Table 2.

Association between characteristics of pain and stiffness and functional status

		mHAQ Score
		Regression coefficient (95% confidence interval)
	N (%)	Unadjusted	Adjusted*
General pain and stiffness
Pain rating
Low (0–7)	217 (33.9)	0	0
High (8–10)	423 (66.1)	0.24 (0.15 to 0.34)	0.20 (0.10 to 0.28)
Number of painful sites
0–9	180 (27.6)	0	0
10–15	165 (25.3)	0.38 (−0.08 to 0.16)	0.05 (−0.07 to 0.16)
16–22	144 (22.1)	0.17 (0.04 to 0.29)	0.13 (0.01 to 0.25)
23–44	163 (25.0)	0.27 (0.15 to 0.39)	0.18 (0.06 to 0.29)
Stiffness rating
Low (0–7)	255 (39.7)	0	0
High (8–10)	387 (60.3)	0.23 (0.14 to 0.32)	0.18 (0.09 to 0.26)
Number of stiff sites
0–5	181 (27.8)	0	0
6–11	164 (25.1)	0.18 (0.06 to 0.30)	0.14 (0.03 to 0.26)
12–19	157 (24.1)	0.22 (0.09 to 0.34)	0.17 (0.05 to 0.29)
20–44	150 (23.0)	0.31 (0.19 to 0.43)	0.19 (0.08 to 0.31)
Localised pain and stiffness
Can you raise your arms above your head?
Yes	184 (28.6)	0	0
No	413 (64.2)	0.28 (0.18 to 0.38)	0.19 (0.10 to 0.28)
Do not know	46 (7.2)	0.17 (−0.02 to 0.35)	0.06 (−0.12 to 0.23)
Bilateral shoulder pain
No	83 (12.7)	0	0
Yes	569 (87.3)	0.22 (0.09 to 0.36)	0.18 (0.05 to 0.31)
Bilateral hip pain
No	237 (36.3)	0	0
Yes	415 (63.7)	0.71 (−0.22 to 0.16)	0.80 (−0.01 to 0.17)
Bilateral shoulder stiffness
No	184 (28.2)	0	0
Yes	468 (71.8)	0.19 (0.09 to 0.28)	0.10 (0.01 to 0.20)
Bilateral hip stiffness
No	313 (48.0)	0	0
Yes	339 (52.0)	0.12 (0.03 to 0.20)	0.07 (−0.02 to 0.15)

Bold = significant difference. *Adjusted for age, gender deprivation, BMI, smoking status, anxiety and depression and current prednisolone dose