Table 3.
Results of logistic regression analysis of the impact of partners’ risky health behaviors on risky health behaviors among Korean women aged 19 or over
| Variables | Age (y) | Total (n) | Participant’s behavior, n (%) | Crude OR (95% CI)1 | Adjusted OR (95% CI)1 | p-value for interaction2 |
|---|---|---|---|---|---|---|
| Smoking | ||||||
| Overall | <19 | 64 971 | 1095 (1.7) | 5.07 (4.32, 5.95) | 4.65 (3.93, 5.49) | 0.01 |
| Stratified | 19–29 | 1804 | 78 (4.3) | 5.47 (4.44, 6.72) | 5.38 (4.20, 6.89) | |
| 30–49 | 26 165 | 504 (1.9) | 5.44 (4.27, 6.94) | 5.20 (4.06, 6.65) | ||
| 50–64 | 23 026 | 379 (1.6) | 3.51 (2.76, 4.47) | 3.45 (2.70, 4.41) | ||
| ≥65 | 13 976 | 134 (1.0) | 7.86 (5.35, 11.53) | 8.15 (5.50, 12.09) | ||
| Excessivedrinking | ||||||
| Overall | <19 | 64 971 | 16 429 (25.3) | 2.58 (2.47, 2.70) | 1.89 (1.80, 1.98) | 0.55 |
| Stratified | 19–29 | 1804 | 734 (40.7) | 1.88 (1.64, 2.17) | 1.90 (1.64, 2.20) | |
| 30–49 | 26 165 | 10 267 (39.2) | 1.94 (1.82, 2.06) | 1.94 (1.82, 2.06) | ||
| 50–64 | 23 026 | 4712 (20.5) | 1.85 (1.71, 2.00) | 1.81 (1.67, 1.96) | ||
| ≥65 | 13 976 | 716 (5.1) | 1.79 (1.50, 2.15) | 1.77 (1.48, 2.12) | ||
| Eats salty food | ||||||
| Overall | <19 | 64 971 | 12 308 (18.9) | 2.56 (2.43, 2.70) | 2.48 (2.36, 2.62) | <0.01 |
| Stratified | 19–29 | 1804 | 509 (28.2) | 2.18 (1.91, 2.49) | 2.22 (1.94, 2.54) | |
| 30–49 | 26 165 | 4688 (17.9) | 2.23 (2.07, 2.40) | 2.23 (2.07, 2.40) | ||
| 50-64 | 23 026 | 3836 (16.7) | 2.70 (2.48, 2.95) | 2.64 (2.42, 2.88) | ||
| ≥65 | 13 976 | 3275 (23.4) | 3.33 (3.04, 3.64) | 3.29 (3.00, 3.59) | ||
| Inactive lifestyle | ||||||
| Overall | <19 | 64 971 | 37 170 (57.2) | 2.66 (2.56, 2.77) | 2.56 (2.45, 2.66) | <0.01 |
| Stratified | 19–29 | 1804 | 1130 (62.6) | 2.29 (2.01, 2.59) | 2.29 (2.01, 2.60) | |
| 30–49 | 26 165 | 14 335 (54.8) | 2.27 (2.14, 2.41) | 2.24 (2.12, 2.37) | ||
| 50–64 | 23 026 | 12 681 (55.1) | 2.88 (2.70, 3.08) | 2.80 (2.63, 2.99) | ||
| ≥65 | 13 976 | 9024 (64.6) | 3.70 (3.41, 4.00) | 3.53 (3.26, 3.83) |
OR, odds ratio; CI, confidence interval.
Crude model: Y-X, adjusted model: Y-X+Z, where Y=the participant’s risky health behavior, X=whether the partner had the risky health behavior, and Z=potential confounding factors including age (only in the overall models), occupation, household income, and past medical history (hypertension, diabetes mellitus, hyperlipidemia). See the Methods section for more details.
p-values were obtained from the overall models for the interaction between age and the respective health behavior. Interaction model: Y-X+Age+ Z+X×Age, where Y=the participant’s risky health behavior, X=whether the partner had the risky health behavior, Age = the participant’s age group, Z=potential confounding factors including occupation, household income, and past medical history (hypertension, diabetes mellitus, hyperlipidemia), and X×Age=the interaction between age and the respective health behavior.