Meta-analysis of test accuracy studies: an exploratory method for investigating the impact of missing thresholds

Table 1 PCR results for each threshold in each of the 13 studies of Morris et al. [5]

First author	Threshold ID, t	Threshold value, x	TP	FP	FN	TN	Total	High proteinuria	Normal proteinuria
Al Ragib	1	0.13	35	51	4	95	185	39	146
	6	0.18	33	42	6	104
	7	0.19	33	39	6	107
	8	0.2	31	38	8	108
	22	0.49	29	23	10	123
Durnwald	3	0.15	156	35	12	17	220	168	52
	8	0.2	152	27	16	25
	15	0.3	136	23	32	29
	19	0.39	123	14	45	38
	20	0.4	120	12	48	40
	23	0.5	106	9	62	43
Dwyer	3	0.15	54	28	2	32	116	56	60
	5	0.17	51	25	5	35
	7	0.19	50	18	6	42
	12	0.24	41	8	15	52
	14	0.28	37	3	19	57
	19	0.39	31	0	25	60
Leonas	15	0.3	277	7	5	638	927	282	645
Ramos	23	0.5	25	1	1	20	47	26	21
Robert	15	0.3	27	4	2	38	71	29	42
Rodriguez	2	0.14	69	34	0	35	138	69	69
	3	0.15	68	34	1	35
	4	0.16	68	26	1	43
	5	0.17	65	25	4	44
	6	0.18	62	24	7	45
	7	0.19	62	21	7	48
	8	0.2	60	19	9	50
	9	0.21	60	17	9	52
Saudan	8	0.2	14	27	0	59	100	14	86
	13	0.25	13	14	1	72
	15	0.3	13	7	1	79
	18	0.35	12	4	2	82
	20	0.4	11	3	3	83
	21	0.45	10	0	4	86
Schubert	3	0.15	9	3	0	3	15	9	6
Schubert	4	0.16	9	2	0	4	15	9	6
Shahbazian	8	0.2	35	2	3	41	81	38	43
Taherian	2	0.14	67	7	6	20	100	73	27
	3	0.15	67	3	6	24
	4	0.16	65	1	8	26
	5	0.17	64	1	9	26
	6	0.18	63	0	10	27
	8	0.2	59	0	14	27
Wheeler	9	0.21	59	13	9	45	126	68	58
Yamasmit	7	0.19	29	6	0	7	42	29	13
	9	0.21	29	5	0	8
	10	0.22	29	4	0	9
	11	0.23	28	3	1	10
	12	0.24	28	2	1	11
	13	0.25	28	1	1	12
	14	0.28	27	1	2	12
	16	0.31	26	1	3	12
	17	0.32	25	1	4	12

ID ordered identification number, TP true positives, FP false positives, TN true negatives, FN false negatives.

ISSN: 2046-4053