Table 1. Phase 2 (community based clinical setting) sensitivity, specificity, and predictive values for the 3 point-of-care tests to detect or exclude anemia.

Females (12 g/dl cut-off)
Point-of-care tests		reference
	Outcome	Positive	Negative	Subtotal	sensitivity	specificity	PPV	NPV
HemoCue	Positive	26	8	34	72%	70%	76%	66%
	Negative	10	19	29
	Total	36	27	63
Stat-Site	Positive	30	11	41	83%	59%	73%	73%
	Negative	6	16	22
	Total	36	27	63
URIT	Positive	36	25	61	100%	7%	59%	100%
	Negative	0	2	2
	Total	36	27	63
Males (13 g/dl cut-off)
Point-of-care tests		reference
	Outcome	Positive	Negative	Subtotal	sensitivity	specificity	PPV	NPV
HemoCue	Positive	2	10	12	50%	70%	17%	92%
	Negative	2	23	25
	Total	4	33	37
Stat-Site	Positive	4	10	14	100%	70%	29%	100%
	Negative	0	23	23
	Total	4	33	37
URIT	Positive	4	31	35	100%	6%	11%	100%
	Negative	0	2	2
	Total	4	33	37
Females and males (using the respective cut-off values)
Point-of-care tests		reference
	Outcome	Positive	Negative	Subtotal	sensitivity	specificity	PPV	NPV
HemoCue	Positive	28	18	46	70%	70%	61%	78%
	Negative	12	42	54
	Total	40	60	100
Stat-Site	Positive	34	21	55	85%	65%	62%	87%
	Negative	6	39	45
	Total	40	60	100
URIT	Positive	40	56	96	100%	7%	42%	100%
	Negative	0	4	4
	Total	40	60	100

Sensitivity = % of patients with anemia, according to the reference laboratory test, that were identified as anemic by the point-of-care test; specificity = % of patients without anemia, according to the reference laboratory test, that were identified as non-anemic by the point-of-care test; PPV, positive predictive value = % of patients that were identified as anemic by the point-of-care test that were confirmed as anemic by the reference laboratory test; NPV, negative predictive value = % of patients that were identified as non-anemic by the point-of-care test that were confirmed as non-anemic by the reference laboratory test.