Table 1.
Participants’ general characteristics
| Totala
(n = 1479) |
Arthritisb | |||
|---|---|---|---|---|
| Hand OAc
(n = 35) |
Hip or knee OAc
(n = 126) |
RA (n = 17) |
||
| Mean years of age (SD) | 45 (18) | 63 (12) | 63 (13) | 55 (13) |
| Female (%) | 904 (61) | 26 (74) | 68 (54) | 13 (76) |
| Mean comorbidities (SD) | 1 (1.2) | 2 (1) | 2 (1) | 1 (0.4) |
| Mean BMI (SD) | 28 (5) [missing: 22] |
29 (5) | 29 (5) | 29 (4) [missing:1] |
| Smokers (%) | 139 (9) | 2 (6) | 10 (8) | 0 (0) |
| Mean level of wealth (SD) | 6 (3) [missing 1] |
5 (3) | 5 (3) | 5 (2) |
| Disability (%) | 251 (17) | 23 (63) | 60 (48) | 10 (59) |
SD standard deviation, BMI body mass index, missing number of participants with missing data, OA osteoarthritis, RA rheumatoid arthritis
aData from participants not assessed for diagnostic confirmation are not included
bData from participants diagnosed with non-specific arthritis are not described
cCases with combined hand and hip or hand and knee OA were considered in the estimation of both the hand and the hip or knee osteoarthritis parameters