Table 6. Percent agreement between the STANDARD G6PD Test and the spectrophotometric reference test using the manufacturer’s threshold values at 30% and 70% G6PD activity thresholds, on venous specimens.

		Spectrophotometric reference test
		Deficient	Intermediate	Normal	Total
STANDARD G6PD Test	Deficient	56	14	9	79
	Intermediate	0	17	31	48
	Normal	0	1	1,534	1,535
	Total	56	32	1,574	1,662

G6PD, glucose-6-phosphate dehydrogenase.

Kappa: 0.73. Percent agreement between hemoglobin-normalized G6PD activity categorized results and the STANDARD Test was 96.7% (95% CI 95.7%–97.5%).