a decreasing trendp<0.05
Conversely, hospital visits showed a decreasing trend from lag0 (RR, 1.02; 95% CI, 0.92-1.23) to lag5 (RR, 0.72; 95% CI, 0.65-0.80; p<0.05) for misty days, and there was a significantly lower number of hospital visits at lag5 for foggy days (RR, 0.85; 95% CI, 0.75-0.97; p<0.05).