Table 1 |
||||||
|
Distribution of cases and controls |
||||||
|
Age at inclusion in study (years) |
Age used for exposure analysis (years) |
|||||
|
|
|
|||||
|
Gender |
n |
Mean |
Standard deviation |
Mean |
Standard deviation |
|
|
|
||||||
|
Cases |
Female |
438 |
62.0 |
9.6 |
59.6 |
9.8 |
|
Male |
301 |
60.0 |
11.1 |
57.1 |
11.2 |
|
|
Controls |
Female |
303 |
57.8 |
11.8 |
54.8 |
11.8 |
|
Male |
268 |
53.9 |
12.7 |
50.9 |
12.7 |
|
|
|
||||||
|
Klussmann et al. Arthritis Research & Therapy 2010 12:R88 doi:10.1186/ar3015 |
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