Features | EOA (n = 67) | Non-EOA (n = 31) | p Value |
---|---|---|---|
Results are shown as mean (SD) unless otherwise indicated. | |||
*Median (interquartile range) or †number of cases; p values for continuous variables from Mann-Whitney and for binary variables from Fisher’s exact test; ‡multivariate regression analysis adjusted for BMI, current smoking, former smoking, age, sex, and hormone replacement therapy; ¶information available for 38 patients; §information available for 15 patients. | |||
Age (years) | 61.7 (8.5) | 55.9 (9.7) | 0.02 |
Body mass index (kg/m2) | 24.2 (3.5) | 24.6 (4.4) | NS |
Women† | 60 | 29 | NS |
Hormone replacement therapy† | 8 | 5 | NS |
Smoking:† | |||
Never | 53 | 23 | NS |
Former | 8 | 4 | NS |
Current | 6 | 4 | NS |
Age of disease onset (years) | 51.1 (9.7) | 49.9 (8.2) | NS |
Range | 41–61 | 41–59 | |
Disease duration (years) | 10.5 (9.9) | 9.7 (8.5) | NS |
hsCRP (mg/l)* | 4.7 (2.4–6.9) | 2.1 (0.5–4.9) | 0.002‡ |
Number of clinically active joints | 10.7 (4.5) | 8.2 (4.5) | 0.003 |
Number of scintigraphically active joints | 6.3 (4.4)¶ | 5.1 (2.5)§ | NS |
Radiographic score | 64.3 (29.7) | 27.8 (16.5) | <0.001 |