Table 5.
Association between atmospheric pollutants and patients for pneumonia in different subgroups
| Subgroup | OR (95%CI) | |||
|---|---|---|---|---|
| PM2.5 | PM10 | NO2 | SO2 | |
| Gender | ||||
| Male | 1.061 (1.006,1.119) * | 1.077 (1.017,1.140) * | 1.085 (1.007,1.168) * | 1.051 (0.972,1.136) |
| Female | 1.069 (1.008,1.134) * | 1.077 (1.011,1.147) * | 1.046 (0.962,1.136) | 1.098 (1.007,1.197) * |
| Age | ||||
| 0–3 | 1.075 (1.017,1.136) * | 1.101 (1.037,1.169) a ** | 1.096 (1.012,1.187) * | 1.066 (0.986,1.153) |
| 4–13 | 1.025 (0.939,1.119) | 0.984 (0.893,1.085) | 1.035 (0.916,1.170) | 1.050 (0.916,1.205) |
| 14–59 | 1.087 (0.991,1.191) | 1.104 (1.002,1.217) * | 1.062 (0.942,1.198) | 1.120 (0.973,1.288) |
| 60+ | 1.072 (0.945,1.217) | 1.121 (0.989,1.271) | 1.029 (0.870,1.217) | 1.077 (0.902,1.285) |
| Season | ||||
| Warm | 0.985 (0.871,1.115) | 1.001 (0.909,1.102) | 0.946 (0.830,1.078) | 0.985 (0.803,1.207) |
| Cold | 1.072 (1.028,1.118) ** | 1.095 (1.043,1.149) *** | 1.098 (1.033,1.168) b ** | 1.086 (1.022,1.153) ** |
| Visit types | ||||
| outpatients | 1.080 (1.020,1.143) ** | 1.092 (1.028,1.161) ** | 1.063 (0.982,1.150) | 1.074 (0.984,1.173) |
| inpatients | 1.050 (0.994,1.109) | 1.063 (1.002,1.127) * | 1.070 (0.991,1.156) | 1.069 (0.990,1.154) |
Note: All conditional logistic models were adjusted for temperature, relative humidity, and air pressure. The concentration of each pollutant increases in interquartile intervals
aEffects of atmospheric pollutants significantly differ in 0–3 and 4-13 years old children; b Effects of atmospheric pollutants significantly differ in warm seasons and cold seasons
*P < 0.05; ** P < 0.01; *** P < 0.001