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

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

Variables

Groups

Average rating

Statistical test

Average of GRV after intervention in first day

Case

21.52

*p < 0.001

Z = − 3/994

Control

39.48

Average of GRV after intervention in second day

Case

24.53

*p = 0.008

Z = − 2.651

Control

36.47

Average of GRV after intervention in third day

Case

20.25

*p < 0.001

Z = − 4.563

Control

40.75

  1. *is significant