Table 4 Mean percentage of stained area in the synovial sublining
|  | All patients | RA | OA | Mann–Whitney U | |
|---|---|---|---|---|---|
(mean ± SD) | (mean ± SD) | (mean ± SD) | (p value) | ||
CD68 | Upper | 10.52 (±7.75) | 15.89 (±6.88) | 4.55 (±2.42) | 0.001 |
|  | Middle | 7.12 (±7.82) | 12.04 (±8.05) | 1.66 (±0.89) | 0.001 |
|  | Lower | 5.92 (±6.92) | 9.85 (±7.66) | 1.56 (±1.06) | 0.001 |
|  | Total area | 7.85 (±7.33) | 12.59 (±7.30) | 2.59 (±1.34) | <0.001 |
CD3 | Upper | 4.79 (±7.74) | 8.06 (±8.88) | 0.79 (±1.11) | 0.006 |
|  | Middle | 4.38 (±6.27) | 6.68 (±7.32) | 1.58 (±3.22) | 0.056 |
|  | Lower | 3.56 (±5.70) | 5.86 (±6.91) | 0.75 (±1.15) | 0.095 |
|  | Total area | 4.24 (±6.05) | 6.86 (±7.09) | 1.04 (±1.78) | 0.012 |
CD55 | Upper | 10.80 (±11.93) | 15.81 (±13.61) | 4.67 (±5.45) | 0.012 |
|  | Middle | 4.29 (±5.40) | 6.46 (±6.11) | 1.64 (±2.86) | 0.002 |
|  | Lower | 5.00 (±6.20) | 7.73 (±7.21) | 1.66 (±1.88) | 0.007 |
|  | Total area | 6.70 (±6.59) | 10.00 (±7.00) | 2.66 (2.92) | 0.002 |
CD38 | Upper | 5.75 (±4.95) | 7.43 (±4.34) | 3.68 (±5.10) | 0.046 |
|  | Middle | 2.86 (±3.94) | 3.97 (±4.55) | 1.50 (±2.68) | 0.038 |
|  | Lower | 2.74 (±3.85) | 3.60 (±4.52) | 1.69 (±2.73) | 0.175 |
|  | Total area | 3.78 (±4.01) | 5.00 (±4.16) | 2.29 (±3.47) | 0.046 |
vWF | Upper | 4.19 (±2.67) | 4.87 (±2.77) | 3.37 (±2.43) | 0.295 |
|  | Middle | 3.84 (±2.92) | 4.52 (±2.29) | 3.02 (±3.51) | 0.175 |
|  | Lower | 2.88 (±2.28) | 3.46 (±2.39) | 2.18 (±2.06) | 0.175 |
|  | Total area | 3.64 (±2.17) | 4.28 (±1.94) | 2.86 (±2.30) | 0.152 |
MCT | Upper | 1.53 (±1.53) | 1.53 (±1.68) | 1.54 (±1.42) | 0.897 |
|  | Middle | 0.58 (±0.79) | 0.53 (±0.73) | 0.64 (±0.91) | 0.696 |
|  | Lower | 0.67 (±0.70) | 0.66 (±0.59) | 0.69 (±0.86) | 0.897 |
|  | Total area | 0.93 (±0.90) | 0.90 (±0.85) | 0.96 (±1.01) | 0.829 |