Table 4

Minimal important difference estimates for the skin score and Health Assessment Questionnaire—Disability Index at 6 months stratified by severity at the baseline

Mean (SD) score at baseline
LowMediumHigh
MonthMID in the slightly improved groupNo change groupMID in the slightly improved groupNo change groupMID in the slightly improved groupNo change group
6−2.6 (3.3) (n = 9)−1.9 (4.3) (n = 10)−1.8 (3.8) (n = 15)1.2 (2.5) (n = 6)−6.1 (5.3) (n = 8)−0.75 (9.9) (n = 4)
Mean (SD) HAQ-DI at baseline
LowMediumHigh
HAQ-DI, Health Assessment Questionnaire—Disability Index; MID, minimally important difference.
Negative score indicates improvement in HAQ-DI and skin score.
Low score, between 0 and 25th centile; medium score, between 26th and 74th centile; and high score, ⩾75th centile.
MonthMID in the slightly improved groupNo change groupMID in the slightly improved groupNo change groupMID in the slightly improved groupNo change group
60.01 (0.35) (n = 10)0.37 (0.52) (n = 5)−0.11 (0.38) (n = 14)0.02 (0.18) (n = 6)−0.21 (0.42) (n = 7)−0.03 (0.43) (n = 9)