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Table 1 General characteristics of the study population at baseline

From: Mortality among persons experiencing musculoskeletal pain: a prospective study among Danish men and women

Variables All
(n = 4806)
MSK pain within last 14 days
n = 1971
(41.0%)
No MSK pain
n = 2835
(59.0%)
Age (mean ± SD) 44.5 ± 0.27 46.9 ± 0.42 42.9 ± 0.34
Age
16–44 (%) 54.7 37.3 62.7
45–64 (%) 27.6 43.6 56.4
≥ 65 17.8 48.6 51.4
Sex
Men (%) 47.9 42.3 51.7
Women (%) 52.2 57.7 48.3
Marital status
Married or cohabitant (%) 66.9 66.7 67.1
Widow(er) (%) 7.8 9.5 6.6
Divorced (%) 5.9 6.9 5.2
Unmarried (%) 19.4 16.8 21.1
Education level (years)
< 10 years (%) 28.6 30.9 26.9
10 years (%) 9.8 8.6 10.6
11–12 years (%) 10.4 9.6 10.9
13–14 years (%) 26.7 26.0 27.5
15+ years (%) 9.25 8.0 10.2
Missing (%) 15.2 16.9 13.9
Physical activity
Vigorous or Moderate (%) 21.1 17.9 23.4
Light (%) 65.5 65.1 65.7
Sedentary (%) 13.4 17.0 10.9
Stressed in daily life
Often (%) 6.0 8.3 4.4
From time to time (%) 30.5 31.9 29.6
Never or almost never (%) 63.5 59.5 65.7
Don’t know (%) 0.3 0.3 0.4
Meet up with friends or acquaintance
Daily or almost daily (%) 29.3 28.2 30.1
1–2 times a week/month (%) 54.5 63.6 65.1
Less often or never (%) 6.2 8.2 4.8
Comorbiditya
No (%) 87.8 84.9 89.8
Low (%) 8.2 10.7 6.6
Medium/high (%) 4.0 4.5 3.6
Smokingb
Daily (%) 41.9 44.7 40.0
Occasional (%) 3.6 3.4 3.7
No (%) 54.5 51.9 56.3
Spread of pain
No areas (%) 59.0   
One area (%) 24.0   
Two areas (%) 12.7   
Three areas (widespread) (%) 4.3   
Pain intensity categorical
No pain (0–4) (%) 60.1   
Mild (5–44) (%) 24.9   
Moderate (45–74) (%) 11.7   
Strong (75–100) (%) 3.2   
  1. aNo comorbidity: Charlson score = 0; low comorbidity: Charlson score = 1; and medium/high: Charlson score = ≥2
  2. bN = 3198: question on smoking only applied in two out of three interview session