Factors associated with pollinosis in a middle aged population in Gunma, Japan

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  • HASHIMOTO Yuriko
    School of Social Welfare, Tokyo University and Graduate School of Social Welfare
  • OTANI Tetsuya
    Department of Public Health, Gunma University Graduate School of Medicine
  • KOYAMA Hiroshi
    Department of Public Health, Gunma University Graduate School of Medicine
  • IWASAKI Motoki
    Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center
  • SASAZAWA Yosiaki
    Faculty of Education, Foundation of Health Promotion, University of the Ryukyus
  • SUZUKI Shosuke
    Gunma Occupational Health Promotion Center International Eco-Health Research Group

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  • 群馬県中高年を対象にした花粉症に関連する要因についての横断研究
  • グンマケン チュウコウネン オ タイショウ ニ シタ カフンショウ ニ カンレンスル ヨウイン ニ ツイテ ノ オウダン ケンキュウ

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Abstract

Objective There are several hypotheses for why the prevalence of pollinosis is increasing. The purpose of this study is to assess various factors related to the pollinosis.<br/>Methods The subjects were 10,898 participants aged between 47 and 77 years old who completed a self-administered questionnaire in 2000, in the second survey of a population-based cohort in Gunma Prefecture, named the Komo-Ise Study. The questionnaire included items on health status, history of diseases including pollinosis, occupation, habits, daily activities, and family life. Logistic regression analysis was conducted to determine the odds ratios of various life-style factors in relation to the history of pollinosis. The odds ratios were adjusted for sex, study area, and age.<br/>Results A history of pollinosis was observed in 17.1% of all the subjects. Women were more frequently affected than men [adjusted odds ratio (aOR)=1.31, 95% confidence interval (CI): 1.17-1.46]. City residents were more likely to have a history of pollinosis than village residents (aOR=1.56, 95% CI: 1.36-1.76). Those in their 70s had less history of pollinosis than counterparts in their 40s (aOR=0.19, 95% CI: 0.15-0.24). There was a statistically significant association between age and remission of pollinosis (P for trend<0.001).<br/> With respect to health, trouble getting to sleep or staying asleep, a history of hyperlipidemia, asthma, ulcer, low back pain, and depression or neurosis were significantly linked with pollinosis, while a history of diabetes had a significant inverse association.<br/> With respect to life-style, the following factors were all significantly associated with the history of pollinosis: currently employed person, office worker, emotional stress at work, eating between meals, having meals regularly, eating until completely full, drinking wine or sake less than once a week, drinking beer, drinking spirits, whisky or brandy almost everyday, taking long walks, doing physical exercise, cleaning the house, going out for entertainment, going shopping, having been married, having children with some problems and more than 10 million yen income. There were significant inverse associations between a history of pollinosis and being a farmer, having a current smoking habit, going to pachinko and going to karaoke.<br/>Conclusion Our results suggest that a history of pollinosis is strongly associated with the following host factors: being female, young age, city dwelling, self-rated stress, over-nutrition, office working, and high socio-economic status.

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