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Table 1 Basic characteristics of study sample (n = 92,640)

From: Course of frailty stratified by physical and mental multimorbidity patterns: a 5-year follow-up of 92,640 participants of the LifeLines cohort study

Characteristics:

  

Demographics:

• Age (years)

mean (SD)

51.4 (8.9)

• Female gender

n (%)

53,757 (58.0%)

Level of education:

Lower

n (%)

34,688 (37.6%)

Middle

n (%)

33,593 (36.4%)

Higher

n (%)

24,045 (26.0%)

• Partner

n (%)

82,020 (88.6%)

Chronic diseases:

• Psychiatric disorders

n (%)

19,536 (21.1%)

• Musculoskeletal diseases

n (%)

18,401 (19.9%)

• Brain diseases

n (%)

18,477 (19.9%)

• Lung disease

n (%)

10,652 (11.5%)

• Heart disease

n (%)

10,695 (11.5%)

• Endocrine disease

n (%)

6177 (6.7%)

• Gastrointestinal diseases

n (%)

2106 (2.3%)

• Cancer

n (%)

5545 (6.0%)

• Cerebrovascular disease

n (%)

1159 (1.3%)

• Kidney disease

n (%)

527 (0.6%)

Lifestyle characteristics:

Smoking:

Former smoker

n (%)

36,304 (39.5%)

Current smoker

n (%)

17,186 (18.6%)

• Body mass index (kg/m2)

Mean (SD)

26.6 (4.3)

• Alcohol use

No

n (%)

21,737 (23.5%)

Social

n (%)

62,115 (67.0%)

Problematic

n (%)

8788 (9.5%)

Frailty:

• Frailty index—64 deficits version

mean (SD)

0.13 (0.06)

• Frailty index—35 deficits version

mean (SD)

0.11 (0.06)

  1. The following variables had missing data: level of education (n = 314, 0.34%), partner status (n = 36, 0.04%), smoking (n = 438, 0.47%), and body mass index (n = 35, 0.04%)