Table 4 The effects of temperature decrease on RA admission at various lag days in Hefei, China, with 25th percentile of temperature relative to 50th percentile

Total

1.057 (1.005–1.111)*

1.044 (1.019–1.069)*

1.024 (0.986–1.064)

0.995 (0.971–1.019)

0.960 (0.913–1.010)

Male

0.994 (0.912–1.083)

1.000 (0.960–1.042)

1.007 (0.944–1.075)

1.017 (0.976–1.060)

1.028 (0.943–1.120)

1.069 (1.022–1.118)*

1.030 (1.008–1.052)*

0.999 (0.966–1.034)

0.983 (0.962–1.004)

0.974 (0.931–1.019)

0–17 years

1.040 (0.662–1.633)

1.098 (0.890–1.354)

1.111 (0.795–1.552)

1.048 (0.842–1.304)

0.947 (0.609–1.473)

18–40 years

1.017 (0.924–1.119)

1.012 (0.967–1.059)

1.009 (0.938–1.085)

1.008 (0.963–1.056)

1.009 (0.917–1.112)

41–65 years

1.056 (1.005–1.110)*

1.031 (1.007–1.056)*

1.009 (0.971–1.048)

0.991 (0.967–1.015)

0.975 (0.928–1.025)

≥66 years

1.083 (0.990–1.186)

1.001 (0.960–1.048)

0.956 (0.892–1.023)

0.964 (0.923–1.006)

1.004 (0.917–1.099)