Table 1 Mean differences (SD) of FFbH/HAQ, BASDAI and SF36 scores obtained by paper–pencil/computerised questionnaires and corresponding correlation coefficients (LCL lower 95% confidence limit, UCL upper 95% confidence limit)

Score	Mean difference (SD) Tablet PC—Paper–pencil	p-Value of the Wilcoxon signed-rank tests	Pearson correlation coefficients (LCL;UCL)
FFbH (n = 153)	0.04 (3.28)	0.89	0.99 (0.98; 0.99)
HAQ (n = 153)	−0.00 (0.09)	0.72	0.99 (0.98; 0.99)
BASDAI (n = 32 SpA)	−0.03 (0.52)	0.67	0.98 (0.96; 0.99)
SF-36 Physical component summary score (n = 153)	0.30 (4.19)	0.22	0.93 (0.90; 0.95)
SF-36 Mental component summary score (n = 153)	0.09 (4.17)	0.18	0.94 (0.91; 0.94)

BASDAI, Bath Ankylosing Spondylitis Disease Activity Index; FFbH, Hannover Functional Questionnaire; HAQ, Health Assessment Questionnaire (HAQ) index; SF-36, Medical Outcome Studies Short Form 36.