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Table 4 Statistical results of the three procedures in secondary outcomes

From: Randomized controlled trial to evaluate the utility of suction and inner-stylet of EBUS-TBNA for mediastinal and hilar lymphadenopathy

Secondary outcome Group Ab Group Bc Group Cd P valuea
  A vs. B A vs. C
Procedural time (second) 101.1 ± 31.3 87.1 ± 34.7 89.3 ± 33.6 <  0.001 <  0.001
Tissue-core acquisition (%) 47.1 49.4 32.5 0.576 < 0.001
The amount of bleeding (score) 1.97 ± 0.17 1.96 ± 0.20 1.97 ± 0.17 0.366 >  0.999
  1. aProcedural time, tissue-core acquisition rate, and the amount of bleeding were analyzed by the paired t-test, McNemar test, and the Wilcoxon’s test, respectively
  2. bA, suction–stylet procedure
  3. cB, suction–no stylet procedure
  4. dC, stylet–no suction procedure