Effect of asymptomatic malaria on hemoglobin concentrations (longitudinal data)
| Group . | Dipstick test result . | n . | Change in hemoglobin concentration, g/L . | ||
|---|---|---|---|---|---|
| At baseline . | At 12 wk . | Difference in values after and before intervention . | Compared with group A* . | ||
| A | Negative | Negative | 83 | 5.4 ± 8.8 | — |
| B | Negative | Positive | 22 | −7.8 ± 19.2 | −13.3 (−4.6 to 22.0) |
| C | Positive | Negative | 21 | 20.4 ± 11.5 | 15.0 (10.4 to 19.5) |
| Group . | Dipstick test result . | n . | Change in hemoglobin concentration, g/L . | ||
|---|---|---|---|---|---|
| At baseline . | At 12 wk . | Difference in values after and before intervention . | Compared with group A* . | ||
| A | Negative | Negative | 83 | 5.4 ± 8.8 | — |
| B | Negative | Positive | 22 | −7.8 ± 19.2 | −13.3 (−4.6 to 22.0) |
| C | Positive | Negative | 21 | 20.4 ± 11.5 | 15.0 (10.4 to 19.5) |
Mean ± standard deviation (95% confidence interval).
Calculated as the change in hemoglobin concentration in either group B or C minus the corresponding change in group A.