Table 2.
Baseline Characteristics of Continuous Variables by Arthritis Status
| No Arthritis* (n=83,295) |
OA * (n=63,402) |
RA* (n=960) |
||||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | |
| Age (yrs) | 61.89 | 7.14 | 64.81 | 7.01 | 64.75 | 7.12 |
| Height (cm) | 162.00 | 6.58 | 161.50 | 6.73 | 161.10 | 6.76 |
| Weight (kg) | 71.74 | 15.94 | 75.45 | 17.71 | 73.18 | 17.78 |
| Body Mass Index (kg/m2) | 27.19 | 5.49 | 28.78 | 6.28 | 28.10 | 6.40 |
| Years Since Menopause | 13.60 | 9.36 | 16.90 | 9.62 | 16.71 | 9.97 |
| Total Calcium Intake (mg) | 1,148.00 | 750.00 | 1,207 | 734.10 | 1,264.00 | 837.60 |
| Total Vitamin D Intake (mg) | 8.92 | 6.87 | 9.66 | 7.12 | 9.88 | 6.84 |
| CES-D Depression Score | 0.03 | 0.11 | 0.05 | 0.14 | 0.05 | 0.14 |
| Total Physical Activity per Week (METS) | 13.35 | 14.34 | 11.53 | 12.92 | 9.58 | 11.46 |
| General Health Construct | 78.52 | 16.00 | 70.03 | 18.07 | 57.26 | 20.35 |
OA: Osteoarthritis
RA: Rheumatoid arthritis
*
All variables significantly different between the three groups at P<0.001