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Table 2 Demographic characteristics by categories of self-reported stress

From: Gender differences in the association between self-reported stress and cigarette smoking in Korean adolescents

 

Total

Stress

p for trend

Low

Medium

High

Very high

Whole sample

 Number of day cigarette smoked per month, d (95 % CI)

1.40 (1.22–1.58)

0.77 (0.44–1.10)

1.19 (0.97–1.41)

1.94 (1.49–2.39)

3.68 (2.22–5.13)

<0.001

 Number of cigarette smoked per day, cigs (95 % CI)

0.63 (0.52–0.75)

0.40 (0.10–0.71)

0.51 (0.38–0.64)

0.85 (0.59–1.10)

2.08 (1.07–3.10)

<0.001

Girls

 Number of day cigarette smoked per month, d (95 % CI)

0.64 (0.46–0.82)

0.35 (0.01–0.70)

0.42 (0.23–0.61)

0.91 (0.48–1.34)

2.72 (1.07–4.37)

<0.001

 Number of cigarette smoked per day, cigs (95 % CI)

0.27 (0.18–0.36)

0.09 (0.01–0.18)

0.15 (0.08–0.21)

0.36 (0.17–0.55)

1.69 (0.39–2.98)

<0.001

Boys

 Number of day cigarette smoked per month, d (95 % CI)

2.08 (1.78–2.38)

1.07 (0.56–1.58)

1.85 (1.48–2.22)

3.08 (2.28–3.88)

4.91 (2.34–7.49)

<0.001

 Number of cigarette smoked per day, cigs (95 % CI)

0.97 (0.77–1.16)

0.62 (0.11–1.14)

0.82 (0.59–1.05)

1.39 (0.90–1.88)

2.59 (0.95–4.24)

0.001

  1. CI confidence interval