The data for each included study.

Table 1: The data for each included study.

Study	nexp	nctrl	TP	FN	FP	TN	sens	spec	ppv	npv
Durnwald_2003	220	220	136	32	23	29	81	55.8	85.5	47.5
Leanos-Miranda_2007	282	927	277	5	8	637	98.2	98.8	97.2	99.2
Saikul_2006	164	164	88	21	6	49	81	88	93	71
Kumari_2013	400	400	270	30	16	84	90	84	95	72
Saudan_2005	100	100	55	4	3	38	93	92	95	90

Abbreviations: Nexp: Experimental Group; Nctrl: Control Group; TP: True Positive; FN: False Negative; FP: False Positive; TN: True Negative; Sens: Sensitivity; Spec: Specificity; PPV: Positive Predictive Value; NPV: Negative Predictive Value