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

Table 4 Statistical results of the three procedures in secondary outcomes

Secondary outcome	Group A^b	Group B^c	Group C^d	P value^a
Secondary outcome	Group A^b	Group B^c		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

^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
^bA, suction–stylet procedure
^cB, suction–no stylet procedure
^dC, stylet–no suction procedure

ISSN: 1471-2466