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Table 3 Malariometric indices by haemoglobin genotype

From: Haemoglobin variants and Plasmodium falciparum malaria in children under five years of age living in a high and seasonal malaria transmission area of Burkina Faso

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)
  1. High transmission season.
  2. *P for difference vs AA < 0.05.
  3. **P for difference vs AA < 0.01.