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Table 1 Baseline characteristics of the study population stratified by vital status.

From: Self-perceived quality of life predicts mortality risk better than a multi-biomarker panel, but the combination of both does best

Characteristics

Survivors (N = 3,803)

Decedents (N = 456)

p *

Gender, female

53.2

32.2

< 0.001

Age, years

47.0 (34.2; 60.4)

70.3 (63.4; 76.2)

< 0.001

Physical component scale (PCS-12)

48.1 (44.2; 50.3)

43.9 (39.1; 48.8)

< 0.001

Mental component scale (MCS-12)

44.4 (40.7; 47.6)

46.1 (41.6; 50.2)

< 0.001

General health, %

  

< 0.001

   very good & good

18.7

5.3

 

   fair

64.5

53.7

 

   poor & very poor

16.8

41.0

 

Civil status (cohabiting), %

76.3

67.4

< 0.001

Educational level, %

  

< 0.001

   < 10 y

35.5

75.3

 

   = 10 y

48.3

17.6

 

   > 10 y

16.2

7.1

 

Occupational status, %

  

< 0.001

   Worker

15.7

2.9

 

   Employee

32.4

4.4

 

   Academic/self-employed

5.9

1.8

 

   No paid job

46.0

90.9

 

Household income, €

949.0 (636.8; 1214.3)

970.5 (703.0; 1175.0)

0.464

Smoking status, %

  

< 0.001

   Never

36.1

32.2

 

   Former

32.8

42.9

 

   Current

31.1

24.9

 

Subject's medical history, %

   

   Hypertension

20.8

46.2

< 0.001

   Myocardial infarction

2.6

9.6

< 0.001

   Stroke

1.6

8.1

< 0.001

   Diabetes mellitus

4.8

20.2

< 0.001

Riskful alcohol consumption, %

14.8

12.2

0.137

Physically active, %

44.1

24.5

< 0.001

Waist circumference, cm

88.1 (78.0; 98.2)

97.2 (89.0; 104.2)

< 0.001

Food consumption, %

  

< 0.001

   Unfavorable

35.4

48.1

 

   Regular

22.5

27.1

 

   Optimal

42.1

24.8

 

High sensitive C-reactive protein, mg/l

1.25 (0.62; 2.90)

2.48 (1.17; 5.59)

< 0.001

Fibrinogen, g/l

2.83 (2.50; 3.33)

3.25 (2.76; 3.80)

< 0.001

Glycated hemoglobin, %

5.3 (4.9; 5,7)

5.8 (5.3; 6,4)

< 0.001

Total cholesterol, mmol/l

5.66 (4.91; 6.47)

5.89 (5.15; 6.55)

0.009

Triglycerides, mmol/l

1.45 (0.99; 2.22)

1.74 (1.24; 2.68)

< 0.001

Albumin (urine), mg/l

7.5 (4.2; 15.2)

12.1 (6.1; 33.6)

< 0.001

Gamma glutamyltransferase, μmol/L s

0.33 (0.23; 0.55)

0.40 (0.27; 0.76)

< 0.001

Glomerular filtration rate, ml/min

75.3 (66.7; 84.1)

66.8 (56.8; 78.4)

< 0.001

Thyrotropin, mU/l

0.67 (0.45; 0.98)

0.59 (0.36; 0.91)

< 0.001

Insulin-like growth factor-I, ng/ml

136.0 (105.2; 174.4)

107.5 (82.6; 142.2)

< 0.001

  1. Data are percentages or median (25th; 75th).
  2. * p-values based on χ2 (qualitative data) or Mann-Whitney-U test (quantitative data).
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BMC Medical Research Methodology

ISSN: 1471-2288

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