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Cluster analysis grouping.
| Variables | 1 | 2 | 3 | 4 | P-value |
|---|---|---|---|---|---|
| Number/percentage (%) | 367 (36.9) | 342 (34.4) | 223 (22.4) | 62 (6.2) | |
| PHQ-9 M (SD) | 2.4 (3.0) | 5.4 (3.4) | 9.0 (3.9) | 15.1 (5.2) | <0.001 |
| GAD-7 M (SD) | 1.5 (2.4) | 4.6 (2.9) | 8.2 (3.6) | 15.1 (4.3) | <0.001 |
| ISI M (SD) | 2.8 (3.0) | 6.0 (4.0) | 10.4 (4.8) | 15.6 (5.2) | <0.001 |
| IES-R M (SD) | 6.1 (4.4) | 22.9 (4.8) | 39.9 (5.4) | 60.0 (9.8) | <0.001 |
