title: Factors associated with the annual change in forced expiratory volume in 1 second of officially acknowledged victims of pollution-related illness in improved environments: a longitudinal study.
abstract: [Purpose] We examined factors affecting annual change in pulmonary function in residents previously exposed to air pollution in an area where pollution has been reduced and a long time period has elapsed. [Subjects and Methods] Data of 730 officially acknowledged victims of pollution-related illness from an annual survey during 2000 to 2009 were analyzed. The primary outcome was forced expiratory volume in 1 second (FEV1), along with factors such as age, body composition, smoking habits, respiratory symptoms, and classification of medical management (an index of the need for treatment). Multiple regression analyses were used to identify factors associated with the annual change in FEV1. [Results] Three significant factors were identified: smoking habit, classification of medical management, and gender. Smoking habits and classification of medical management had stronger effects on the annual change in FEV1 than gender. [Conclusion] With an improved environment, continuation of smoking accelerates the decline in FEV1.
authors.affiliation: Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, Japan ; Department of Rehabilitation Medicine, Nagasaki University Hospital, Japan.
authors.forename: Yudai
authors.initials: Y
authors.lastname: Yano
authors.affiliation: Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, Japan.
authors.forename: Hideaki
authors.initials: H
authors.lastname: Senjyu
authors.affiliation: Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, Japan.
authors.forename: Takako
authors.initials: T
authors.lastname: Tanaka
authors.affiliation: Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, Japan.
authors.forename: Masaharu
authors.initials: M
authors.lastname: Asai
authors.affiliation: Department of Rehabilitation Medicine, Seirei Mikatahara General Hospital, Japan.
authors.forename: Yorihide
authors.initials: Y
authors.lastname: Yanagita
authors.affiliation: Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Nishinakagawa
authors.affiliation: Department of Physical Therapy, Faculty of Health Science, Kio University, Japan.
authors.forename: Naomi
authors.initials: N
authors.lastname: Miyamoto
authors.affiliation: Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Kotaki
authors.affiliation: Department of Rehabilitation Medicine, Nagasaki University Hospital, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Kozu
authors.affiliation: Department of Cardiopulmonary Rehabilitation Science, Nagasaki University Graduate School of Biomedical Science, Japan.
authors.forename: Sumihisa
authors.initials: S
authors.lastname: Honda
keywords: Air pollution-related illness; Longitudinal study; Pulmonary function