The Validation of a New Visual Anaemia Evaluation Tool HemoHue HH1 in Patients with End-Stage Renal Disease

Table 2

Test specificities in detecting binary outcomes.

Outcome	Sens.	Spec.	PPV	NPV	Kappa	Sens.	Spec.	PPV	NPV	Kappa
	1st session					2nd session
Hb < 10 g/dL	50	73	29	89	0.34	33	92	38	91	0.29
10 g/dl ≤ Hb ≤ 12 g/dL	53	48	60	42	0.22	74	56	70	62	0.31
Hb > 12 g/dL	39	91	58	82	0.45	65	87	71	83	0.46
	Physicians					Non-physicians
Hb < 10 g/dL	32	87	29	88	0.44	55	76	29	90	0.39
10 g/dL ≤ Hb ≤ 12 g/dL	64	51	64	51	−0.01	59	46	60	45	−0.04
Hb > 12 g/dL	63	86	63	86	0.58	35	89	54	79	0.41

Sensitivity, specificity, and positive and negative predictive values are given in percents.