Table 5 The effects of high and low relative humidity on COPD hospitalization in different age and gender subgroups under the cumulative lag structure.

From: Exploring the impact of three meteorological factors and their specific effect sizes on chronic obstructive pulmonary disease admission in Qingyang, China

Lag days

RR and 95% confidence intervals of low humidity (P5 = 38%)

RR and 95% confidence intervals of of high humidity (P95 = 91.2%)

Male

Female

< 65 ages

≥ 65 ages

Male

Female

< 65 ages

≥ 65 ages

lag0-1

1.148 (1.032,1.277)

1.053 (0.928,1.194)

0.968 (0.840,1.114)

1.172 (1.066,1.289)

0.991 (0.892,1.099)

0.840 (0.736,0.959)

0.975 (0.844,1.126)

0.917 (0.831,1.011)

lag0-2

1.111 (0.996,1.239)

1.065 (0.936,1.213)

0.976 (0.844,1.130)

1.149 (1.042,1.267)

0.966 (0.864,1.081)

0.789 (0.684,0.910)

0.963 (0.825,1.124)

0.862 (0.776,0.957)

lag0-3

1.082 (0.962,1.216)

1.069 (0.931,1.228)

0.999 (0.854,1.169)

1.120 (1.009,1.244)

0.958 (0.846,1.084)

0.762 (0.650,0.893)

0.964 (0.812,1.144)

0.834 (0.743,0.937)

lag0-4

1.104 (0.978,1.246)

1.068 (0.926,1.233)

1.036 (0.881,1.219)

1.129 (1.013,1.258)

0.977 (0.858,1.111)

0.759 (0.643,0.895)

0.981 (0.819,1.175)

0.846 (0.749,0.955)

lag0-5

1.168 (1.024,1.334)

1.077 (0.920,1.260)

1.088 (0.911,1.300)

1.173 (1.042,1.321)

1.005 (0.872,1.158)

0.766 (0.639,0.917)

0.998 (0.819,1.217)

0.879 (0.770,1.003)

lag0-6

1.235 (1.078,1.415)

1.110 (0.943,1.307)

1.157 (0.962,1.391)

1.231 (1.089,1.392)

1.012 (0.872,1.175)

0.766 (0.634,0.926)

0.993 (0.806,1.223)

0.900 (0.783,1.034)

lag0-7

1.278 (1.116,1.464)

1.179 (1.002,1.386)

1.244 (1.035,1.495)

1.289 (1.141,1.456)

0.981 (0.841,1.145)

0.750 (0.617,0.913)

0.953 (0.769,1.182)

0.889 (0.769,1.026)

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