Impact of question order on prioritisation of outcomes in the development of a core outcome set: a randomised controlled trial

Table 4 Item type-position interaction effects

	Average^a percentage of PROs and clinical items rated essential, median (IQR)		Difference in medians (95% CI)^b	P value^c
	PRO first	PRO last	Difference in medians (95% CI)^b	P value^c
Patients	80.9 (59.7 to 93.4)	92.1 (61.4 to 98.7)	11.2 (−2.5 to 19.7)	0.025
Health professionals	68.2 (58.3 to 81.6)	70.0 (42.3 to 82.0)	1.8 (−14.8 to 13.3)	0.357

^aAverage calculated for each participant as ([% essential PROs] + [% essential clinical])/2
^bBias-corrected bootstrap 95% CIs
^cP values derived from Mann–Whitney tests

ISSN: 1745-6215