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Table 1 Demographic, clinical and foot impairment/disability scores for 12 RA patients and normal reference values for 12 age and sex matched able-bodied adults

From: The impact of rheumatoid arthritis on foot function in the early stages of disease: a clinical case series

Patient/Age/Foot DMARD BMI (kg/m2) DAS28 (0–10) Erosive Disease LFISIF (0–21) LFISAP (0–30) SJC (0–14) TJC (0–14) PJC (0–14) SIFF (0–12) SIRF (0–7) RSFP (deg)
1/43/L MTX 30.5 7.3 - 14 19 14 14 4 1 0 -5 valgus
2/48/R - 26.3 6.2 - 11 12 11 5 3 0 0 6 varus
3/36/R SSZ 19.5 5.5 - 17 23 8 12 5 3 0 -4 valgus
4/55/L MTX 27.4 5.0 + 6 8 0 2 0 2 1 -9 valgus
5/50/R - 27.0 4.1 - 11 14 9 9 2 0 0 -4 valgus
6/27/R MTX 25.1 4.1 Missing 9 10 1 9 2 0 1 -8 valgus
7/44/L MTX, SSZ, HCQ 35.1 3.7 - 11 6 0 1 0 5 0 -2 valgus
8/32/R TNFα, MTX 21.9 3.4 - 12 22 0 7 4 9 2 -7 valgus
9/58/R MTX 25.0 2.7 - 10 3 1 10 1 0 0 -6 valgus
10/60/L MTX 38.9 2.5 + 10 15 0 1 0 6 2 7 varus
11/43/R SSZ 28.5 2.3 + 7 5 0 3 1 10 1 -8 valgus
12/63/L MTX, HCQ 32.0 2.3 - 10 7 0 0 0 2 2 -9 valgus
Median 46 - 27.2 3.9   11 11 1 6 2 2 1 -6 valgus
Range 27–63 - 19.5–35.1 2.3–7.3   6–17 3–23 0–14 0–14 0–5 0–10 0–2 -9 valgus-7 varus
Reference values (n = 12)
Median 47 - 23.7 - - 1 0 0 0 0 1 0 -3 valgus
Range 27–64 - 19.1–31.8 - - 0–4 0–2 0–2 0–1 0 0–2 0–2 -8 valgus-1 varus
  1. DMARD = disease-modifying antirheumatic drug; MTX = methotrexate; SSZ = sulphasalazine; HCQ = hydroxychloroquine; TNFα = tumour necrosing factor α blockade; BMI = body mass index; DAS28 = disease activity score using 28 joint counts; LFISIF = Leeds Foot Impact Scale-Impairment/Footwear subscale score 9 range 0–21); LFISAP = Leeds Foot Impact Scale-Activity Limitation/Participation Restriction subscale score (range 0–30); SJC = swollen joint count (range 0–14); TJC = tender joint count (range 0–14); PJC = painful joint count (range 0–14); SIFF = structural index for forefoot; SIRF = structural index for rearfoot. RSFP = relaxed standing foot posture.