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

Table 2 Actual and imputed results for the Al Ragib study between thresholds 0.13 and 0.18

First author	Threshold ID, t	Threshold value, x	Imputed?	TP	FP	FN	TN	Total	High proteinuria	Normal proteinuria
Al Ragib	1	0.13	No	35	51	4	95	185	39	146
	2	0.14	Yes	34.7	49.1	4.3	96.9
	3	0.15	Yes	34.3	47.3	4.7	98.7
	4	0.16	Yes	33.9	45.5	5.1	100.5
	5	0.17	Yes	33.5	43.7	5.5	102.3
	6	0.18	No	33	42	6	104

The imputation is undertaken on the logit-scale, and then the values are back transformed to calculate the corresponding imputed raw data values.
ID ordered identification number, TP true positives, FP false positives, TN true negatives, FN false negatives.

ISSN: 2046-4053