Fig. 3From: A retrospective study on the impact of bar flipping on the recurrence of pectus excavatum after the Nuss procedureThe DeLong test shows that grouping by 10° and grouping by 20° are not significant (p = 0.061). Grouping by 20° and 30° (p = 0.006) and grouping by 10° and 30° (p < 0.001) are significantBack to article page