Table 5.
Multivariable ordinal logistic regression analysis of risk factors associated with schizophrenia based on CGI-S.
| Variables | AOR (95% CI) | p-value | Brant test p-value |
|---|---|---|---|
| Age (year) | 1.06 (1.04–1.09) | < 0.001* | 0.881 |
| Occupation | |||
| Employed | 1 | ||
| Unemployed | 4.54 (2.34–8.81) | < 0.001* | 0.678 |
| Presence of other ailmentsa | |||
| No | 1 | ||
| Yes | 2.44 (1.09–5.45) | 0.029* | 0.223 |
| Smokingb | |||
| No | 1 | ||
| Yes | 2.50 (1.27–4.94) | 0.008* | 0.695 |
| Consumption of vitamins and supplement | |||
| No | 1 | ||
| Yes | 0.38 (0.18–0.82) | 0.013* | 0.088 |
| Consumption of dairy (portions per week) | |||
| 0 to 1 | 1 | ||
| 2 to 3 | 0.61 (0.25–1.50) | 0.280 | 0.366 |
| 4 to 5 | 1.55 (0.63–3.83) | 0.343 | 0.749 |
| > 5 | 2.82 (1.37–5.81) | 0.005* | 0.613 |
Brant test with p-value ≥ 0.05 indicates that the respective variable fulfills the proportional odds assumption of the model. Ordinal Hosmer–Lemeshow test (p = 0.639) implies that the regression model is of good fit.
AOR adjusted odds ratio, CI confidence interval.
*Statistical significance (p < 0.05).
aPresence of any other chronic ailments such as hypertension, renal failure, diabetes etc.
bSmokes at least once per week.