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Table 4 q values for different air pollutant factors and smoking rates in north and south China

From: Spatial association between outdoor air pollution and lung cancer incidence in China

  PM2.5 PM10 SO2 NO2 O3 CO Smoking
North
 Male 0.083 0.070 0.093 0.036 0.083 0.065 0.143*
 Female 0.153 0.034 0.154* 0.107 0.056 0.156
South
 Male 0.243** 0.210 0.140** 0.199** 0.314** 0.230** 0.129*
 Female 0.110* 0.101* 0.098 0.103 0.071 0.113*
  1. Note: ** 1% level of statistical significance; * 5% level of statistical significance