Table 4

Health Assessment Questionnaire (HAQ) at baseline, 10 years and difference over 10 years, by time to, and time receiving, treatment

n (%)Baseline HAQ Median (IQR)10 Year HAQ Median (IQR)Change over 10 years Mean (95% CI)
Not treated over follow-up297 (46)0.50 (0.13–0.88)0.50 (0.13–1.25)0.13 (0.05 to 0.21)
Treated over follow-up345 (54)1.00 (0.50–1.50)1.38 (0.50–2.00)0.24 (0.14 to 0.33)
Time to first treatment
 <6 Months122 (35)1.25 (0.63–1.75)1.25 (0.25–2.13)0.00 (−0.17 to 0.17)
 6–12 Months76 (22)1.00 (0.44–1.63)1.50 (0.50–2.00)0.28 (0.08 to 0.48)
 >12 Months147 (43)0.75 (0.38–1.38)1.38 (0.63–2.00)0.41 (0.28 to 0.54)
Time receiving first treatment
 ≤6 Months91 (26)1.00 (0.38–1.50)1.63 (0.50–2.13)0.35 (0.15 to 0.55)
 >6 to ≤36 Months123 (36)1.00 (0.38–1.63)1.38 (0.63–2.00)0.24 (0.10 to 0.38)
 >36 Months131 (38)0.88 (0.50–1.50)1.25 (0.25–1.88)0.16 (0.002 to 0.32)
Time receiving any treatment over 10 years
 ≤48 Months88 (26)0.88 (0.25–1.50)0.88 (0.06–1.63)0.06 (−0.12 to 0.25)
 >48 to ≤96 Months57 (17)0.88 (0.38–1.63)1.50 (0.63–2.00)0.38 (0.13 to 0.63)
 >96 Months200 (58)1.00 (0.50–1.56)1.50 (0.63–2.13)0.27 (0.15 to 0.39)