GHQ ‘case’ defined with cut off at: | ||||||
---|---|---|---|---|---|---|
All patients (n = 786) | 3 | 4 | 5 | 6 | 7 | 8 |
Unweighted numbers | 608 | 550 | 515 | 392 | 308 | 231 |
Sensitivity (%) | 66.3 | 59.9 | 53.5 | 43.9 | 38.2 | 29.5 |
Specificity (%) | 71.8 | 80.5 | 85.1 | 89.4 | 92.5 | 94.5 |
Predictive value, positive (%) | 34.0 | 40.2 | 44.1 | 47.4 | 52.6 | 54.1 |
Predictive value, negative (%) | 90.7 | 90.2 | 89.3 | 87.9 | 87.3 | 86 |
Patients not seen by the GP in the past 12 months (n = 83) | ||||||
Unweighted numbers | 60 | 57 | 54 | 35 | 25 | 16 |
Sensitivity (%) | 49.4 | 45.3 | 37.6 | 21.2 | 16.5 | 9.4 |
Specificity (%) | 84.6 | 87.9 | 89.4 | 91.8 | 94.7 | 96.2 |
Predictive value, positive (%) | 56.8 | 60.9 | 59.3 | 51.4 | 56.0 | 50.0 |
Predictive value, negative (%) | 80.4 | 79.5 | 77.8 | 74.0 | 73.5 | 72.2 |