Table 1 Number (%) of respondents by year 2 characteristics and year 10 status. Missing data excluded.

Total

3120

1373

342

3992

Centre

Cambridgeshire

644

(21)

247

(18)

61

(18)

768

(19)

Gwynedd

698

(22)

306

(22)

51

(15)

648

(16)

Newcastle

575

(18)

232

(17)

66

(19)

834

(21)

Nottingham

511

(16)

291

(21)

54

(16)

877

(22)

Oxford

692

(22)

297

(22)

110

(32)

865

(22)

Women

1,887

(60)

900

(66)

233

(68)

2,211

(55)

[Age [Median (Interquartile range(IQR))]

71

(68–75)

72

(69–77)

72

(68–78)

78

(72–83)

Married/cohabiting

1,825

(59)

776

(57)

187

(55)

1,712

(43)

Residential/nursing home

15

()

24

(2)

5

(1)

410

(10)

Social class IV/V

492

(16)

275

(21)

33

(10)

759

(20)

Years of education <=9

1,711

(55)

855

(63)

182

(54)

2,532

(65)

Ever smoked

2,030

(65)

832

(61)

207

(61)

2,641

(68)

MMSE < 18

17

(1)

36

(3)

6

(2)

393

(10)

MMSE [Median (IQR)]

28

(26–29)

27

(24–28)

27

(24–28)

26

(22–28)

Townsend ADL 11+

130

(4)

98

(7)

317

(6)

2,672

(25)

ADL [Median (IQR)]

1

(0–3)

1

(0–4)

1

(0–3)

4

(1–11)

Fair/Poor self perceived health

620

(20)

353

(27)

62

(19)

1,392

(39)

Sight or hearing problem

583

(19)

280

(20)

80

(23)

1,277

(32)

Screening AGECAT O3+

26

(1)

47

(3)

6

(2)

516

(13)

Self reported depression

357

(12)

160

(12)

41

(12)

390

(11)

Chronic disease‡

1,894

(61)

847

(63)

211

(63)

2,818

(74)

Dementia prevalence

1

(0.5–2.1)

3.5

(1.8–6.6)

3.0

(0.9–9.5)

15.6

(13.6–18.6)

Depression prevalence

7

(0.5–10.0)

8.0

(0.5–11.9)

9.2

(4.1–19.1)

12.2

(10.0–15.0)

Family history of dementia

500

(16)

165

(12)

53

(16)

445

(12)

Disability

No ADL-IADL disability

2,491

(81)

986

(74)

261

(77)

1,770

(47)

IADL disability only

432

(14)

219

(16)

56

(17)

768

(20)

ADL disability

163

(5)

134

(10)

20

(6)

1,222

(33)

Alcohol

Don't drink

280

(10)

147

(12)

19

(6)

435

(12)

Drink, not to excess

2,013

(71)

852

(69)

226

(74)

2,267

(65)

Drink, excessive drinking

531

(19)

238

(19)

59

(19)

793

(23)

Cardiovascular diseases*

None

1,751

(57)

721

(54)

204

(60)

1,658

(45)

One

919

(30)

391

(29)

86

(25)

1,217

(33)

Two or more

426

(14)

215

(16)

48

(14)

800

(22)

Stroke

140

(5)

79

(6)

15

(4)

499

(14)