Kidney function of HIV-infected children in Lagos, Nigeria: using Filler's serum cystatin C-based formula

Table 2 Serum cystatin C and eGFR of children with different stages of HIV disease.

Variables	Stage of HIV disease		p value
	Advanced n = 35	Not advanced n = 25
HIV-related variables:
For <5 years, CD4%, median (IQR)	12.6 (8.2)	25.1 (5.2)	0.000^a
For ≥ 5 years, CD4 count/mm³, median(IQR)	343 (488)	568 (507)	0.002^a
Serum cystatin C, median (mg/l)	0.79 (0.35)	0.76 (0.24)	0.196^a
Cystatin C >1.0 mg/l, no. (%)	8 (22.9)	2 (8)	0.119^b
eGFR, mean (ml/min/1.73 m²)	97.3 (4.2)	96.2 (23.6)	0.904^c
eGFR <60 ml/min/1.73 m² no. (%)	6 (17.1)	2 (8)	0.265^b