TY - JOUR
T1 - Effects of diurnal temperature range on cardiovascular and respiratory hospital admissions in Korea
AU - Lim, Youn-Hee
AU - Hong, Yun-Chul
AU - Kim, Ho
N1 - Copyright © 2012 Elsevier B.V. All rights reserved.
PY - 2012/2/15
Y1 - 2012/2/15
N2 - The effects of heat and cold waves have been studied as risk factors for cardiovascular and respiratory diseases. However, few studies have examined the effect of diurnal temperature changes on health. We hypothesized that the diurnal temperature range (DTR) may affect the rate of hospital admissions for cardiovascular- and respiratory-related diseases, and therefore investigated the risk of hospital admissions of cardiovascular (stroke, myocardial infarction, ischemic heart disease, cardiac failure, cardiac disease, and arrhythmia) and respiratory (asthma, chronic obstructive pulmonary disease, and pneumonia) diseases attributable to DTR in four metropolitan areas in Korea during 2003-2006. The area-combined effects of DTR on some cardiovascular and respiratory diseases were significantly increased by an increment of DTR. In particular, the effects on cardiac failure and asthma were significant with the percentage change of hospital admissions per 1 °C increment of DTR at 3.0% (95% CI, 1.4-4.6) and 1.1% (95% CI, 0.1-2.0), respectively, among 9 diseases. For those 75 years and older, the DTR effect on asthma admissions was greater than in those aged under 75 years. These results support the hypothesis of a positive association between DTR and cardiovascular and respiratory hospital admission.
AB - The effects of heat and cold waves have been studied as risk factors for cardiovascular and respiratory diseases. However, few studies have examined the effect of diurnal temperature changes on health. We hypothesized that the diurnal temperature range (DTR) may affect the rate of hospital admissions for cardiovascular- and respiratory-related diseases, and therefore investigated the risk of hospital admissions of cardiovascular (stroke, myocardial infarction, ischemic heart disease, cardiac failure, cardiac disease, and arrhythmia) and respiratory (asthma, chronic obstructive pulmonary disease, and pneumonia) diseases attributable to DTR in four metropolitan areas in Korea during 2003-2006. The area-combined effects of DTR on some cardiovascular and respiratory diseases were significantly increased by an increment of DTR. In particular, the effects on cardiac failure and asthma were significant with the percentage change of hospital admissions per 1 °C increment of DTR at 3.0% (95% CI, 1.4-4.6) and 1.1% (95% CI, 0.1-2.0), respectively, among 9 diseases. For those 75 years and older, the DTR effect on asthma admissions was greater than in those aged under 75 years. These results support the hypothesis of a positive association between DTR and cardiovascular and respiratory hospital admission.
KW - Aged
KW - Cardiovascular Diseases/epidemiology
KW - Case-Control Studies
KW - Cross-Over Studies
KW - Female
KW - Hospitalization/statistics & numerical data
KW - Humans
KW - Linear Models
KW - Male
KW - Poisson Distribution
KW - Republic of Korea/epidemiology
KW - Respiration Disorders/epidemiology
KW - Temperature
U2 - 10.1016/j.scitotenv.2011.12.048
DO - 10.1016/j.scitotenv.2011.12.048
M3 - Journal article
C2 - 22281041
SN - 0048-9697
VL - 417-418
SP - 55
EP - 60
JO - The Science of the Total Environment
JF - The Science of the Total Environment
ER -
