Table 3. Mean difference and correlation of Biosensor and reference method by site in phase B.

Site	G6PD (U/gHb): Mean Difference (95% LoA, p)	G6PD (rs, p)	Hb (g/dL): Mean Difference (95% LoA, p)	Hb (rs, p)
1	-0.1 (-1.8 to 1.7, 0.245)	0.548, <0.001	-1.9 (-4.0 to 0.1, <0.001)	0.254, 0.005 *
2	-0.2 (-1.8 to 1.4, 0.004)	0.564, <0.001	-1.9 (-4.1 to 0.2, <0.001)	-0.023, 0.806 *
3	0.2 (-1.7 to 2.0, 0.088)	0.659, <0.001	-3.0 (-4.9 to -1.2, <0.001)	0.350, <0.001
4	0.1 (-2.0 to 2.2, 0.504)	0.536, <0.001	-2.5 (-4.7 to -0.3, <0.001)	0.312, 0.001
5	1.1 (-1.9 to 4.2, <0.001)	0.575, <0.001	0.6 (-0.8 to 2.0, <0.001)	0.416, <0.001
6	-0.3 (-3.2 to 2.7, 0.055)	0.509, <0.001	-2.6 (-5.9 to 0.6, <0.001)	0.095, 0.303 *
7	-1.1 (-3.1 to 0.8, <0.001)	0.514, <0.001	-0.1 (-1.7 to 1.5, 0.133)	0.239, 0.009 *
8	-0.9 (-2.8 to 1.0, <0.001)	0.609, <0.001	-1.5 (-3.4 to 0.4, <0.001)	0.500, <0.001
9	-2.6 (-7.6 to 2.3, <0.001)	0.569, <0.001	-0.6 (-3.0 to 4.3, 0.009)	0.391, <0.001
10	-1.0 (-3.1 to 1.1, <0.001)	0.563, <0.001	-0.9 (-3.0 to 1.1, <0.001)	0.211, 0.021 **

95% LoA = 95% limit of agreement

* Correlation was non-significant across all control categories (all p>0.005)

**Only correlation for Intermediate controls was significant: r_s = 0.580, p = 0.001