Table 5.
Risk Ratio estimates comparing mental illness in the study refugee sample with matched Australian-born group
| K10 abnormal (≥ 20) % (n) | K10 normal (<20) % (n) | Conditional RRa (95% CI) | |
|---|---|---|---|
| Refugee clinic sample | 50.7 (68) | 49.3 (66) | 3.16 (2.30 to 4.34) |
| Australian-born matched sample | 16.1 (86) | 83.9 (449) | |
| PTSD – yes % (n) | PTSD – no % (n) | ||
| PTSD – lifetimeb | |||
| Refugee clinic sample | 30.6 (41) | 66.4 (89) | 2.25 (1.53 to 3.29) |
| Australian-born matched sample | 13.8 (74) | 86.2 (461) | |
| PTSD – monthb | |||
| Refugee clinic sample | 22.4 (30) | 74.6 (100) | 4.44 (2.64 to 7.48) |
| Australian-born matched sample | 5.0 (27) | 95.0 (508) | |
| Abnormal K10 and/or PTSD % (n) | Normal K10 and no PTSD % (n) | ||
| K10 and/or PTSD – lifetimeb | |||
| Refugee clinic sample | 56.7 (76) | 43.3 (58) | 2.84 (2.09 to 3.87) |
| Australian-born matched sample | 26.4 (141) | 73.6 (394) | |
| K10 and/or PTSD – monthb | |||
| Refugee clinic sample | 51.5 (69) | 48.5 (65) | 2.15 (1.62 to 2.85) |
| Australian-born matched sample | 18.1 (97) | 81.9 (438) | |
Note. There were 134 refugees with matched comparisons included in this analysis. All refugees completed the K10 but 131 completed the PTSD-8
aRisk ratio (RR) is estimated from the conditional Poisson regression model, where the ‘conditional’ refers to stratum created for each matched set
bPTSD screened in the refugee sample using the PTSD-8 and classified in the Australian-born matched sample using ICD–10 criteria