Comparison of two multivariable models (model C and model D) to assess the role of health risk behaviours in the relationship between psychological distress and hypertension
| Multivariable model C (without health risk behaviours) | Multivariable model D (with health risk behaviours) | |||
| Adjusted OR (95% CI) | P value | Adjusted OR (95% CI) | P value | |
| Psychological distress | ||||
| No (ref) | 1 | 1 | ||
| Yes | 2.01 (1.15 to 3.54) | 0.015 | 2.04 (1.16 to 3.59) | 0.013 |
| Gender | ||||
| Male (ref) | 1 | 1 | ||
| Female | 5.57 (2.82 to 11.02) | <0.001 | 6.89 (2.71 to 17.53) | <0.001 |
| Age group | ||||
| <35 years (ref) | 1 | 1 | ||
| ≥35 years | 2.72 (1.66 to 4.45) | <0.001 | 2.67 (1.63 to 4.42) | <0.001 |
| Marital status | ||||
| Married (ref) | 1 | 1 | ||
| Never married | 0.43 (0.13 to 1.47) | 0.179 | 0.45 (0.13 to 1.53) | 0.202 |
| Separated/widowed/divorced | 1.06 (0.66 to 1.72) | 0.811 | 1.06 (0.66 to 1.73) | 0.797 |
| Level of education | ||||
| Primary and below (ref) | 1 | 1 | ||
| Secondary and above | 0.75 (0.46 to 1.22) | 0.254 | 0.76 (0.46 to 1.23) | 0.266 |
| Wealth index | ||||
| Least wealthy (ref) | 1 | 1 | ||
| Less wealthy | 1.31 (0.66 to 2.61) | 0.439 | 1.29 (0.65 to 2.57) | 0.468 |
| More wealthy | 2.13 (1.06 to 4.29) | 0.034 | 2.10 (1.04 to 4.24) | 0.038 |
| Most wealthy | 2.91 (1.26 to 6.72) | 0.012 | 2.88 (1.24 to 6.67) | 0.014 |
| Health risk behaviours | ||||
| Smoking | ||||
| No (ref) | _ | _ | 1 | |
| Yes | _ | _ | 1.41 (0.40 to 4.98) | 0.591 |
| Alcohol consumption | ||||
| No (ref) | _ | _ | 1 | |
| Yes | _ | _ | 1.49 (0.61 to 3.66) | 0.381 |
| Drug use for pleasure | ||||
| No (ref) | _ | _ | 1 | |
| Yes | _ | _ | 0.49 (0.14 to 1.75) | 0.271 |