Table 1.
Coefficients from linear regression of difference between haemoglobin and haematocrit/3 (expressed as "g of haemoglobin/dl")
| Covariates | Univariate coefficient(95% CI) | P-value | Multivariate coefficient (95% CI) | P-value |
| Average of Hb & Hct/3 | ||||
| 4.5 "g of Hb/dl" | -3.70 (-4.06, -3.34)§ | < 0.001 | -2.33 (-2.78, -1.89)§ | < 0.001 |
| Each additional "g of Hb/dl" | +0.28 (+0.24, +0.32) | < 0.001 | +0.17 (+0.13, +0.22) | < 0.001 |
| Age: | ||||
| 6 – 12 months | -1.07 (-1.14, -0.99)§ | < 0.001 | -2.33 (-2.78, -1.89)§ | < 0.001 |
| Each additional 1 year of age | -0.26 (-0.36, -0.16) | < 0.001 | -0.23 (-0.32, -0.15) | < 0.001 |
| P. falciparum infection: | ||||
| No | -0.92 (-1.01, -0.84)§ | < 0.001 | -2.33 (-2.78, -1.89)§ | < 0.001 |
| Yes | -0.58 (-0.71, -0.45) | < 0.001 | -0.08 (-0.21, +0.05) | 0.23 |
| Season: | ||||
| Dry | -0.57 (-.066, -0.48)§ | < 0.001 | -2.33 (-2.78, -1.89)§ | < 0.001 |
| Wet | -0.99 (-1.11, -0.87) | < 0.001 | -0.66 (-0.80, -0.51) | < 0.001 |
| Sex: | ||||
| Male | -1.28 (-1.37, -1.19)§ | < 0.001 | -2.33 (-2.78, -1.89)§ | < 0.001 |
| Female | +0.26 (+0.13, +0.39) | < 0.001 | +0.21 (+0.09, +0.32) | < 0.001 |
§ Denotes the constant in the model – i.e. the reference category to which additional coefficients must be added