Table 1.
Subject characteristics and hematologic parameters. There was no difference in age and sex of the participants in each group. Hemoglobin SS subjects had significantly lower hemoglobin concentration and higher WBC and platelet counts (indicated by asterisks (*)).
| Control | Hemoglobin SS | P value | |||||
|---|---|---|---|---|---|---|---|
| n | Arithmetic mean (95th% CI) | Geometric mean (95th% CI) | n | Arithmetic mean (95th% CI) | Geometric mean (95th% CI) | ||
| Age (yrs) | 68 | 12.8 (12–13.8) | 12.3 (11.4–13.3) | 43 | 12 (11–13) | 11.5 (10.4–12.6) | 0.26 |
| Sex (males) | 68 | 30 (44%) | 43 | 20 (47%) | |||
| Hemoglobin (gm/dL) | 39 | 13.6 (12.1–15.2) | 13.2 (12.4–14.1) | 19 | 8.4 (7.8–9) | 8.3* (7.7–8.9) | <0.001 |
| WBC (×103/mL) | 39 | 5.4 (4.9–6) | 5.2 (4.7–5.7) | 18 | 12.1 (9.6–14.4) | 11.4* (9.7–13.4) | <0.001 |
| Platelets (×103/mL) | 39 | 280 (261–298) | 274 (257–293) | 18 | 413 (373–454) | 406* (368–448) | <0.001 |