Skip to main content
. 2023 Sep 28;24:764. doi: 10.1186/s12891-023-06905-w

Table 4.

Two-by-Two comparison groups regarding shoulder pain intensity at 4, 8, and 12 h after laparoscopic cholecystectomy

Times Mean difference P-value*
4 h after surgery
Massaging-control -1.17 < 0.001
control –TENS -1.21 < 0.001
Massaging _TENS -0.04 0.97
8 h after surgery
Massaging-control -1.19 < 0.001
control –TENS -1.60 < 0.001
Massaging _TENS -0.41 0.08
12 h after surgery
Massaging-control -1.19 < 0.001
control –TENS -1.41 < 0.001
Massaging _TENS -0.21 0.56

*Post hoc analysis, using Tukey’s method