Table 1 Baseline maternal and child characteristics at 6-weeks postpartum by peripartum antiretroviral exposure, 2012–2014, South Africa

Age (years)

 13–19

109 (4.32)

13 (2.11)

23 (2.94)

58 (6.60)

11 (5.82)

4 (6.78)

 20–35

2063 (81.67)

449 (72.77)

668 (85.42)

738 (83.96)

160 (84.66)

48 (81.36)

 35+

354 (14.01)

155 (25.12)

91 (11.64)

83 (9.44)

18 (9.52)

7 (11.86)

Parity

 Primipara

588 (23.28)

95 (15.40)

188 (24.04)

255 (29.01)

31 (16.40)

19 (32.20)

 Multipara

1938 (76.72)

522 (84.60)

594 (75.96)

594 (70.99)

158 (83.60)

40 (67.80)

Education (grade)

 None-grade 7

490 (19.40)

142 (23.01)

138 (17.65)

146 (16.61)

51 (26.98)

13 (22.03)

 7–12

1935 (76.60)

456 (73.91)

617 (78.90)

687 (78.16)

131 (69.31)

44 (74.58)

 12+

101 (4.25)

19 (3.08)

27 (3.45)

46 (5.23)

7 (3.70)

2 (4.25)

Delivery mode

 Vaginal

1920 (76.16)

456 (73.91)

577 (74.16)

686 (78.04)

154 (81.91)

47 (76.16)

 C-section

601 (23.84)

161 (26.09)

201 (25.84)

193 (21.96)

34 (18.09)

12 (23.84)

 Missing

5

0

4

0

1

0

CD4 count at 6 weeks, n, median cells/mm³(IQR)

1587, 373 (268–508)

417, 350 (250–500)

514, 271 (186–340)

562, 480 (390–598)

93, 495(367–600)

1, 734 (734–734)

ANC visits

 1–5

1031 (60.15)

247 (56.39)

303 (58.83)

359 (60.95)

90 (69.23)

32 (76.19)

 5+

683 (39.85)

191 (43.61)

212 (41.17)

230 (39.05)

40 (30.77)

10 (23.81)

 Missing

812

179

267

290

59

17

Syphilis (antenatal)

 Positive

159 (8.91)

52 (11.82)

57 (10.12)

42 (6.65)

8 (7.21)

0 (0)

 Negative

1625 (91.09)

388 (88.18)

506 (89.88)

590 (93.35)

103 (92.79)

38 (100)

 Missing

742

177

219

247

78

21

Current tuberculosis

 Yes

128 (5.09)

59 (9.61)

42 (5.40)

21 (2.39)

5 (2.66)

1 (1.69)

 No

2388 (94.91)

555 (90.39)

736 (94.60)

856 (97.61)

183 (97.34)

58 (98.31)

 Missing

10

3

4

2

1

0

Place of delivery

 Hospital

1973 (78.11)

497 (80.55)

618 (79.03)

683 (77.70)

128 (67.72)

47 (79.66)

 Clinic

449 (17.78)

95 (15.40)

148 (18.93)

159 (18.09)

39 (20.63)

8 (13.56)

 Home

104 (4.12)

25 (4.05)

16 (2.05)

37 (4.21)

22 (11.64)

4 (6.78)

Birth attendant

 Doctor

728 (28.82)

186 (30.15)

238 (30.43)

243 (27.65)

43 (22.75)

18 (30.51)

 Nurse

1704 (67.46)

409 (66.29)

531 (67.90)

602 (68.49)

125 (66.14)

37 (62.71)

 TBA

94 (3.72)

22 (3.57)

13 (1.66)

34 (3.87)

21 (11.11)

4 (6.78)

Peri-partum social support

 Yes

1969 (77.95)

488 (79.09)

604 (77.24)

676 (76.91)

153 (80.95)

48 (81.36)

 No

557 (22.05)

129 (20.91)

178 (22.76)

203 (23.09)

36 (19.05)

11 (18.64)

Mother employed

 Yes

501 (19.83)

143 (23.18)

168 (21.48)

153 (17.41)

25 (13.23)

12 (20.34)

 No

2025 (80.17)

474 (76.82)

614 (78.52)

726 (82.59)

164 (86.77)

47 (79.66)

Male

1285 (50.87)

310 (50.24)

386 (49.36)

465 (52.90)

91 (48.15)

33 (55.93)

Female

1241 (49.13)

307 (49.76)

396 (50.64)

414 (47.10)

98 (51.85)

26 (44.07)

Piped water

 Yes

1913 (75.73)

479 (77.63)

596 (76.21)

660 (75.09)

139 (73.54)

39 (66.10)

 No

613 (24.27)

138 (22.37)

186 (23.79)

219 (24.91)

50 (26.46)

20 (33.90)

Flush toilet

 Yes

1350 (53.44)

359 (58.18)

426 (54.48)

466 (53.01)

69 (36.51)

30 (50.85)

 No

1176 (46.56)

258 (41.82)

356 (45.52)

413 (46.99)

120 (63.49)

29 (49.15)

Electricity

 Yes

2377 (94.10)

585 (94.81)

747 (95.52)

815 (92.72)

173 (91.53)

57 (96.61)

 No

149 (5.90)

32 (5.19)

35 (4.48)

64 (7.28)

16 (8.47)

2 (3.39)

No food in house

 Yes

496 (19.64)

139 (22.53)

143 (18.29)

174 (19.80)

31 (16.40)

9 (15.25)

 No

2027 (80.25)

478 (77.47)

638 (81.59)

703 (79.98)

158 (83.60)

50 (84.75)

Child sex

 Male

1285 (50.87)

310 (50.24)

386 (49.36)

465 (52.90)

91 (48.15)

33 (55.93)

 Female

1241 (49.13)

307 (49.76)

396 (50.64)

414 (47.10)

98 (51.85)

26 (44.07)

Breastfed at 6 weeks

 Yes

1647 (66.84)

374 (61.61)

504 (65.88)

589 (68.97)

131 (71.98)

49 (87.50)