Effect of music on colonoscopy performance: A propensity score-matched analysis

Table 3 Outcomes of colonoscopy performance according to expert and trainee subgroups

	Polyp detection rate	Adenoma detection rate	Insertion time (min)	Withdrawal time (min)
Expert
Total (n = 173)	115 (66.5%)	83 (48.0%)	3.75 (2.57-5.68)	10.68 (8.22-15.22)
Music (n = 88)	58 (65.9%)	45 (51.1%)	3.57 (2.59-5.80)	10.30 (7.95-15.27)
No music (n = 85)	57 (67.1%)	38 (44.7%)	3.83 (2.42-5.65)	10.90 (8.48-14.10)
P value	> 0.999	0.488	0.852	0.560
Trainee
Total (n = 165)	94 (57.0%)	61 (37.0%)	6.30 (4.58-8.82)	12.07 (8.92-19.0)
Music (n = 81)	38 (46.9%)	21 (25.9%)	6.30 (4.50-8.70)	10.82 (8.78-17.43)
No music (n = 84)	56 (66.7%)	40 (47.6%)	6.27 (4.78-9.11)	13.68 (9.31-20.33)
P value	0.016	0.006	0.831	0.123

Data are expressed as n (%), median (interquartile range), P-values were calculated using Kruskal-Wallis test and χ² test.