Table 1

Gender and social class within the Twenty-07 and 11-16/16+ studies-baseline samples, age 18-19 (non-)responders and age 18-19 weighted data.

Baseline sample

Age 18-19 non-responders

Age 18-19 responders

Age 18-19 responders-weighted data

N

%

N

%

N

%

N

%


    Twenty-07 study (1990 dataset)

Gender-age 15

Male

482

47.8

52

51.5

430

47.4

427

47.0

Female

527

52.2

49

48.5

478

52.6

481

53.0

Total

1009

100.0

101

100.0

908

100.0

908

100.0

Social class-age 15

Non-manual

410

41.3

24

25.0

386

43.1

380

42.6

Manual

582

58.7

72

75.0

510

56.9

513

57.4

Missing

17

-

5

-

12

-

15

-

Total

1009

100.0

101

100.0

908

100.0

908

100.0

    11-16/16+ study (2003 dataset)

Gender-age 11

Male

1335

51.6

701

52.4

634

50.8

505

50.2

Female

1251

48.4

636

47.6

615

49.2

501

49.8

Total

2586

100.0

1337

100.0

1249

100.0

1006

100.0

Social class-age 11

Non-manual

1028

43.3

417

35.3

611

51.2

414

44.0

Manual

1348

56.7

765

64.7

583

48.8

527

56.0

Missing

210

-

155

-

55

-

65

-

Total

2586

100.0

1337

100.0

1249

100.0

1006 *

100.0


* Attrition-based weights based on those present at all four waves of the 11-16/16+ study reduce the size of the age 18-19 dataset to 1006 respondents

Sweeting et al. BMC Public Health 2011 11:829   doi:10.1186/1471-2458-11-829

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