Table 2

Diagnostic performance of the three practitioners

Practitioner	True positives	False negatives	False positives	True negatives	Sensitivity	Specificity	Positive predictive value	Negative predictive value	Accuracy (%)
Experienced AHP	46	6	7	35	0.88	0.83	0.87	0.85	86.2
Newly trained AHP	36	16	6	36	0.69	0.86	0.86	0.69	76.6
Physician	23	29	0	42	0.44	1.00	1.00	0.57	69.1

AHP, allied health professional.