Table 3.
Bivariate analysis of demographic features and laboratory results specific for RA using Chi-square tests and unpaired Student’s t-tests, as appropriate (N = 438).
| Variables | P-value |
|---|---|
| Gender; male or female | 0.019 |
| Age (years) | 0.528 |
| Seropositive | <0.0001 |
| BMI (kg/m2) | 0.720 |
| Duration of having RA (years) | 0.011 |
| Marital status | 0.885 |
| Education | 0.812 |
| Monthly income | 0.154 |
| ESR (mm/h) | 0.022 |
| CRP (mg/L) | 0.802 |
| HAQ score 0–3 | 0.605 |
| Pain score 0–100 | 0.369 |
| Morning stiffness | 0.633 |
Seropositive (which indicates either RF: Rheumatoid factor or Anti-CCP: Anti-cyclic citrullinated peptide), BMI: Body mass index (Kilogram per meter square), RA: Rheumatoid arthritis, ESR: Erythrocyte sedimentation rate (Millimeters/hour), CRP: C-reactive protein (Milligram/liter), and HAQ: Health assessment questionnaire; Statistically significant (p < 0.05) variables are noted in bold font.