| Variable name | Description | Range | % miss | Mean | Mode |
| Sex | 0 = Female, 1 = Male | 0/1 | 0 |
|
|
| Age | Patient age in years | 18 - 88 | 0 | 59.5 | 57 |
| Time | Number of patient visits | 1 - 12 | 0 |
|
|
| Type | Type of arthritis (RA = 1, OA = 0) | 1/0 | 0 |
|
|
| Years | Number of years with symptom | 0 - 57 | 0 | 10.7 | 1 |
| Response variable |
|
|
|
|
|
| pain scores | scores on the arthritis pain | 1 - 6 | 35.6% |
| 4 |