Table 1 Socio-demographic characteristics of mother-child pairs according to HIV-1 status based on cord blood testing (N = 3 148)

Age range (years). n (%)

 < 25

858 (98.7)

11 (1.3)

869

 25–34

1 728 (96.3)

67 (3.7)

1 795

 35+

441 (91.1)

43 (8.9)

484

Gestity. n (%)

< 0.001¹

 1–2

1 755 (97.5)

45 (2.5)

1 800

 3–4

934 (94.2)

57 (5.8)

991

 5+

330 (94.6)

19 (5.4)

349

 Missing

08

08

Parity. n (%)

0.904²

 1–2

2 415 (96.1)

99 (3.9)

2 514

 3–4

492 (96.3)

19 (3.7)

511

 5+

107 (97.3)

3 (2.7)

110

 Missing

13

13

Number of ANC visit. n (%)

 0

21 (91.3)

2 (8.7)

23

 < 4

616 (95.8)

27 (4.2)

643

 4+

2 364 (96.3)

92 (3.7)

2 456

 Missing

26

26

Mode of delivery. n (%)

> 0.999²

 Low track

1 672 (96.2)

67 (3.8)

1 739

 Instrumental

3 (100.0)

0 (0.0)

3

 Caesarean section

1 352 (96.2)

54 (3.8)

1 406

Birth weight (g). n (%)

0.061¹

 Low weight (< 2500)

328 (94.5)

19 (5.7)

347

 Normal weight (2500+)

2 699 (96.4)

102 (3.6)

2 801