (RR=1.6; 95%CI: 1.1-2.4). These variables remained significant risk factors, even after controlling for all sociodemographic, social network, lifestyle, and health status variables. Educational level, marital status and relation to neighborhoods showed significant rural-urban differences.
authors.affiliation: Department of Public Health, Gunma University School of Medicine, Maebashi, Japan.
authors.forename: Motoki
authors.initials: M
authors.lastname: Iwasaki
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Otani
authors.forename: Akiko
authors.initials: A
authors.lastname: Ohta
authors.forename: Sasazawa
authors.initials: S
authors.lastname: Yosiaki
authors.forename: Masaya
authors.initials: M
authors.lastname: Kuroiwa
authors.forename: Shosuke
authors.initials: S
authors.lastname: Suzuki
mesh_terms: D000328:Adult; D000368:Aged; D002423:Cause of Death; D006304:Health Status; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008019:Life Style; D008297:Male; D008875:Middle Aged; D009026:Mortality; D016016:Proportional Hazards Models; D011446:Prospective Studies; D012307:Risk Factors; D012423:Rural Health / Q000706:statistics & numerical data*; D012944:Social Support; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D014504:Urban Health / Q000706:statistics & numerical data*