How to reach agreement: the impact of different analytical approaches to Delphi process results in core outcomes set development

Table 2 Ability of different summary statistics to correctly discriminate between outcomes included and excluded from the final core outcomes set

Summary statistic top-ranked outcomes	Youden’s index
Summary statistic top-ranked outcomes	Gastroschisis core outcomes set (n = 87)	Neonatal core outcomes set (n = 114)
Ranked mean score^b	0.31 (− 0.03, 0.65)	0.81 (0.60, 1.03)
Ranked median score^a	0.21 (− 0.09, 0.51)	0.79 (0.58, 1.00)
Ranked rate of exceedance	0.31 (− 0.03, 0.65)	0.91 (0.75, 1.06)

95% confidence intervals given in brackets
^aParticipants in the gastroschisis core outcomes set development project were presented with median scores during the Delphi process
^bParticipants in the neonatal core outcomes set development project were presented with mean scores during the Delphi process

ISSN: 1745-6215