Table 2. Sensitivity, specificity and likelihood ratios used in the odds ratio form of Bayes' Rule model.

Variable group	Variables	Sensitivity (%)	Specificity (%)	LR+	LR−
Historical	Any history of drug use	72.73	72.41	2.64	0.38
Clinical	PANSS positive	81.82	65.52	2.37	0.28
	PANSS negative	72.73	68.97	2.34	0.40
	PANSS general	72.73	75.86	3.01	0.36
	GAF—low	90.91	51.72	1.88	0.18
Fatty acid marker	Nervonic acid	90.91	53.57	1.96	0.17
	Total Omega-3	81.82	67.86	2.55	0.27

Abbreviations: GAF, Global assessment of function; LR−, negative likelihood ratio; LR+, positive likelihood ratio; PANSS, Positive And Negative Symptom Scale.