Table 12. Association and predictive statistics for unique predictors and combined effects.
Convrt/ Total (n) |
HR (95% CI) | p | LR+ | LR− | PPP (%) |
NPP (%) |
Sensit (%) |
Specif (%) |
|
---|---|---|---|---|---|---|---|---|---|
Early adolescent social maladjustment (>2) | 74/251 | 2.02 (1.28–3.18) | .003 | 1.74 | 0.70 | 46 | 72 | 50.0 | 71.2 |
Suspiciousness (>3) | 78/270 | 2.51 (1.61–3.91) | <.001 | 2.15 | 0.63 | 51 | 75 | 52.6 | 75.5 |
Disorganized communication (>1) | 78/270 | 1.89 (1.15–3.09) | .012 | 1.32 | 0.62 | 40 | 76 | 71.8 | 45.8 |
Social anhedonia (>2) | 77/268 | 2.42 (1.49–3.92) | <.001 | 1.64 | 0.54 | 46 | 80 | 68.8 | 58.1 |
Ideational richness (>0) | 77/266 | 2.36 (1.45–3.82) | .001 | 1.57 | 0.56 | 45 | 78 | 68.8 | 56.1 |
Early social maladjustment + suspiciousness | 74/251 | 2.81 (1.69–4.66) | <.001 | 3.59 | 0.77 | 59 | 70 | 28.4 | 92.1 |
Early social maladjustment + disorganized communication | 74/251 | 2.42 (1.52–3.85) | <.001 | 2.31 | 0.71 | 51 | 72 | 41.9 | 81.9 |
Early social maladjustment + social anhedonia | 73/249 | 2.11 (1.32–3.35) | .002 | 1.97 | 0.73 | 49 | 72 | 42.5 | 78.4 |
Early social maladjustment + ideational richness | 73/247 | 2.07 (1.26–3.40) | .004 | 2.03 | 0.81 | 50 | 70 | 31.5 | 84.5 |
Note: The reference group is nonconversion. The values in parentheses indicate the lowest threshold for positive test (positive test = 1, negative test = 0). Convrt, conversion sample size; Total, total sample size; HR, hazard ratio from Cox regression analysis; LR+, positive likelihood ratio (sensitivity/1-specificity); LR−, negative likelihood ratio (1-sensitivity/specificity); PPP, positive predictive power; NPP, negative predictive power; Sensit, sensitivity; Specif, specificity.