Table 3.
Final logistic regression models showing sociodemographic characteristics associated with psychological distress (backward elimination approach)
| aOR (95% CI) | p value | |
|---|---|---|
| Depressiona | ||
| Body mass index | ||
| Underweight | 2.62 (1.32–5.20) | 0.006 |
| Overweight/obese | 1.65 (1.08–2.54) | 0.022 |
| NormalR | 1 | |
| Comorbidity | ||
| Present | 2.25 (1.35–3.75) | 0.002 |
| AbsentR | 1 | |
| Soft drink consumption | ||
| > Once/week | 1.90 (1.17–3.07) | 0.009 |
| ≤ Once/weekR | 1 | |
| Anxietyb | ||
| Age (years) | ||
| ≤ 20 | 1.52 (1.04–2.22) | 0.029 |
| > 20R | 1 | |
| Body mass index | ||
| Underweight | 2.07 (1.08–3.96) | 0.029 |
| Overweight/obese | 1.02 (0.68–1.54) | 0.913 |
| NormalR | 1 | |
| Comorbidity | ||
| Present | 2.89 (1.76–4.72) | 0.000 |
| AbsentR | 1 | |
| Soft drink consumption | ||
| > Once/week | 1.79 (1.11–2.89) | 0.016 |
| ≤ Once/weekR | 1 | |
| Screen time/day | ||
| ≥ 12 h | 1.85 (1.03–3.33) | 0.040 |
| 6–12 h | 1.32 (0.77–2.27) | 0.310 |
| < 6 hoursR | 1 | |
| Stressc | ||
| Body mass index | ||
| Underweight | 3.11 (1.28–7.54) | 0.012 |
| Overweight/obese | 1.70 (0.88–3.28) | 0.111 |
| NormalR | 1 | |
| Soft drink consumption | ||
| > Once/week | 2.29 (1.23–4.27) | 0.009 |
| ≤ Once/weekR | 1 | |
| Any mental health outcomed | ||
| Age (years) | ||
| ≤ 20 | 1.42 (1.01–2.02) | 0.047 |
| > 20 R | 1 | |
| Body mass index | ||
| Underweight | 2.02 (1.07–3.80) | 0.030 |
| Overweight/Obese | 1.41 (0.96–2.06) | 0.076 |
| NormalR | 1 | |
| Comorbidity | ||
| Present | 2.75 (1.69–4.46) | 0.000 |
| AbsentR | 1 | |
| Soft drink consumption | ||
| > Once/week | 1.74 (1.10–2.74) | 0.018 |
| ≤ Once/weekR | 1 | |
| Screen time/day | ||
| ≥ 12 h | 1.77 (1.03–3.03) | 0.038 |
| 6–12 h | 1.28 (0.78–2.08) | 0.326 |
| < 6 hoursR | 1 | |
Classification tables report that 73.3%, 73.6%, 90.3%, 66.0% of the cases can be expected to be classified correctly by the models respectively
aOR adjusted odds ratio, CI confidence interval, R reference category
aModel χ2 statistic = 37.755 (p < 0.001), Hosmer–Lemeshow p value = 0.414
bModel χ2 statistic = 38.209 (p < 0.001), Hosmer–Lemeshow p value = 0.486
cModel χ2 statistic = 13.221 (p = 0.004), Hosmer–Lemeshow p value = 0.332
dModel χ2 statistic = 38.642 (p < 0.001), Hosmer–Lemeshow p value = 0.963 show that the models fit and support the existence of the relationship between the independent variables and dependent variables