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Table 2 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 = 331) AC (N = 68) AS (N = 37) CC (N = 10) SC (N = 5) SS (N = 1) All (N = 452)
Symptomatic malaria (fever and >0 parasites/μl), N (%) 39 (11.8%) 7 (10.3%) 4 (10.8%) 1 (10.0%) 0 (0.0%) 0 (0.0%) 51 (11.3%)
P. falciparum infection (>0 parasites/μl), N (%) 205 (61.9%) 39 (57.4%) 20 (54.1%) 2 (20.0%)* 4 (80.0%) 0 (0.0%) 270 (59.7%)
Symptomatic malaria (fever and >2500 parasites/μl) 22 (6.6%) 3 (4.4%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 0 (0.0%) 25 (5.5%)
P. falciparum infection (>2500 parasites/μl), N (%) 82 (24.8%) 15 (22.1%) 6 (16.2%) 1 (10.0%) 1 (20.0%) 0 (0.0%) 105 (23.2%)
Gametocyte carriage, N (%) 101 (30.5%) 21 (30.9%) 10 (27.0%) 3 (30.0%) 3 (60.0%) 0 (0.0%) 138 (30.5%)
Splenomegaly, N (%) 67 (20.2%) 9 (13.2%) 4 (11.1%) 1 (10.0%) 0 (0.0%) 0 (0.0%) 81 (18.0%)
Haemoglobin (g/dl), mean (SD) 9.7 (1.5) 9.5 (1.6) 9.5 (1.5) 9.4 (1.5) 11.1 (0.8) 10.1 9.6 (1.5)
P. falciparum density (per/μl), GM (95% CI) 1546 (1259,1898) 1904 (1159, 3128) 1305 (527, 3231) 3088 (51, 185428) 1418 (104,19382) --- 1579 (1315, 1896)
Gametocyte density (per/μl), GM (95% CI) 51 (41, 64) 48 (30, 75) 95 (54, 166) 81 (2, 3110) 22 (0, 62183) --- 52 (43, 64)
  1. Low transmission season.
  2. *P for difference vs AA < 0.05.
  3. **P for difference vs AA < 0.01.