Table 2.

Comparison of screening results with those of the 2018 Nigerian DHS

	Present study (n=3603)	DHS 2018, age 6–8 months (n=687)	DHS 2018, age 6–59 months (n=11 391)
HbAA	2774 (77·0%)	528 (76·9%)	8782 (77·1%)
HbAS	740 (20·5%)	139 (20·2%)	2244 (19·7%)
HbAC	34 (0·9%)	10 (1·5%)	182 (1·6%)
HbSC	4 (0·1%)	1 (0·2%)	46 (0·4%)
HbSS	51 (1·4%)	7 (1·0%)	103 (0·9%)
Other	0	0	11 (0·1%)

Data are n (%). DHS=Demographic Health Survey. HbAA=normal haemoglobin. HbAS=sickle cell trait. HbAC=heterozygous for HbA and HbC. HbSC=heterozygous for HbS and HbC. HbSS=sickle cell anaemia.