Table 2 Relative risks of non-accidental mortality due to cold spells stratified by sex, age, and educational level.(“Low” represents junior high school and below, and “High” represents high school and higher)

Sex

 Male

1.195(1.168,1.222)

2.102(1.878,2.353)

1.802(1.511,2.150)

1.904(1.514,2.395)

 Female

1.005(0.982,1.028)

1.063(0.948,1.192)

1.106(0.929,1.317)

1.011(0.808,1.265)

Age(years)

  ≥ 65

1.160(1.137,1.185)

1.905(1.716,2.116)

1.727(1.465,2.035)

1.757(1.420,2.173)

 0–64

1.008(0.980,1.035)

1.020(0.891,1.167)

0.981(0.799,1.204)

0.931(0.715,1.211)

Education level

 Low

1.136(1.115,1.157)

1.727(1.572,1.897)

1.566(1.353,1.813)

1.564(1.295,1.889)

 High

1.022(0.984,1.061)

1.097(0.909,1.324)

1.078(0.809,1.437)

1.079(0.741,1.571)