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Table 3 a. Odds ratios of asthma exacerbation for exposure days to PM2.5. b. Odds ratios of asthma exacerbation for exposure days toPM10

From: Effects of particulate matter (PM) on childhood asthma exacerbation and control in Xiamen, China

Variable OR Standardized OR %increase Standardized 95%CI P-value
One-week-model
PM2.5 Exposure (day) 1.047 1.091 9.10 [1.029, 1.157] 0.003**
Temperature (°C) 1.009 1.049 4.89 [0.994, 1.106] 0.079
Precipitation(mm) 1.003 1.020 1.96 [0.975, 1.066] 0.397
Wind Speed(m/s) 0.943 0.966 −3.44 [0.922, 1.011] 0.137
Fever 19.287 2.401 140.15 [2.208, 2.612] < 0.001***
Two-week-model
PM2.5 Exposure(day) 1.049 1.161 16.06 [1.084, 1.243] < 0.001***
Temperature (°C) 1.022 1.125 12.52 [1.056, 1.199] < 0.001***
Precipitation(mm) 0.997 0.984 −1.57 [0.941, 1.030] 0.492
Wind Speed(m/s) 0.958 0.979 −2.08 [0.935, 1.025] 0.370
Fever 19.291 2.402 140.16 [2.208, 2.612] < 0.001***
One-week-model
PM10 Exposure(day) 1.031 1.071 7.12 [1.013, 1.132] 0.015*
Temperature (°C) 1.006 1.035 3.53 [0.984, 1.090] 0.184
Precipitation(mm) 1.004 1.024 2.40 [0.977, 1.073] 0.323
Wind Speed(m/s) 0.918 0.950 −5.01 [0.909, 0.992] 0.021*
Fever 19.291 2.402 140.16 [2.208, 2.612] < 0.001***
Two-week-model
PM10 Exposure(day) 1.027 1.106 10.64 [1.042, 1.175] < 0.001***
Temperature (°C) 1.014 1.079 7.93 [1.020, 1.142] 0.008**
Precipitation(mm) 0.997 0.989 −1.15 [0.943, 1.036] 0.633
Wind Speed(m/s) 0.907 0.954 −4.65 [0.913, 0.996] 0.033*
Fever 19.276 2.401 140.11 [2.208, 2.611] < 0.001***
  1. *P < 0.05, **P < 0.01, *** P < 0.001