Studying the effect of abdominal massage on the gastric residual volume in patients hospitalized in intensive care units

Table 4 Comparison of the average of GRV after intervention in the case and control groups in different days

Variables	Groups	Average rating	Statistical test
Average of GRV after intervention in first day	Case	21.52	*p < 0.001 Z = − 3/994
Average of GRV after intervention in first day	Control	39.48	*p < 0.001 Z = − 3/994
Average of GRV after intervention in second day	Case	24.53	*p = 0.008 Z = − 2.651
Average of GRV after intervention in second day	Control	36.47	*p = 0.008 Z = − 2.651
Average of GRV after intervention in third day	Case	20.25	*p < 0.001 Z = − 4.563
Average of GRV after intervention in third day	Control	40.75	*p < 0.001 Z = − 4.563

ISSN: 2052-0492