Table 4.

Comparison of bowel sounds between the hyperbilirubinemia group and the control group.

	Testing age (days), median [IQR]	Total bilirubin (umol/L), median [IQR]	Rate, mean ± SD	Duration, mean ± SD	Amplitude, median [IQR]	Interval, mean ± SD	Frequency, mean ± SD
Control group (n = 10)	5.5 [3.5, 6.0]	188.7 [84.6, 273.1]	26.68 (4.56)	9.24 (2.70)	0.44 [0.38, 0.51]	2.81 (0.730)	971.66 (70.70)
Hyperbilirubinemia group (n = 68)	6.0 [5.0, 8.0]	298.4 [258.2, 333.5]	27.60 (5.49)	10.12 (2.85)	0.51 [0.41, 0.66]	2.69 (0.714)	956.99 (59.84)
P	0.181	0.001	0.639	0.395	0.472	0.649	0.513