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Table 2 Multiple comparisons between the four groups (Scheffe post hoc test)

From: A retrospective study on the impact of bar flipping on the recurrence of pectus excavatum after the Nuss procedure

(I) Group (J) Group Mean Dif (I − J) p-value
 ≤ 10° 11–20°
21–30°
 − 0.012
0.009
0.850
0.974
   > 30° 0.136  < 0.001
   ≤ 10° 0.012 0.850
11–20° 21–30° 0.02 0.732
   > 30° 0.148  < 0.001
   ≤ 10°  − 0.009 0.974
21–30° 11–20°  − 0.02 0.732
   > 30° 0.127  < 0.001
  1. There is a statistical difference between group > 30° and other groups (p < 0.001)
  2. p < 0.05 are given in bold