Table 1 |
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|
Baseline characteristics of study groups |
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| Runners' Association (n = 492) |
Community controls (n = 374) |
Runners |
||
|
|
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| Ever (n = 565) |
Never (n = 301) |
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|
|
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| Male (%) |
83 |
56 |
84 |
50 |
| Mean (SE) |
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| 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 |
|
|
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|
ap < 0.05 Runners' Association versus community controls or Ever-Runners versus Never-Runners. BMI, body mass index; VAS, visual analog scale. |
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|
Bruce et al. Arthritis Research & Therapy 2005 7:R1263 doi:10.1186/ar1825 |
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