Table 3.
Malariometric indices by haemoglobin genotype
| Infection characteristic | AA (N = 305) | AC (N = 64) | AS (N = 35) | CC (N = 9) | SC (N = 5) | SS (N = 1) | All (N = 419) |
|---|---|---|---|---|---|---|---|
| Symptomatic malaria (fever and > 0 parasites/μl), N (%) |
37 (12.1%) |
13 (20.3%) |
2 (5.7%) |
0 (0.0%) |
2 (40.0%) |
0 (0.0%) |
54 (12.9%) |
|
P. falciparum infection (> 0 parasites/μl), N (%) |
152 (49.8%) |
34 (53.1%) |
19 (54.3%) |
1 (11.1%)* |
4 (80.0%) |
1 (100.0%) |
211 (50.4%) |
| Symptomatic malaria (fever and >2500 parasites/μl) |
27 (8.9%) |
9 (14.1%) |
1 (20.0%) |
0 (0.0%) |
0 (0.0%) |
0 (0.0%) |
37 (8.8%) |
|
P. falciparum infection (> 2500 parasites/μl), N (%) |
84 (27.5%) |
22 (34.4%) |
4 (11.4%)* |
0 (0.0%) |
2 (40.0%) |
1 (100.0%) |
113 (27.0%) |
| Gametocyte carriage, N (%) |
60 (19.7%) |
11 (17.2%) |
3 (8.6%) |
2 (22.2%) |
0 (0.0%) |
0 (0.0%) |
76 (18.1%) |
| Splenomegaly, N (%) |
26 (8.5%) |
7 (10.9%) |
2 (5.7%) |
0 (0.0%) |
0 (0.0%) |
0 (0.0%) |
35 (8.4%) |
| Haemoglobin (g/dl), mean (SD) |
10.2 (1.5) |
9.9 (1.4) |
9.9 (1.5) |
10.0 (1.5) |
11.1 (1.1) |
10.5 |
10.1 (1.5) |
|
P. falciparum density (per/μl), GM (95% CI) |
2690 (1978, 3659) |
5823 (3117, 10878)* |
986 (383, 2541)* |
364 |
1632 (7, 375567) |
9740 |
2748 (2104, 3589) |
| Gametocyte density (per/μl), GM (95% CI) | 41 (31, 53) | 20 (11, 37)* | 23 (3, 173) | 34 (4, 263) | (NA) | (NA) | 36 (28, 45) |
High transmission season.
*P for difference vs AA < 0.05.
**P for difference vs AA < 0.01.