Comparing bilirubin level at admission and discharge in the intervention and control groups.
*Wilcoxon signed-rank test.** Mann-Whitney U test.In addition, bilirubin levels in both groups were measured during 12, 24, and 48 hours after admission, and the results were obtained by Friedman test. We intended to investigate the difference in bilirubin levels in these three time periods, the neonates studied at this stage were 49 in the intervention and 43 in the control group. Therefore, 14 participants were excluded due to loss to follow-up. The intragroup analysis indicated that TSB in both groups had significant decrease during 12, 24, and 48 hours after hospitalization (P <0.001). Although there was no significant difference between the two groups at 12 and 48 hours after hospitalization (P>0.05), significant difference was noticed at 48 hours after hospitalization (P = 0.009) (