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Table 2 Associations between antenatal attendance, and access to other services 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

Univariate odds ratio

P

Multivariate odds ratio

P

Had an HIV test

 Attended ANC

 â¶ÄƒY±ð²õ

1.0

<0.001

1.0

<0.001

 â¶ÄƒN´Ç

0.04 (0.04–0.05)

0.05 (0.05–0.06)

â€ÇȾ±³Ù±ð

  Primary level

1.0

Ìý

1.0

Ìý

  Secondary level

3.38 (3.04–3.76)

<0.001

3.01 (2.66–3.41)

<0.001

  Tertiary level

6.74 (6.25–7.27)

<0.001

5.36 (4.92–5.85)

<0.001

Had a Caesarean section

 Attended ANC

 â¶ÄƒY±ð²õ

1.0

<0.001

1.0

<0.001

 â¶ÄƒN´Ç

0.34 (0.31–0.38)

0.39 (0.35–0.44)

â€ÇȾ±³Ù±ð

  Secondary level

1.0

<0.001

1.0

<0.001

  Tertiary level

3.75 (3.47–4.05)

3.35 (3.10–3.63)

 HIV status

 â¶ÄƒN±ð²µ²¹³Ù¾±±¹±ð

1.0

Ìý

1.0

Ìý

 â¶ÄƒP´Ç²õ¾±³Ù¾±±¹±ð

1.06 (1.00–1.13)

0.04

1.0 (0.94–1.06)

0.98

 â¶ÄƒU²Ô°ì²Ô´Ç·É²Ô

0.50 (0.45–0.56)

<0.001

0.64 (0.57–0.72)

<0.001

 Gestation at childbirth

  Term or post-term

1.0

<0.001

1.0

<0.001

 â¶ÄƒP°ù±ð³Ù±ð°ù³¾

1.46 (1.37–1.56)

1.24 (1.17–1.33)

Preterm birth

 Attended ANC

 â¶ÄƒY±ð²õ

1.0

0.77

1.0

<0.001

 â¶ÄƒN´Ç

1.01 (0.92–1.11)

1.59 (1.40–1.79)

â€ÇȾ±³Ù±ð

  Primary level

1.0

<0.001

1.0

<0.001

  Secondary level

3.34 (2.07–5.40)

5.41 (3.34–8.78)

  Tertiary level

106.6 (72.5–156.9)

<0.001

216.9 (146.1–322.1)

<0.001

 Infant sex

 â¶ÄƒM²¹±ô±ð

1.0

0.55

-

-

 â¶ÄƒF±ð³¾²¹±ô±ð

0.98 (0.92–1.05)

 HIV status

 â¶ÄƒN±ð²µ²¹³Ù¾±±¹±ð

1.0

<0.001

1.0

<0.001

 â¶ÄƒP´Ç²õ¾±³Ù¾±±¹±ð

1.25 (1.16–1.33)

1.33 (1.23–1.43)

 â¶ÄƒU²Ô°ì²Ô´Ç·É²Ô

1.13 (1.03–1.24)

<0.001

4.01 (3.53–4.55)

<0.001

Stillbirtha

 Attended ANC

 â¶ÄƒY±ð²õ

1.0

<0.001

1.0

0.02

 â¶ÄƒN´Ç

2.0 (1.6–2.4)

1.40 (1.06–1.85)

â€ÇȾ±³Ù±ð

  Primary level

1.0

0.78

1.0

0.08

  Secondary level

0.92 (0.50–1.67)

1.73 (0.93–3.19)

  Tertiary level

6.57 (4.59–9.40)

<0.001

16.6 (11.2–24.7)

<0.001

 HIV status

 â¶ÄƒN±ð²µ²¹³Ù¾±±¹±ð

1.0

Ìý

1.0

Ìý

 â¶ÄƒP´Ç²õ¾±³Ù¾±±¹±ð

1.12 (0.90–1.38)

0.31

1.09 (0.87–1.36)

0.46

 â¶ÄƒU²Ô°ì²Ô´Ç·É²Ô

2.38 (1.93–2.93)

<0.001

4.24 (3.29–5.48)

<0.001

 Delivery mode

  Vaginal delivery

1.0

0.14

1.0

<0.001

  Caesarean section

0.87 (0.72–1.05)

0.5 (0.4–0.6)

 Infant sex

 â¶ÄƒM²¹±ô±ð

1.0

0.004

1.0

0.004

 â¶ÄƒF±ð³¾²¹±ô±ð

0.77 (0.65–0.92)

0.76 (0.64–0.92)

  1. Caesarean sections are not done at HCHC. No births considered post-term. Worst case scenario is the number of women who attended ANC among all women (women with unknown attendance classified as not having attended ANC)
  2. aIncludes death shortly after birth