Table 1 Characteristics of UK respondents compared to UK national values

Age

(n = 688)

Women giving birth in England

 Under 20

2(0.3%)

4.6^a

 20–24

27 (3.9%)

18.2^a

 25–29

140 (20.4%)

28.1^a

 30–34

266 (38.7%)

29.7^a

 35–39

197 (28.6%)

15.5^a

 40+

56 (8.1%)

3.9^a

Ethnicity

(n = 683)

 White

652 (95.5%)

86.0^b

 Black

7 (1.0%)

3.3^b

 Asian

8 (1.2%)

7.5^b

 Mixed

16 (2.3%)

2.2^b

BMI

(n = 663)

All women in England

  < 25

286 (43.2%)

42.8^c

 Overweight

213 (32.1%)

33.4^c

 Obese

164 (24.7%)

23.8^c

Occupation

(n = 683)

Female UK residents aged 16–74

 Higher managerial, administrative and professional occupations

357 (52.3)

29.0^d

 Intermediate occupations

117 (17.1)

24.0^d

 Routine and manual occupations

59 (8.6)

31.0^d

 Long-term unemployed or never worked

1 (0.1)

6.0^d

 Not classified

149 (21.9)

–

Number of children birthed

(n = 681)

 1

322 (46.8)

 2

259 (37.6)

 3 or more

107 (15.6)