Table 4 Determinants of obesity among women of childbearing age in South Africa

 15–24

1

1

1

1

1

1

1

 25–34

3.71***

2.79***

3.24***

3.74***

3.65***

3.24***

3.95***

(2.91–4.71)

(2.17–3.59)

(2.55–4.12)

(3.01–4.65)

(3.01–4.42)

(2.42–4.33)

(3.28–4.75)

 35–49

6.87***

6.46***

5.88***

6.53***

6.34***

6.61***

5.86***

(5.40–8.73)

(5.05–8.28)

(4.70–7.37)

(5.28–8.06)

(5.17–7.77)

(5.10–8.57)

(4.89–7.02)

 Non-Black African

1

1

1

1

1

1

1

 Black African

1.71***

1.21

1.31

1.46*

0.98

1.52*

1.03

(1.33–2.19)

(0.86–1.70)

(0.91–1.91)

(1.01–2.11)

(0.73–1.31)

(1.01–2.29)

(0.82–1.30)

 No schooling/Primary

1

1

1

1

1

1

1

 Secondary

0.90

1.11

1.29*

1.34*

1.06

1.19

1.03

(0.73–1.10)

(0.91–1.35)

(1.04–1.60)

(1.07–1.67)

(0.86–1.30)

(0.87–1.63)

(0.82–1.30)

 Tertiary

0.59**

0.93

1.29

1.38*

1.24

1.00

1.07

(0.40–0.85)

(0.67–1.27)

(0.94–1.78)

(1.01–1.88)

(0.92–1.66)

(0.65–1.55)

(0.80–1.41)

 Rural

1

1

1

1

1

1

1

 urban

1.32*

1.23

1.29*

1.24

1.09

0.88

1.23*

(1.03–1.70)

(0.95–1.59)

(1.03–1.63)

(0.99–1.54)

(0.88–1.35)

(0.69–1.13)

(1.00–1.52)

 Current smoking status

0.68*

0.73

0.87

1.21

0.65*

1.12

0.57***

(0.50–0.93)

(0.50–1.07)

(0.51–1.50)

(0.74–1.97)

(0.44–0.96)

(0.70–1.78)

(0.43–0.74)

 1 (poorest)

1

1

1

1

1

1

1

 2 (poor)

1.24

1.13

1.85***

1.23

1.09

1.40

1.28*

(0.89–1.72)

(0.82–1.56)

(1.36–2.52)

(0.96–1.56)

(0.86–1.38)

(1.00–1.96)

(1.03–1.58)

 3 (middle)

1.47*

1.23

1.77**

0.89

1.49**

1.84***

1.45**

(1.04–2.07)

(0.90–1.68)

(1.26–2.48)

(0.67–1.18)

(1.16–1.93)

(1.29–2.63)

(1.10–1.91)

 4 (rich)

1.76**

1.37

1.70**

1.47*

1.34

1.79**

1.60***

(1.22–2.53)

(0.94–1.99)

(1.16–2.50)

(1.07–2.01)

(0.96–1.87)

(1.22–2.61)

(1.24–2.06)

 5 (richest)

1.74**

1.27

1.78**

1.63*

1.26

2.19**

1.15

(1.18–2.56)

(0.80–2.04)

(1.17–2.70)

(1.09–2.45)

(0.87–1.82)

(1.33–3.59)

(0.84–1.57)

 Constant

0.042***

0.085***

0.060***

0.057***

0.12***

0.073***

0.11***

(0.027–0.063)

(0.053–0.14)

(0.037–0.097)

(0.036–0.089)

(0.084–0.19)

(0.041–0.13)

(0.076–0.16)

 Observations

4993

5785

6286

7594

9034

3262

9342