Short-term Outdoor Temperature Change and Emergency Department Visits for Asthma Among Children: A Case-Crossover Study

摘要: Although weather changes are known to cause asthma symptoms, their impact on asthma-related health-care utilization is poorly understood. The objective of the present study was determine association between short-term outdoor temperature change and emergency department (ED) visits among children 3-18 years age in Detroit, Michigan, 2000-2001. Descriptive analyses patient ED visit characteristics were performed. A case-crossover utilizing time-stratified controls conducted maximum rate measured during 4-, 8-, 12-, 24-hour periods. Multivariable conditional logistic regression demonstrated relation after controlling for other pollutant measures. There 4,804 period, they occurred most frequently fall morning hours. showed a statistically significant inverse adjustment climatic factors (for change, odds ratio = 0.992, P 0.04; rate, 0.972, 0.01). persisted air measures added model, although not significant. Despite finding that greater decreased risk visits, overall results suggested negligible with change.