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Ambient temperature and outpatient visits for acute exacerbation of chronic bronchitis in Shanghai: a time series analysis / 生物医学与环境科学(英文)
Biomedical and Environmental Sciences ; (12): 76-79, 2015.
Article in English | WPRIM | ID: wpr-264618
ABSTRACT
The association between ambient temperature and acute exacerbation of chronic bronchitis (AECB) was still unknown. Therefore, we performed an epidemiological study in a large hospital of Shanghai to explore the relationship about temperature and outpatient visit for AECB. We adopted a quasi-Poisson generalized additive models and distributed lag nonlinear models to estimate the accumulative effects of temperature on AECB across multiple days. We found significant non-linear effects of cold temperature on hospital visits for AECB, and the potential effect of cold temperature might last more than 2 weeks. The relative risks of extreme cold (first percentiles of temperature throughout the study period) and cold (10th percentile of temperature) temperature over lags 0-14 d were 2.98 [95% confidence intervals (CI) 1.77, 5.04] and 1.63 (95% CI 1.21, 2.19), compared with the 25th percentile of temperature. However, we found no positive association between hospital visits and hot weather. This study showed that exposure to both extreme cold and cold temperatures were associated with increased outpatient visits for AECB in a large hospital of Shanghai.
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Pathology / Weather / China / Epidemiology / Cold Temperature / Bronchitis, Chronic / Air Pollutants / Ambulatory Care Limits: Adolescent / Adult / Aged / Child / Child, preschool / Female / Humans / Infant / Male Country/Region as subject: Asia Language: English Journal: Biomedical and Environmental Sciences Year: 2015 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pathology / Weather / China / Epidemiology / Cold Temperature / Bronchitis, Chronic / Air Pollutants / Ambulatory Care Limits: Adolescent / Adult / Aged / Child / Child, preschool / Female / Humans / Infant / Male Country/Region as subject: Asia Language: English Journal: Biomedical and Environmental Sciences Year: 2015 Type: Article