Table 1 Characteristics of the study population according to frailty assessed by FI-LAB.

From: Prediction of mortality in Chinese very old people through the frailty index based on routine laboratory data

 

Frailty

P value

No (n = 364)

Yes (n = 372)

Age (years)

93.7 ± 3.4

93.5 ± 3.4

0.418

Female (%)

75.8

59.4

<0.001**

BMI (kg/m2)

19.5 ± 3.2

19.1 ± 3.7

0.087

Weight (kg)

41.2 ± 8.1

41.4 ± 8.9

0.697

Height (cm)

145.4 ± 9.7

147.6 ± 10.2

0.003**

WC (cm)

77.1 ± 9.7

77.1 ± 9.1

0.945

SBP (mmHg)

141.4 ± 22.8

138.8 ± 23.1

0.128

DBP (mmHg)

73.4 ± 12.6

72.3 ± 11.6

0.233

Education level (%)

   Illiteracy

76.9

67.9

 

   Primary school

20.4

29.9

 

   Secondary school or advanced

2.8

2.2

0.012*

Smoking (%)

39.8

47.0

0.049

Alcohol drinking (%)

26.6

25.1

0.637

Having exercise habit (%)

40.2

37.0

0.379

TG (mmol/l)

1.2 ± 0.7

1.2 ± 0.7

0.804

TC (mmol/l)

4.3 ± 0.7

4.0 ± 0.9

<0.001**

HDL-C (mmol/l)

1.6 ± 0.5

1.5 ± 0.7

0.180

LDL-C (mmol/l)

2.3 ± 0.6

2.2 ± 0.6

0.017*

SUA (μmol/l)

311.1 ± 74.9

328.7 ± 97.8

0.006**

Hypertension

9.6

10.5

0.695

Cardiovascular disease

4.9

4.6

0.811

Cerebrovascular disease

2.7

1.3

0.187

Diabetes

1.4

0.5

0.282

Respiratory disease

17.6

12.9

0.077

Digestive disease

16.8

17.7

0.724

Chronic renal disease

2.5

2.4

0.963

Osteoarthritis

28.8

29.8

0.767

Status of survival

   

Surviving (%)

50.8

42.2

 

Death (%)

49.2

57.8

0.019*

  1. Data are the mean ± SD unless otherwise indicated. *P < 0.05, **P < 0.01.
  2. Abbreviations: BMI, body mass index; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; SUA, serum uric acid; TC, total cholesterol; TG, triglycerides; WC, waist circumference; SBP, systolic blood pressure; DBP, diastolic blood pressure; SD, standard deviation.