Eun-Jung Jo1, Woo-Seop Lee2, Hyun-Young Jo3, Chang-Hoon Kim4, Jung-Seop Eom1, Jeong-Ha Mok1, Mi-Hyun Kim1, Kwangha Lee1, Ki-Uk Kim1, Min-Ki Lee1, Hye-Kyung Park5. 1. Department of Internal Medicine, Pusan National University School of Medicine, Busan, South Korea; Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea. 2. Climate Research Department, APEC Climate Center, Busan, South Korea. 3. Climate Research Department, APEC Climate Center, Busan, South Korea; Department of Atmospheric Sciences, Pusan National University, Busan, South Korea. 4. Department of Preventive Medicine, Pusan National University School of Medicine, Busan, South Korea. 5. Department of Internal Medicine, Pusan National University School of Medicine, Busan, South Korea; Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea. Electronic address: parkhk@pusan.ac.kr.
Abstract
BACKGROUND: Both air pollution and weather impact hospitalization for respiratory diseases. However, few studies have investigated the contribution of weather to hospitalization related to the adverse effects of air pollution. This study analyzed the effects of particulate matter (PM) on daily respiratory-related hospital admissions, taking into account meteorological factors. METHODS: Daily hospital admissions for respiratory diseases (acute bronchitis, allergic rhinitis, and asthma) between 2007 and 2010 were extracted from the National Health Insurance Corporation, Korea. Patients were divided into three age-based groups (0-15, 16-64, and ≥65 years). PM levels were obtained from 19 monitoring stations in Busan. RESULTS: The mean number of patients admitted for acute bronchitis, allergic rhinitis, and asthma was 5.8 ± 11.9, 4.4 ± 6.1, and 3.3 ± 3.3, respectively. During that time, the daily mean PM10 and PM2.5 concentrations were 49.6 ± 20.5 and 24.2 ± 10.9 μg/m3, respectively. The mean temperature anomaly was 7.0 ± 2.3 °C; the relative humidity was 62.0 ± 18.0%. Hospital admission rates for respiratory diseases increased with increasing PM and temperature, and with decreasing relative humidity. A multivariate analysis including PM, temperature anomaly, relative humidity, and age showed a significant increase in respiratory-related admissions with increasing PM levels and a decreasing relative humidity. Higher PM2.5 levels had a greater effect on respiratory-related hospital admission than did PM10 levels. Children and the elderly were the most susceptible to hospital admission for respiratory disease. CONCLUSIONS: PM levels and meteorological factors impacted hospitalization for respiratory diseases, especially in children and the elderly. The effect of PM on respiratory diseases increased as the relative humidity decreased.
BACKGROUND: Both air pollution and weather impact hospitalization for respiratory diseases. However, few studies have investigated the contribution of weather to hospitalization related to the adverse effects of air pollution. This study analyzed the effects of particulate matter (PM) on daily respiratory-related hospital admissions, taking into account meteorological factors. METHODS: Daily hospital admissions for respiratory diseases (acute bronchitis, allergic rhinitis, and asthma) between 2007 and 2010 were extracted from the National Health Insurance Corporation, Korea. Patients were divided into three age-based groups (0-15, 16-64, and ≥65 years). PM levels were obtained from 19 monitoring stations in Busan. RESULTS: The mean number of patients admitted for acute bronchitis, allergic rhinitis, and asthma was 5.8 ± 11.9, 4.4 ± 6.1, and 3.3 ± 3.3, respectively. During that time, the daily mean PM10 and PM2.5 concentrations were 49.6 ± 20.5 and 24.2 ± 10.9 μg/m3, respectively. The mean temperature anomaly was 7.0 ± 2.3 °C; the relative humidity was 62.0 ± 18.0%. Hospital admission rates for respiratory diseases increased with increasing PM and temperature, and with decreasing relative humidity. A multivariate analysis including PM, temperature anomaly, relative humidity, and age showed a significant increase in respiratory-related admissions with increasing PM levels and a decreasing relative humidity. Higher PM2.5 levels had a greater effect on respiratory-related hospital admission than did PM10 levels. Children and the elderly were the most susceptible to hospital admission for respiratory disease. CONCLUSIONS: PM levels and meteorological factors impacted hospitalization for respiratory diseases, especially in children and the elderly. The effect of PM on respiratory diseases increased as the relative humidity decreased.
Authors: Sonali Bose; Karina Romero; Kevin J Psoter; Frank C Curriero; Chen Chen; Caroline M Johnson; Deepak Kaji; Patrick N Breysse; D'Ann L Williams; Murugappan Ramanathan; William Checkley; Nadia N Hansel Journal: PLoS One Date: 2018-03-21 Impact factor: 3.240
Authors: Ruo-Ling Li; Yung-Chyuan Ho; Ci-Wen Luo; Shiuan-Shinn Lee; Yu-Hsiang Kuan Journal: Int J Environ Res Public Health Date: 2019-09-11 Impact factor: 3.390