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Table 4 Comparison of the two groups in terms of change in heart rate (BPM) over time

From: Evaluation of the role of transcutaneous electrical nerve stimulation for postoperative pain relief in laparoscopic cholecystectomy: a prospective comparative study

Heart rate (BPM)

Group

P value for comparison of the two groups at each of the time points (t test)

A

P

Mean (SD)

Mean (SD)

T1 (0 min)

80.69 (7.58)

78.28 (6.93)

0.190

T2 (45 min)

94.41 (8.03)

99.91 (8.91)

0.012

T3 (2 h)

87.15 (6.45)

94.78(13.24)

0.017

T4 (4 h)

80.75 (7.52)

88.12 (7.61)

<0.001

T5 (6 h)

85.12 (7.92)

83.47 (7.39)

0.390

T6 (8 h)

82.72 (7.82)

80.28 (6.93)

0.192

P value for change in heart rate (BPM) over time within each group (repeated measures ANOVA)

0.478

<0.001

 

Overall P value for comparison of the change in heart rate (BPM) over time between the two groups (generalized estimating equations)

<0.001