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Table 2 Baseline predictors of deaths from all causes during follow-up

From: Hypnotics and mortality in an elderly general population: a 12-year prospective study

  

Deaths-all causes

  
  

No N = 5,389

Yes N = 1,307

  

Variable

 

n

%

n

%

Hazard ratio [95% CI]a

P a

High level of educationb

No

4,337

80.48

1,044

79.88

1

0.06

 

Yes

1,052

19.52

263

20.12

0.87 [0.76;1.00]

 

Living alone

Yes

1,782

33.07

433

33.13

1

0.84

 

No

3,607

66.93

874

66.87

1.01 [0.89;1.15]

 

Confinement

No

5,181

96.14

1,158

88.60

1

0.0001

 

Yes

208

3.86

149

11.40

1.78 [1.49;2.13]

 

Alcohol intake (g/day)

<12

1,062

19.71

242

18.52

1.23 [1.06;1.42]

0.01

 

12 to 36

3,900

72.37

911

69.70

1

 
 

>36

427

7.92

154

11.78

1.14 [0.96;1.36]

 

Caffeine intake (mg/day)

≤125

1,362

25.27

371

28.39

1

0.86

 

125 to 375

3,164

58.71

775

59.30

0.97 [0.85;1.09]

 
 

>375

863

16.01

161

12.32

0.97 [0.81;1.17]

 

Smoking status

Never

3,368

62.50

634

48.51

1

<0.0001

 

Past

1,740

32.29

563

43.08

1.22 [1.07;1.40]

 
 

Current

281

5.21

110

8.42

1.73 [1.41;2.14]

 

History of cardiovascular diseasec

No

4,079

75.69

768

58.76

1

0.0001

 

Yes

1,310

24.31

539

41.24

1.49 [1.33;1.67]

 

Respiratory disease

No

5,121

95.03

1,188

90.90

1

0.0001

 

Yes

268

4.97

119

9.10

1.64 [1.36;1.98]

 

Thyroid disease

No

4,890

90.74

1,219

93.27

1

0.19

 

Yes

499

9.26

88

6.73

1.16 [0.93;1.45]

 

Depressive symptomatology

No

4,209

78.10

983

75.21

1

0.0005

 

Yes

1,180

21.90

324

24.79

1.26 [1.11;1.43]

 

Antidepressant use

No

5,072

94.12

1,205

92.20

1

0.0002

 

Yes

317

5.88

102

7.80

1.47 [1.20;1.80]

 

Spielberger trait anxiety

<43

3,509

65.11

894

68.40

1

0.13

 

≥43

1,880

34.89

413

31.60

1.10 [0.97;1.23]

 

Mini Mental State Examination Score

≥ 26

4,666

86.58

1,083

82.86

1

0.005

 

<26

723

13.42

224

17.14

1.23 [1.07;1.43]

 

Body mass index (kg/m2)

Normal (<25)

2,611

48.45

613

46.90

1

0.0007

 

Overweight (25 to 29)

2,118

39.30

503

38.49

1.01 [0.90;1.14]

 
 

Obese (≥30)

660

12.25

191

14.61

1.36 [1.15;1.60]

 

Hypertension

No

2,313

42.92

400

30.60

1

0.002

 

Yes

3,076

57.08

907

69.40

1.21 [1.07;1.36]

 

Diabetes mellitus

No

4,965

92.13

1,126

86.15

1

0.0001

 

Yes

424

7.87

181

13.85

1.58 [1.35;1.85]

 

Hypercholesterolemia

No

3,333

61.85

875

66.95

1

0.99

 

Yes

2,056

38.15

432

33.05

1.00 [0.89;1.12]

 

Snoring loudly (n = 5,972)

Never/Rarely

3,114

64.93

770

65.48

1

0.90

 

Frequently/Often

1,682

35.07

406

34.52

1.01 [0.89;1.14]

 

Difficulties in initiating sleep

Never/Rarely

3,506

65.06

895

68.48

1

0.20

 

Frequently/Often

1,883

34.94

412

31.52

0.92 [0.81;1.04]

 

Difficulties in maintaining sleep

Never/Rarely

2,055

38.13

429

32.82

1

0.26

 

Frequently/Often

3,334

61.87

878

67.18

1.07 [0.95;1.20]

 

Early morning awakening

Never/Rarely

3,434

63.72

871

66.64

1

0.12

 

Frequently/Often

1,955

36.28

436

33.36

0.91 [0.81;1.02]

 

Number of insomnia complaintsd

0

1,526

28.32

320

24.48

1

0.07

 

1

1,595

29.60

460

35.20

1.14 [0.99;1.31]

 
 

2

1,227

22.77

315

24.10

1.08 [0.92;1.26]

 
 

3

1,041

19.32

212

16.22

0.92 [0.77;1.11]

 

Excessive daytime sleepiness

Never/Rarely

4,555

84.52

994

76.05

1

0.003

 

Frequently/Often

834

15.48

313

23.95

1.23 [1.07;1.40]

 
  1. aAdjusted for center study, gender and age; buniversity level; chistory of cardiovascular disease (stroke or coronary heart disease; dnumber of insomnia complaints: difficulties in initiating sleep + difficulties in maintaining sleep + early morning awakening.