Table 4 Age- and sex-adjusted comparisons between pathology groups for key outcomes, excluding those reporting rheumatoid arthritis (n = 690)

Number of painful sites^a

4.0 (3.7–4.2)

4.2 (3.9–4.6)

3.6 (3.3–4.0)

3.0 (2.6–3.3)

χ² = 29.0, p < 0.001

Steroid injection at time of scan

0.49 (0.42–0.55)

0.40 (0.32–0.47)

0.12 (0.06–0.18)

0.34 (0.24–0.44)

χ² = 40.1, p < 0.001

Steroid injection since scan

0.76 (0.70–0.81)

0.67 (0.69–0.75)

0.49 (0.39–0.59)

0.63 (0.52–0.73)

χ² = 20.3, p < 0.001

Physiotherapy

0.59 (0.53–0.66)

0.67 (0.60–0.75)

0.67 (0.58–0.76)

0.53 (0.43–0.63)

χ² = 5.0, p = 0.171

Surgery

0.19 (0.15–0.24)

0.25 (0.18–0.33)

0.35 (0.25–0.46)

0.14 (0.07–0.21)

χ² = 10.5, p = 0.015

Pain at follow-up

0.59 (0.53–0.65)

0.68 (0.61–0.75)

0.81 (0.74–0.88)

0.60 (0.50–0.70)

χ² = 17.3, p < 0.001

SPADI pain^b

29 (22–36)

32 (23–41)

51 (40–62)

28 (17–40)

F(3, 672) = 4.0, p = 0.008

SPADI difficulty^b

15 (10–20)

19 (12–25)

31 (23–39)

11 (3–20)

F(3, 668) = 4.1, p = 0.006

SPADI total^b

23 (18–29)

25 (18–32)

42 (34–51)

20 (11–29)

F(3, 666) = 5.3, p = 0.001