TABLE 1.

Performance characteristics of predictions of the involvement of Pseudomonas aeruginosa in a diabetic foot infection (with stratifications)

n = 221	Sensitivity	Specificity	Positive predictive value	Negative predictive value
Overall prediction in the entire study group	0.32	0.84	0.18	0.92
Before restitution	0.38	0.82	0.28	0.88
After the 1st restitution of results	0.22	0.85	0.12	0.94
Prediction in osteomyelitis cases only	0.20	0.81	0.09	0.92
Prediction by female healthcare workers only	0.40	0.82	0.18	0.94
Prediction by surgeons only	0.36	0.84	0.25	0.90
Cases with Gram‐negative rods seen on Gram‐stained smear	0.60	0.71	0.50	0.79