Table 2. Demographic characteristics of empirically clustered groups.
| CIQ (n=138) | DIQ (n=239) | PIQ (n=157) | HC (n=635) | F/χ2 | P | CIQ<DIQ (p) | CIQ<PIQ (p) | DIQ<PIQ (p) | CIQ<HC (p) | DIQ<HC (p) | PIQ<HC (p) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age (years) | 38.4 (9.7) | 38.1 (10.1) | 41.5 (11.4) | 41.9 (13.5) | 7.65 | <0.001 | 0.808 | 0.029 | 0.006 | 0.002 | <0.001 | 0.700 |
| Education (years) | 10.9 (2.4) | 13.2 (2.4) | 14.2 (2.8) | 15.1 (3.1) | 95.87 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 |
| Age of onset | 23.2 (6.6) | 22.7 (6.1) | 24.4 (6.9) | 3.44 | 0.033 | 0.395 | 0.128 | 0.009 | ||||
| Illness duration | 15.2 (9.5) | 15.5 (9.5) | 17.1 (10.7) | 1.81 | 0.165 | 0.794 | 0.093 | 0.101 | ||||
| Gender (M/F) | 73.2%/26.8% | 66.1%/33.9% | 61.1%/38.9% | 44.7%/55.3% | 59.72 | <0.001 | 0.094 | 0.019 | 0.184 | <0.001 | <0.001 | <0.001 |
Abbreviations: CIQ, compromised group; DIQ, deteriorated group; F, female; HC, healthy control group; M, male; PIQ, preserved group.
Means provided with s.d. in parentheses with the exception of gender for which percentages are provided. Bold font denotes large effect size, Cohen's d>0.80.