Table 1.
Clinical data and laboratory tests
| Item | RA group | Other rheumatic diseases group | Control group |
|---|---|---|---|
| Number | 1009 | 170 | 245 |
| Age, years (mean ± SD, range) | 64.52 ± 10.12 | 68.26 ± 8.15 | 61.45 ± 12.50 |
| Gender (F/M) | 191/818 | 32/138 | 48/197 |
| RF (IU/mL) | 129.00 (41.85‐394.00) a , b | 59.52 (21.90‐136.50) b | 8.00 (4.40‐14.30) |
| CRP (mg/L) | 13.55 (10.37‐50.93) a , b | 8.16 (4.15‐29.87) b | 2.30 (1.50‐3.01) |
| ESR (mm/H) | 50.50 (28.25‐79.00) b | 33.5 (17‐61.75) b | 24.00 (17.00‐31.00) |
| NEUT (×109) | 4.65 (3.35‐6.36) a , b | 4.28 (3.11‐5.05) b | 3.50 (2.71‐4.25) |
| Ly (×109) | 1.41 (1.07‐1.91) a , b | 1.64 (1.23‐2.10) b | 2.17 (1.76‐2.70) |
| PLT | 244 (192‐312) | 224 (188‐266) | 255 (215‐296) |
| NLR | 3.23 (2.14‐4.80) a , b | 2.36 (1.78‐3.63) b | 1.54 (1.24‐2.05) |
| PLR | 168.68 (124.45‐239.57) a , b | 130.73 (95.83‐174.15) b | 113.77 (92.97‐144.95) |
Abbreviations: CRP, C‐reactive protein; ESR, erythrocyte sedimentation rate; Ly, lymphocyte; NEUT, neutrophil; NLR, neutrophil‐to‐lymphocyte ratio; PLR, platelet‐to‐lymphocyte ratio; PLT, platelet; RF, rheumatoid factor.
a
P < .05 vs rheumatic diseases group.
b
P < .05 vs control group.