Table 1 Characteristics of participants. Summary values are shown as median (interquartile range)
From: Are online symptoms checkers useful for patients with inflammatory arthritis?
Rheumatoid arthritis | Psoriatic arthritis | Unclassified arthritis | Inflammatory arthralgia | p for difference between groups | |
|---|---|---|---|---|---|
Number | 13 | 4 | 4 | 13 | |
Sex | 10 female | 3 female | 1 female | 9 female | p = 0.27 |
Age (years) | 52 (39–61.5) | 47 (29.75–57.5) | 69 (51.25–78.5) | 42 (35–57.5) | p = 0.13 |
Tender joint count (out of 28) | 8 (4.5–12) | 5.5 (3.25–8.5) | 3.5 (2.25–5.5) | 3 (0–12) | p = 0.12 |
Swollen joint count (out of 28) | 5 (1.5–5.5) | 3 (1.25–6.25) | 3 (1.5–5.25) | 0 | p < 0.001 |
Patient global score (out of 100) | 49 (29–68.5) | 48.5 (29.75–82.25) | 19.5 (15.25–43.25) | 46 (13.5–60.5) | p = 0.38 |
ESR (mm/h) | 18 (11–48.5) | 25.5 (12–33.75) | 22.5 (14.5–72.5) | 15 (8–20.5) | p = 0.28 |
CRP (mg/l) | 9 (4.5–13.5) | 6.5 (1.5–28) | 4.5 (1.5–9) | 2 (1–7) | p = 0.22 |
DAS28 | 4.61 (4.17–5.73) | 4.64 (4.13–5.26) | 4.1 (3.8–4.7) | 3.61 (2.18–4.70) | p = 0.016 |
Rheumatoid factor positivity | Negative 6 | Negative 4 | Negative 4 | Negative 11 | p = 0.13 |
Low 3 | Low 0 | ||||
High 4 | High 2 | ||||
Anti-CCP antibody positivity * | Negative 8 | Negative 3 | Negative 4 | Negative 8 | p = 0.092 |
High 4 | Low 1 | High 5 |