Table 4 Comparison of the PAPS, PBS, and IFS with smoking and number of cigarette smoked/day.

From: Differences in perceived sensitivity to air pollution between smokers and non-smokers during a heavy haze episode in Northeast China

Smoke status

PAPS

PBS

IFS

Mean

SD

Mean

SD

Mean

SD

Smoker

no

0.97

0.88

0.70

0.81

0.37

0.70

yes

0.87

0.82

0.56

0.73

0.33

0.65

p

0.010

< 0.001

0.317

Number of cigarette smoked/day

0

0.97

0.88

0.70

0.81

0.37

0.70

1–9

0.93

0.86

0.65

0.82

0.33

0.65

10–19

0.81

0.77

0.55

0.70

0.33

0.66

≥ 20

0.90

0.83

0.54

0.71

0.32

0.64

p

0.008

< 0.001

0.067

  1. PAPS: perceived air pollution score; PBS: protective behavior score; IFS: irritating feeling score.
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