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Table 1 Baseline characteristics of the study sample stratified by mortality status at 1 September 2011

From: Relative importance of four functional measures as predictors of 15-year mortality in the older Dutch population

 

Total

Survivor

Non-survivor

P

No. of subjects

1505

474

1031

 

Age

76.0 ± 6.6

71.2 ± 4.7

78.1 ± 6.3

< 0.001

Gender

   

< 0.001

 male

727

177 (24.3)

550 (75.7)

 

 female

778

297 (38.2)

481 (61.8)

 

Urbanicity level

   

0.003

 Not (< 500 addresses/km2)

280

96 (34.3)

184 (65.7)

 

 Little (500–1000)

325

118 (36.3)

207 (63.7)

 

 Somewhat (1000-1500)

154

55 (35.7)

99 (64.3)

 

 Highly (1500–2500)

367

104 (28.3)

263 (71.7)

 

 Very highly (> 2500)

378

101 (26.7)

277 (73.3)

 

Education level

 - Years

8.9 ± 3.3

9.1 ± 3.2

8.8 ± 3.4

0.038

Living with partner

 - Yes

809

299 (37.0)

510 (63.0)

 

 - No

696

175 (25.1)

521 (74.9)

< 0.001

Smoking

   

< 0.001

 - Never

537

203 (37.8)

334 (62.2)

 

 - Former

678

218 (32.2)

468 (67.8)

 

 - Current

288

53 (18.4)

235 (81.6)

 

Alcohol use

   

0.004

 - None

386

96 (24.9)

290 (75.1)

 

 - Light

746

264 (35.4)

482 (64.6)

 

 - Moderate

283

89 (31.4)

194 (68.6)

 

 - (Very) Excessive

87

25 (28.7)

62 (71.3)

 

BMI

   

0.011

 - Underweight (< 20)

57

7 (12.3)

50 (87.7)

 

 - Normal (20–24)

451

154 (34.1)

297 (65.9)

 

 - Overweight (25–29)

662

214 (32.3)

448 (67.7)

 

 - Obese (> 30)

307

97 (31.6)

210 (68.1)

 

 No. of chronic diseases

1.7 ± 1.3

1.5 ± 1.1

1.9 ± 1.3

< 0.001

MMSE score

   

< 0.001

 ≤23

208

12 (5.8)

196 (94.2)

 

 ≥24

1293

462 (35.7)

831 (64.3)

 

Lower-body performance score (0–12)

7.1 ± 3.3

8.6 ± 2.5

6.4 ± 3.4

< 0.001

Walk test (0–4)

2.4 ± 1.2

2.9 ± 1.1

2.2 ± 1.2

< 0.001

Chair stand test (0–4)

1.9 ± 0.8

2.1 ± 0.8

1.8 ± 0.8

< 0.001

Tandem stand (0–4)

2.4 ± 0.9

2.7 ± 0.6

2.2 ± 0.9

< 0.001

Handgrip strength (kg)

29.0 ± 10.3

30.5 ± 9.8

28.3 ± 10.4

< 0.001

Peak flow (60-780 ml)

373 ± 126

417 ± 117

353 ± 125

< 0.001

Functional limitation score (6–30) a

26.3 ± 5.1

28.2 ± 3.2

25.5 ± 5.6

< 0.001

  1. Continuous variables are expressed as mean (S.D.) for normally distributed variables or median (interquartile range) for skewed variablesa. Categorical variables are listed in numbers (%).X2 is used for categorical variables, independent T-test for continuous variables with a normal distribution and Mann-Whitney-U for skewed variables
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BMC Geriatrics

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