Table 3.
Subgroup analysis associations between dinner companions and body mass index stratified by covariates.
| Variables | Obesity | Overweight | Underweight | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dinner Companion | Dinner Companion | Dinner Companion | |||||||||||||
| With Family | With Others | Alone | With Family | With Others | Alone | With Family | With Others | Alone | |||||||
| OR | OR | 95% CI | OR | 95% CI | OR | OR | 95% CI | OR | 95% CI | OR | OR | 95% CI | OR | 95% CI | |
| Breakfast Companion | |||||||||||||||
| With Family | 1.00 | 1.23 | (0.97–1.57) | 1.38 * | (1.14–1.67) | 1.00 | 0.89 | (0.68–1.18) | 1.08 | (0.88–1.32) | 1.00 | 1.11 | (0.65–1.87) | 0.67 | (0.39–1.16) |
| With Others | 1.00 | 1.40 | (0.87–2.26) | 1.04 | (0.53–2.04) | 1.00 | 1.05 | (0.58–1.89) | 0.58 | (0.24–1.41) | 1.00 | 0.87 | (0.29–2.59) | 0.08 | (0.00–1.58) |
| Alone | 1.00 | 1.13 | (0.96–1.34) | 1.03 | (0.91–1.17) | 1.00 | 1.10 | (0.92–1.32) | 1.15 * | (1.00–1.32) | 1.00 | 0.80 | (0.56–1.13) | 0.68 * | (0.51–0.90) |
| Frequency of Heavy Drinking | |||||||||||||||
| None | 1.00 | 1.14 | (0.92–1.42) | 1.10 | (0.97–1.24) | 1.00 | 0.99 | (0.78–1.27) | 1.07 | (0.93–1.24) | 1.00 | 0.88 | (0.59–1.30) | 0.76 | (0.57–1.00) |
| Once a month | 1.00 | 1.18 | (0.94–1.47) | 1.21 | (0.98–1.49) | 1.00 | 1.11 | (0.87–1.41) | 1.18 | (0.97–1.45) | 1.00 | 0.70 | (0.44–1.11) | 0.42 * | (0.25–0.69) |
| Once a week | 1.00 | 1.24 | (0.95–1.62) | 1.16 | (0.90–1.49) | 1.00 | 0.98 | (0.72–1.32) | 1.15 | (0.86–1.53) | 1.00 | 1.64 | (0.85–3.16) | 1.18 | (0.59–2.36) |
| Number of Days of Muscular Exercise | |||||||||||||||
| None | 1.00 | 1.18 * | (1.01–1.37) | 1.07 | (0.95–1.20) | 1.00 | 0.97 | (0.81–1.15) | 1.12 * | (1.00–1.27) | 1.00 | 0.95 | (0.71–1.29) | 0.68 * | (0.52–0.87) |
| 1–2 | 1.00 | 1.08 | (0.74–1.59) | 1.58 * | (1.13–2.20) | 1.00 | 1.13 | (0.73–1.74) | 1.17 | (0.81–1.70) | 1.00 | 0.68 | (0.31–1.48) | 0.91 | (0.46–1.78) |
| 3–4 | 1.00 | 0.97 | (0.63–1.50) | 0.88 | (0.61–1.27) | 1.00 | 1.10 | (0.71–1.71) | 0.89 | (0.59–1.35) | 1.00 | 0.48 | (0.15–1.47) | 0.40 | (0.13–1.23) |
| ≥5 | 1.00 | 1.68 * | (1.02–2.77) | 2.20 * | (1.50–3.22) | 1.00 | 1.11 | (0.64–1.90) | 1.17 | (0.77–1.78) | 1.00 | 0.21 | (0.03–1.71) | 0.67 | (0.22–2.00) |
| Self-Reported Health Status | |||||||||||||||
| High | 1.00 | 1.02 | (0.81–1.29) | 1.28 * | (1.04–1.57) | 1.00 | 1.00 | (0.79–1.28) | 1.17 | (0.95–1.45) | 1.00 | 0.72 | (0.45–1.15) | 0.51 * | (0.30–0.87) |
| Middle | 1.00 | 1.33 * | (1.11–1.60) | 1.18 * | (1.03–1.35) | 1.00 | 1.08 | (0.89–1.33) | 1.18 * | (1.02–1.36) | 1.00 | 0.92 | (0.62–1.38) | 0.70 * | (0.50–0.97) |
| Low | 1.00 | 1.13 | (0.78–1.65) | 0.89 | (0.71–1.12) | 1.00 | 0.89 | (0.56–1.43) | 0.83 | (0.63–1.08) | 1.00 | 1.14 | (0.60–2.15) | 0.73 | (0.47-1.14) |
| Eating Out Rate | |||||||||||||||
| Everyday | 1.00 | 1.14 | (0.95–1.37) | 1.09 | (0.86–1.37) | 1.00 | 0.98 | (0.79–1.20) | 1.04 | (0.81–1.34) | 1.00 | 0.78 | (0.52–1.17) | 0.54 * | (0.32–0.92) |
| 3–6 times per week | 1.00 | 1.26 * | (1.01–1.58) | 1.21 * | (1.04–1.40) | 1.00 | 1.04 | (0.81–1.34) | 1.12 | (0.96–1.30) | 1.00 | 0.98 | (0.62–1.54) | 0.87 | (0.64–1.20) |
| None | 1.00 | 0.89 | (0.56–1.42) | 1.03 | (0.85–1.24) | 1.00 | 1.31 | (0.76–2.24) | 1.12 | (0.91–1.38) | 1.00 | 0.90 | (0.30–2.69) | 0.49 * | (0.33–0.72) |
Statistically significant was marked as *. Abbreviations: OR = Odds Ratios, CI = confidence intervals.