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Table 1 Descriptive statistics for the development and validation cohorts

From: Predicting mortality in The Irish Longitudinal Study on Ageing (TILDA): development of a four-year index and comparison with international measures

 

Development (N = 4,121)

Validation (N = 4,053)

Demographics

N

%

N

%

 Gender

Male

1,887

46

1,857

46

 Age (Years)

50–54

803

19

819

20

 

55–59

829

20

822

20

 

60–64

717

31

677

29

 

65–69

599

15

600

15

 

70–74

475

12

490

12

 

75–79

374

9

341

8

 

80–84

213

5

183

5

 

85 + 

110

3

121

3

Cardiovascular (CV) Illness

 Heart attack

186

5

192

5

 Chronic heart failure

49

1

38

1

 Stroke

61

1

72

2

 Angina

233

6

216

5

 Arrhythmia

578

14

534

13

 High cholesterol

1,596

39

1,515

37

 High blood pressure

1,561

38

1,470

36

Non-CV Serious Illness

 Diabetes

323

8

311

8

 Cancer

230

6

282

7

 Lung disease

175

4

155

4

 Dementia

9

0

6

0

 Psychological/Emotional problems

335

8

358

9

 Arthritis

1,112

27

1,143

28

Health Behaviour

 Smoked past age 30

1,096

27

1,082

27

 Smoke currently

749

18

741

18

 Ever smoked

2312

56

2295

57

 Drink alcohol daily

223

7

214

6

 Often troubled by pain

1,466

36

1,430

35

 Fallen in last year

808

20

775

19

 Incontinence in last year

520

13

504

12

 Visual impairment

689

17

684

17

 Hearing impairment

88

2

106

3

Functional Variables

Activities of daily living difficulty

  Bathing

129

3

142

4

  Using the toilet

38

1

53

1

  Eating

24

1

34

1

  Walking across a room

43

1

54

1

  Dressing

245

6

271

7

 Getting out of bed

74

2

76

2

Instrumental Activities of daily living difficulty

  Using the phone

26

1

32

1

  Shopping for groceries

147

4

170

4

  Preparing meals

83

2

109

3

  Taking medication

34

1

51

1

  Managing money

50

1

77

2

 Doing household chores

185

4

211

5

Other measures of functional difficulties

  Walking 100 m

303

7

298

7

  Climbing 1 flight of stairs

302

7

331

8

  Climbing several flights of stairs

1,245

30

1,250

31

  Pushing/pulling heavy objects

534

13

507

13

  Getting out of bed

74

2

76

2

  Vigorous physical exercise in last week

1,046

25

1,026

25

  Lifting 10lbs

786

19

710

18

  Stooping, crouching, kneeling

1,129

27

1,133

28

  Reach above shoulders

304

7

347

9

  Picking up a coin

151

4

180

4

  Getting up from a chair

698

17

772

19

  Sitting for long periods of time

425

10

461

11