Table 2

Definitions and statistical measures of consensus, agreement and stability

	Definition	Statistics	Round 2	Round 3
Consensus	The extent to which the group of experts share the same opinion	Median IQR Per cent agreement	≥3.5 ≤1.5 ≥60%	≥3.5 ≤1 ≥70%
Agreement	A measure of inter-rater agreement where the rating of one expert can be predicted by the rating of another	Kendall’s coefficient of concordance	Significant agreement (p<0.05)	Significant agreement (p<0.05)
Stability	The consistency of responses between successive rounds	Wilcoxon rank-sum test	NA	Significance level p<0.05

NA, not applicable.