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Table 3 Proportion of women attending antenatal care in each facility, by maternal characteristics and birth outcomes in worst case scenario (women with unknown attendance classified as not having attended ANC)

From: Attendance at antenatal clinics in inner-city Johannesburg, South Africa and its associations with birth outcomes: analysis of data from birth registers at three facilities

Variable

Primary care clinic

P

Secondary level hospital

P

Tertiary hospital

P

% attended (n/N)

% attended (n/N)

% attended (n/N)

ANC attendance for facility

77.1 (5813/7543)

Ìý

89.0 (3661/4113)

Ìý

93.1 (18,177/19,523)

Ìý

Maternal age (years)

 10–16

75.0 (66/88)

0.01$

-

-

91.0 (229/252)

<0.001$

 17–19

74.1 (542/731)

91.0 (1114/1224)

 20–24

75.9 (2197/2894)

91.7 (4726/5154)

 25–29

79.0 (1797/2275)

93.6 (5674/6065)

 30–34

78.0 (844/1082)

94.1 (3814/4051)

 Ìý≥Ìý35

77.6 (367/473)

94.3 (2620/2777)

Parityb

 1

-

-

-

-

93.4 (6046/6461)

0.85$

 2–4

93.4 (4642/4966)

 Ìý≥Ìý5

93.9 (448/477)

Gravidityb

 1

-

-

-

-

92.0 (5252/5708)

<0.001$

 2–4

93.4 (11,761/12,581)

 Ìý≥Ìý5

94.3 (1040/1093)

Had HIV test

 Y±ð²õ

97.2 (5023/5167)

<0.001

92.6 (3353/3621)

<0.001

95.1 (17,380/18,276)

<0.001

 N´Ç

33.3 (790/2376)

62.6 (308/492)

63.9 (797/1247)

HIV statusa

 P´Ç²õ¾±³Ù¾±±¹±ð

95.0 (1803/1897)

<0.001

92.0 (798/867)

0.47

95.0 (5180/5452)

0.72

 N±ð²µ²¹³Ù¾±±¹±ð

98.5 (3220/3270)

92.8 (2555/2754)

95.1 (12,200/12,824)

Delivery mode

 Vaginal delivery

77.1 (5813/7543)

-

87.6 (2741/3129)

<0.001

90.6 (7924/8744)

<0.001

 Caesarean section

NA

93.5 (920/984)

96.5 (9946/10,304)

Infant sex

 F±ð³¾²¹±ô±ð

77.7 (2976/3833)

0.28

88.4 (1795/2031)

0.19

94.0 (8115/8636)

0.24

 M²¹±ô±ð

76.6 (2824/3687)

89.7 (1864/2079)

93.5 (8434/9017)

Gestation at birth

 P°ù±ð³Ù±ð°ù³¾

57.7 (15/26)

0.02

80.9 (38/47)

0.20

88.8 (4551/5125)

<0.001

 T±ð°ù³¾

77.1 (5798/7517)

89.1 (3616//4058)

94.8 (12,318/12,989)

 P´Ç²õ³Ù-³Ù±ð°ù³¾

-

87.5 (7/8)

95.4 (866/908)

Infant status at birth

â€Çã±ô¾±±¹±ð

77.2 (5799/7510)

<0.001

89.1 (3647/4093)

0.32

94.1 (16,367/17,401)

<0.001

â€Çȳپ±±ô±ô²ú¾±°ù³Ù³ób

40.6 (13/32)

81.3 (13/16)

83.2 (405/487)

  1. At HCHC, no births were considered post-term. Worst case scenario is the number of women who attended ANC among all women
  2. NA not applicable as caesarean sections not done at HCHC
  3. –Data not collected in labour ward registers
  4. $Chi-square test for trend
  5. aHIV status among women with a known status
  6. bIncludes death shortly after birth.