Table 1

Baseline characteristics of study groups

Runners' Association (n = 492)

Community controls (n = 374)

Runners


Ever (n = 565)

Never (n = 301)


Male (%)

83

56

84

50

Mean (SE)

Age (years)

61.6 (0.25)a

65.1 (0.36)

61.7 (0.25)a

65.6 (0.41)

Education (years)

16.6 (0.11)

16.7 (0.13)

16.7 (0.10)

16.5 (0.15)

BMI (kg/m2)

22.9 (0.11)a

24.2 (0.18)

23.0 (0.11)a

24.3 (0.21)

Pain (VAS 0–100; 0 = no pain)

20.7 (1.05)a

25.7 (1.27)

20.4 (0.98)a

26.6 (1.44)

Hospital days/past year

0.27 (0.05)

0.34 (0.08)

0.24 (0.05)

0.41(0.09)

Running miles (week)

25.5 (0.65)a

2.1 (0.30)

23.1 (0.64)a

1.06 (0.29)

Exercise minutes (week)

313.6 (9.2)a

123.2 (6.8)

290.8 (8.7)a

119.9 (7.2)

Cigarette (packs/day)

0.02 (0.01)a

0.08 (0.02)

0.01 (0.01)a

0.11 (0.02)

Alcohol (oz./day)

1.08 (0.06)

1.22 (0.06)

1.11 (0.05)

1.22 (0.07)

Subjects (%) with history of

Arthritis

35

41

35*

43

Fractures

53

47

52

48

Cancer

0.002

0.005

0.004

0.003


ap < 0.05 Runners' Association versus community controls or Ever-Runners versus Never-Runners. BMI, body mass index; VAS, visual analog scale.

Bruce et al. Arthritis Research & Therapy 2005 7:R1263-R1270   doi:10.1186/ar1825

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