Table 2.
Bland-Altman and Deming regression summary results in venous and capillary blood.
| Specimen Type | Parameter | N | Bland-Altman | Deming Regression | ||||
|---|---|---|---|---|---|---|---|---|
| Mean %Bias |
95% LOA
(LL, UL) |
R2 | Slope (95% CL) | Intercept | ||||
| Venous Blood | CD4 (cells/µL) | 716 | 3.10 | (-22.89, 16.70) | 0.99 | 0.96 | (0.94–0.99) | 1.53 counts |
| %CD4 | 716 | 0.75 | (-2.12, 3.61) | 0.98 | 1.01 | (0.99–1.02) | 0.0% | |
| Hb (g/dL) | 720 | -0.27 | (-1.61, 1.07) | 0.91 | 1.03 | (0.99–1.06) | -0.06 g/dL | |
| Capillary Blood |
CD4 (cells/µL) |
681 | 3.74 | (-24.06, 31.54) | 0.97 | 1.03 | (1.02–1.05) | 0.72 counts |
| %CD4 | 681 | 0.08 | (-3.81, 3.97) | 0.96 | 1.00 | (0.99–1.03) | -0.26% | |
| Hb (g/dL) | 691 | -0.06 | (-1.57, 1.46) | 0.89 | 1.02 | (0.99–1.05) | -0.37 g/dL | |
LOA= limits of agreement; LL= lower limit; UL= upper limit