Table 3.
Odds of mental illness and current suicidality controlling for previous diagnosis of depression
| Depressed group, n | Moderate mental illness, n (%) | Moderate mental illness, AOR (95% CI) | Suicidality, n (%) |
Suicidality, AOR (95% CI) |
|
| 18–64 years | |||||
| Not depressed | 189 | 11 (6) | 1 | 13 (7) | 1 |
| Prototypic depression | 69 | 54 (78) | 51.35*** (21.94 to 120.18) | 42 (61) | 18.76*** (8.86 to 39.72) |
| Externalised depression | 49 | 10 (20) | 4.09** (1.60 to 10.47) | 9 (18) | 2.99 * (1.19 to 7.50) |
| Mixed depression | 186 | 162 (87) | 91.35*** (43.00 to 194.06) | 136 (73) | 31.97*** (16.51 to 61.90) |
| 65+ years | |||||
| Not depressed | 308 | 5 (2) | 1 | 19 (6) | 1 |
| Prototypic depression | 20 | 8 (40) | 29.66*** (8.17 to 107.67) | 8 (40) | 8.14*** (2.89 to 22.97) |
| Externalised depression | 41 | 4 (10) | 5.37* (1.36 to 21.26) | 10 (24) | 4.34*** (1.83 to 10.29) |
| Mixed depression | 54 | 36 (67) | 105.05*** (36.48 to 302.50) | 41 (76) | 42.69*** (19.47 to 93.61) |
Total N=916 due to four respondents not reporting previous depression diagnosis. OR for previous depression diagnosis not shown. Moderate mental illness defined as K10 ≥ 25. Suicidality defined as ≥ 1 on PHQ-9 item 9. Externalised depression, PHQ-9 < 10 and MDRS-7 > 5; Mixed depression, PHQ-9 ≥ 10 and MDRS-7 > 5; Not depressed, PHQ-9 < 10 and MDRS-7 ≤ 5; Prototypic depression, PHQ-9 ≥ 10 and MDRS-7 ≤ 5.
***p<0.001, **p<0.01, *p<0.05.
AOR, adjusted odds ratio.