Table 2.
Linear regression analysis of DAS28-CRP and HAQ-DI.
| Variables | Estimate (B) | (95% CI) | SE | T | p-value |
|---|---|---|---|---|---|
| Contribution to DAS28-CRP | |||||
| Age (years) | −0.03 | (−0.08 to 0.02) | 0.026 | −1.01 | 0.313 |
| Duration of disease (years) | −0.06 | (−0.13 to 0.006) | 0.035 | −1.81 | 0.072 |
| HAQ-DI | 0.58 | (0.48 to 0.68) | 0.050 | 11.54 | < 0.001 |
| Finger/wrist joint symptoms | 11.47 | (10.01 to 12.94) | 0.747 | 15.35 | < 0.001 |
| Contribution to HAQ-DI | |||||
| Age (years) | 0.04 | (−0.005 to 0.08) | 0.021 | 1.73 | 0.084 |
| Duration of disease (years) | 0.07 | (0.01 to 0.12) | 0.028 | 2.35 | 0.019 |
| DAS28-CRP | 0.26 | (0.20 to 0.31) | 0.028 | 9.26 | < 0.001 |
| Grip strength (kg) | −0.43 | (−0.52 to −0.34) | 0.046 | −9.36 | < 0.001 |
P < 0.05 was considered statistically significant.
DAS28-CRP 28-joint count Disease Activity Score using C-reactive protein, HAQ-DI Health Assessment Questionnaire-Disability Index, B (regression coefficient) for every 0.1 point of HAQ-DI and DAS28-CRP, SE standard error, T t statistics.