From: Antibodies to citrullinated proteins and differences in clinical progression of rheumatoid arthritis
 | Anti-CCP-negative (n = 228) | Anti-CCP-positive (n = 226) |
---|---|---|
Temporomandibular joints | 0.01 ± 0.41 | 0.08 ± 0.36 |
Sternoclavicular joints | 0.23 ± 0.76 | 0.12 ± 0.47 |
Acromioclavicular joints | 0.31 ± 0.63 | 0.55 ± 0.79 |
Shoulder joints | 0.85 ± 1.5 | 0.86 ± 1.4 |
Elbow joints | 0.42 ± 0.99 | 0.35 ± 0.81 |
Wrist joints | 0.94 ± 0.94 | 0.80 ± 0.93 |
Metacarpophalangeal joints | 4.3 ± 4.3 | 3.5 ± 3.4 |
Proximal interphalangeal joints of the hands | 3.2 ± 3.6 | 3.3 ± 3.4 |
Distal interphalangeal joints of the hands | 1.3 ± 2.4 | 1.2 ± 2.2 |
Hip joints | 0.18 ± 0.73 | 0.11 ± 0.54 |
Knee joints | 0.54 ± 0.88 | 0.59 ± 0.90 |
Ankle joints | 0.41 ± 0.92 | 0.53 ± 1.1 |
Subtalar joints | 0.31 ± 0.72 | 0.52 ± 0.76 |
Midtarsal joints | 0.21 ± 0.40 | 0.18 ± 0.58 |
Metatarsophalangeal joints | 4.2 ± 3.4 | 4.1 ± 3.7 |
Interphalangeal joints of the feet | 0.91 ± 1.8 | 1.4 ± 3.2 |
Total Ritchie articular index score | 10.4 ± 8.2 | 10.2 ± 8.0 |