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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.