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Table 2 Sociodemographic characteristics of the respondents across the three surveys and of all women giving birth in England in 2020

From: Impact of sampling and data collection methods on maternity survey response: a randomised controlled trial of paper and push-to-web surveys and a concurrent social media survey

Population-level data for England# N = 585,195

Paper survey N = 2,446

Push-to web survey N = 2,165

Social media survey N = 1,316*

 

%

n

%

n

%

n

%

Age (years)

N = 613,844^

N = 2,408

N = 2,154

N = 1,315

16–19

2.6

11

0.5

14

0.6

3

0.2

20–24

13.0

143

5.9

162

7.5

47

3.6

25–29

26.8

539

22.4

436

20.2

327

24.9

30–34

33.5

912

37.9

866

40.2

583

44.3

35–39

19.3

634

26.3

545

25.3

286

21.7

40 + 

4.8

169

7.0

131

6.1

69

5.2

Ethnicity†

N = 584,509

N = 2410

N = 2138

N = 1,313

White

72.4

2,065

85.7

1,846

86.3

1,253

95.4

Asian

13.0

208

8.6

172

8.0

19

1.4

Black

5.2

69

2.8

57

2.6

6

0.5

Mixed / Other

9.5

68

2.8

63

2.9

35

2.7

Country of birth

N = 585,195

N = 2,403

N = 2,157

N = 1,316

UK

69.8

1,904

79.2

1,746

80.9

1,206

91.6

Outside UK

30.2

499

20.8

411

19.1

110

8.4

IMD

N = 585,195

N = 2,446

N = 2,165

N = 1,287

1st (least advantaged)

25.6

347

14.2

351

16.2

165

12.8

2nd

22.4

463

18.9

413

19.1

211

16.4

3rd

19.5

487

19.9

470

21.7

314

24.4

4th

17.3

581

23.8

489

22.6

312

24.2

5th (most advantaged)

15.3

568

23.2

442

20.4

285

22.1

Living with partner+

N = 585,195

N = 2,446

N = 2,165

N = 1,316

Yes

84.6

2,189

89.5

1,955

90.3

1,268

96.4

No

15.4

257

10.5

210

9.7

48

3.6

Age when leaving education

 

N = 2,416

N = 2,147

N = 1,313

16 years or younger

NA

269

11.1

245

11.4

94

7.2

17–18 years

NA

660

27.3

566

26.4

303

23.1

19 years or older

NA

1,487

61.5

1,336

62.2

916

69.8

Region

N = 585,195

N = 2,446

N = 2,165

N = 1,306

North East

4.3

107

4.4

100

4.6

55

4.2

North West

13.0

256

10.5

258

11.9

133

10.2

Yorkshire & the Humber

9.6

221

9.0

195

9.0

118

9.0

East Midlands

8.0

200

8.2

164

7.6

90

6.9

West Midlands

10.9

255

10.4

218

10.1

158

12.1

East of England

11.0

298

12.2

243

11.2

158

12.1

London

19.1

398

16.3

370

17.1

147

11.3

South East

15.5

435

17.8

389

18.0

236

18.1

South West

8.6

276

11.3

228

10.5

211

16.2

Parity

N = 613,936^

N = 2,363

N = 2,144

N = 1,314

Primiparous

44.2

1,222

51.7

1,111

51.8

882

67.1

Multiparous

55.8

1,141

48.3

1,033

48.2

432

32.9

Multiplicity

N = 613,936^

N = 2,426

N = 2,162

N = 1,314

Single birth

98.6

2,388

98.4

2,131

98.6

1,283

97.6

Multiple birth

1.4

38

1.6

31

1.4

31

2.4

  1. *In the social media survey, the majority (1,316 out of 1,622, 81.1%) of women were living in England at the time of survey participation and only these women were included in the analysis
  2. #Distribution similar to ONS sample (respondents and non-respondents) for two week period in May 2020 – biggest percentage difference = 0.6%
  3. ^Data for England and Wales combined
  4. †Ethnicity relates to baby for population-level data and to mother for survey data
  5. +Based on registration status (yes = registered in married names or joint names, same address) for population-level data
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BMC Medical Research Methodology

ISSN: 1471-2288

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