Table 4 Sensitivity and specificity of the Toronto PsA screening questionnaire (ToPAS)
Patient groupsSensitivitySpecificity
Psoriasis and PsA89.1% (83.0%, 93.2%)86.3% (76.4% to 92.5%)
General dermatology and PsA91.9% (85.7%, 95.6%)95.2% (88.0% to 98.2%)
General rheumatology and PsA92.6% (86.4%, 96.1%)85.7% (76.9% to 91.5%)
Family medicine and PsA90.4% (83.9%, 94.5%)100%