男性勤労者において家庭外の受動喫煙の曝露頻度は喫煙状況に関係なく1秒率の低下に影響する Frequency of Exposure to Secondhand Smoke Outside the Home Is Associated with a Lower FEV<sub>1</sub>/FVC in Male Workers Regardless of Smoking Status

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Author(s)

    • 井元 淳 INOMOTO Atsushi
    • 九州栄養福祉大学 リハビリテーション学部 理学療法学科|産業医科大学大学院 医学研究科 産業衛生学専攻 Faculty of Rehabilitation, Kyushu Nutrition Welfare University|Graduate School of Occupational Health, University of Occupational and Environmental Health, Japan
    • 大和 浩 YAMATO Hiroshi
    • 産業医科大学 産業生態科学研究所 健康開発科学 Department of Health Development, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan
    • 姜 英 JIANG Ying
    • 産業医科大学 産業生態科学研究所 健康開発科学 Department of Health Development, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan
    • 西山 信吾 NISHIYAMA Shingo
    • 産業医科大学 産業生態科学研究所 健康開発科学 Department of Health Development, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan
    • 福田 里香 FUKUDA Rika
    • 九州労災病院 治療就労両立支援センター Kyushu Rosai Hospital Research Center for the Promotion of Health and Employment Support
    • 出口 純子 DEGUCHI Junko
    • 九州労災病院 治療就労両立支援センター Kyushu Rosai Hospital Research Center for the Promotion of Health and Employment Support

Abstract

加齢に伴う呼吸機能の低下は慢性閉塞性肺疾患(COPD)の発症や高齢者の死亡リスクに繋がるため,若い世代からの呼吸機能低下の予防が求められる.本研究では身体組成や生活習慣の影響を考慮した上で,気道の閉塞によって引き起こされる閉塞性換気障害の指標である1秒率に影響を与える要因を検討することを目的とした.5企業の男性従業員262名を対象とし,喫煙状況,現在や過去の受動喫煙の有無,家庭外での受動喫煙の曝露頻度,身体活動量(PA)などを含む生活習慣を聴取した.また身体組成や呼吸機能を測定した.統計学的分析は得られたデータについて非喫煙者との比較をロジスティック回帰分析で年齢を調整して検討した.さらに,年齢,身長,喫煙状況,また生活習慣を調整変数とした重回帰分析により1秒率に影響を与える要因を検討した.年齢で調整したロジスティック回帰分析の結果,現喫煙者と重喫煙者は体脂肪率,内臓脂肪面積,喫煙者との同居率,家庭外での受動喫煙の曝露頻度が有意に高かった.またPAは現喫煙者と重喫煙者で有意に低く,1秒率は重喫煙者で有意に低かった.重回帰分析の結果,1秒率に関連する因子として家庭外での受動喫煙の曝露頻度のみが抽出された.COPD発症の予防策として企業内で健康管理に従事するものは喫煙者,特に重喫煙者への禁煙指導とともに,喫煙者,非喫煙者に関係なくすべての勤労者に受動喫煙を避けることを心がけるよう指導することが重要である.

Decreased respiratory function associated with aging leads to the onset of chronic obstructive pulmonary disease (COPD) and increased risk of death in the elderly. Prevention of a decline in respiratory function from a young age is important. This study aimed to clarify the factors that affect decreased forced expiratory volume in one second (FEV<sub>1</sub>)/forced vital capacity (FVC), an index of obstructive respiratory disorder caused by airway obstruction, by considering the influence of body composition and lifestyle. We recruited 262 employed adult men and determined their lifestyle-related factors, including smoking status, past or current secondhand smoke (SHS) exposure, exposure to SHS outside the home, and physical activity (PA). Body composition and respiratory function were also measured. The data were then compared with those of non-smokers using logistic regression analysis, adjusting for age. We also investigated factors influencing FEV<sub>1</sub>/FVC using multiple regression analysis, adjusting for age, height, smoking status, and lifestyle. Current smokers and heavy smokers exhibited significantly lower amounts of PA and had a higher body fat%, visceral fat area, prevalence of cohabitation with smokers, and frequency of SHS exposure outside the home, and FEV<sub>1</sub>/FVC was significantly lower in heavy smokers. A multiple regression analysis revealed that FEV<sub>1</sub>/FVC was associated only with the frequency of SHS exposure outside the home. It is important for occupational health personnel of a company to advise both non-smokers and smokers to avoid SHS to prevent chronic obstructive pulmonary disease onset. This needs to be coupled with encouragement to quit smoking, especially for heavy smokers.

Journal

  • Journal of UOEH

    Journal of UOEH 41(1), 15-24, 2019

    The University of Occupational and Environmental Health, Japan

Codes

  • NII Article ID (NAID)
    130007613295
  • NII NACSIS-CAT ID (NCID)
    AN0009832X
  • Text Lang
    ENG
  • ISSN
    0387-821X
  • NDL Article ID
    029565820
  • NDL Call No.
    Z19-1000
  • Data Source
    NDL  J-STAGE 
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