Table 2.

Laboratory data according to gender, age, presence of thalassemia and beta globin gene haplotypes

		n	Hb* (g/dL)	p-value	MCV* (fl)	p-value	Fetal Hb* (%)	p-value
			Mean ±SD [95% CI]		Mean ±SD [95% CI]		Mean ±SD [95% CI]
Gender
	Male	48	8.2 ± 1.2 [7.9-8.6]		80.8 ± 12.3 [77.3-84.4]		12.0 ± 8.3 [9.5-14.5]
	Female	48	8.9 ± 1.3 [8.5-9.2]	< 0.05	81.2 ± 9.4 [78.4-83.9]	> 0.05	12.3 ± 5.9 [10.4-14.2]	> 0.05
Age group
	0-3 years old	62	8.7 ± 1.4 [8.3-9.0]		78.4 ± 10.3 [75.8-81.0]		13.1 ± 7.6 [10.9-15.2]
	3-6 years old	34	8.3 ± 1.2 [7.8-8.7]	> 0.05	85.7 ± 10.6 [82.0-89.4]	< 0.05	10.7 ± 6.3 [8.5-12.9]	> 0.05
α-Thalassemia
	αα/αα	72	8.5 ± 1.2 [8.2-8.8]		83.7 ± 9.0 [81.6-88.5]		12.5 ± 7.1 [10.7-14.2]
	-α/αα or -α/-α	19	8.9 ± 1.7 [8.1-9.7]	> 0.05	71.7 ± 11.9 [66.0-77.4]	< 0.05	12.5 ± 8.0 [8.1-16.9]	> 0.05
β- globin haplotype
	Bantu/Bantu	39	8.0 ± 1.0 [7.6-8.3]#		84.8 ± 9.7 [81.7-87.9]#		11.9 ± 5.3 [10.2-13.8]#
	Bantu/Benin	32	8.7 ± 1.2 [8.2-9.1]	< 0.05	83.1 ± 7.3 [80.4-85.7]	> 0.05	16.1 ± 8.1 [12.9-19.2]	< 0.05
	Bantu/CI	7	10.5 ± 0.5 [10.0-11.0]		71.8 ± 8.6 [63.8-79.9]		4.1 ± 3.4 [0.5-7.8]
	Bantu/Atypical	9	8.5 ± 1.5 [7.4-9.7]		74.0 ± 10.7 [65.8-82.3]		7.9 ± 3.9 [4.7-11.2]
	Benin/Benin	2	7.8 ± 1.5		86.6 ± 14.6		15.9 ± 14.4
	Benin/CI	2	10.4 ± 0.6		66.2 ± 21.5		-
	Benin/Atypical	2	9.5 ± 1.2		67.7 ± 15.9		5.3 ± 0.7
	Atypical/CI	2	8.3 ± 0.6		80.9 ± 4.2		4.2 ± 0.5

*Mean value of mean of each case;

# between Bantu/Bantu and Bantu/Benin groups. Analysis by student t-test. Hb: hemoglobin; MCV: mean corpuscular volume.