Table 1.

HbS genotype frequencies in cases and controls

	Overall, no. (%)	HbAA, no. (%)	HbAS, no. (%)	SCA, no. (%)
Controls	1480 (100)	1252 (84.59)	218 (14.73)	10 (0.80)
Uncomplicated malaria	807 (100)	770 (95.42)	35 (4.34)	2 (0.26)*
Severe malaria	1393 (100)	1357 (97.42)	31 (2.23)	5 (0.37)†
Nonmalaria illnesses	743 (100)	636 (85.60)	86 (11.57)	21 (3.30)‡
Bacteremia	1497 (100)	1280 (85.50)	134 (8.95)	83 (6.48)§
Total	5919 (100)	5295 (89.46)	504 (8.51)	120 (2.27)

Overall, the diagnosis of SCA was already established at the time of admission in 16 patients: *1, †1, ‡2, and §12.