Korean Journal of Family Practice
Table. 3.

Risk factors affecting heavy smoking in one-person households and multi-person households

Characteristic One-person (n=888) Multi-person (n=7,096)
OR 95% CI P-value OR 95% CI P-value
Age (y)
19–29 1.000 1.000
30–39 2.114 0.596–7.491 0.246 1.867 1.134–3.074 0.014
40–49 4.004 1.268–12.641 0.018 3.841 2.423–6.089 <0.001
50–59 3.110 0.994–9.724 0.051 3.883 2.442–6.174 <0.001
60–69 1.205 0.318–4.566 0.783 2.799 1.673–4.683 <0.001
≥70 1.099 0.284–4.257 0.892 0.785 0.367–1.679 0.532
Sex
Male 3.308 1.292–8.464 0.013 8.507 4.563–15.859 <0.001
Female 1.000 1.000
Household income
Low 0.365 0.177–0.756 0.007 1.155 0.808–1.652 0.429
Medium-low 0.596 0.268–1.327 0.205 1.243 0.931–1.658 0.140
Medium-high 0.891 0.419–1.893 0.764 1.095 0.835–1.437 0.511
High 1.000 1.000
Education
≤Elementary school 1.832 0.764–4.392 0.175 1.997 1.398–2.852 <0.001
Middle school 7.356 3.090–17.509 <0.001 2.972 2.105–4.195 <0.001
High school 3.029 1.395–6.576 0.005 1.564 1.204–2.032 0.001
≥College/university 1.000 1.000
Marital status
Married 1.000 1.000
Divorced/widowed/unmarried 0.460 0.226–0.939 0.033 0.673 0.521–0.868 0.002
Occupation
Non-manual 1.000 1.000
Manual 0.530 0.254–1.105 0.090 0.500 0.385–0.648 <0.001
Others 0.691 0.345–1.385 0.297 0.495 0.370–0.662 <0.001
Regular exercise
Yes 1.000 1.000
No 1.664 0.851–3.255 0.137 1.534 1.211–1.942 <0.001
Body weight
Underweight 1.000 1.000
Normal 0.930 0.371–2.328 0.876 1.629 1.096–2.423 0.016
Overweight 1.250 0.507–3.079 0.627 2.228 1.469–3.378 <0.001
Level of stress
None/low 1.000 1.000
Moderate/extreme 1.592 0.858–2.955 0.140 1.312 1.068–1.612 0.010
Depression
Yes 1.266 0.597–2.683 0.539 1.620 1.185–2.215 0.003
No 1.000 1.000
Alcohol
None 1.000 1.000
≤1 time/wk 0.474 0.160–1.403 0.177 0.484 0.322–0.729 0.001
>1 time/wk 0.926 0.319–2.686 0.888 0.996 0.682–1.453 0.982
Age of starting smoking (y)
≤19 6.605 1.700–25.668 0.006 2.177 1.306–3.625 0.003
20–25 3.180 0.790–12.804 0.104 1.302 0.765–2.213 0.330
≥26 1.000 1.000
Smoking period (y)
≤9 1.000 1.000
10–29 6.113 1.768–21.139 0.004 3.424 1.954–5.998 <0.001
≥30 7.107 2.043–24.725 0.002 4.618 2.630–8.110 <0.001

OR, odds ratio; CI, confidence interval.

Values are calculated by multinomial logistic regression analysis.
Korean J Fam Pract 2022;12:79~85 https://doi.org/10.21215/kjfp.2022.12.2.79
© KJFP