Table 4.

Comparison of other secondary outcomes

	Group A (n = 39)	Group B (n = 34)	Group C (n = 38)	P-Value
Bolus frequency	15.3 ± 13.0	10.8 ± 8.3	9.7 ± 9.1	0.002*
Total hydromorphone consumption(ml)	29.8 ± 20.1	25.4 ± 17.8	31.6 ± 23.5	0.145
Catheter removal (days)	1.7 ± 1.2	1.6 ± 1.1	1.5 ± 1.0	0.682
Time to first flatus (days)	2.6 ± 1.7	2.8 ± 1.8	2.7 ± 1.6	0.213
Time to first feeding (days)	3.2 ± 2.4	2.9 ± 2.1	2.7 ± 1.8	0.325
Time to first ambulation (days)	1.4 ± 0.8	1.5 ± 1.1	1.3 ± 0.7	0.089

Continuous variables were analyzed using the Kruskal-Wallis H test, and pairwise comparisons for significantly different indicators (Bolus frequency) were performed using Dunn-Bonferroni correction. Values are expressed as means ± SDs