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Table 3 Comparison of the two groups in terms of change in diastolic BP (mmHg) over time

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

Diastolic BP (mmHg)

Group

P value for comparison of the two groups at each of the time points (Wilcoxon-Mann-Whitney test)

P

A

Mean (SD)

Mean (SD)

T1 (o min)

69.69 (5.01)

70.75 (5.54)

0.487

T2 (45 min)

74.66 (6.49)

67.56 (4.73)

<0.001

T3 (2 h)

74.03 (6.66)

69.12 (4.79)

0.004

T4 (4 h)

77.38 (6.33)

70.00 (4.68)

<0.001

T5 (6 h)

71.38 (5.48)

70.94 (5.40)

0.865

T6 (8 h)

71.95 (8.95)

72.52 (5.30)

0.958

P value for change in diastolic BP (mmHg) over time within each group (Friedman test)

<0.001

<0.001

 

Overall P value for comparison of the change in diastolic BP (mmHg) over time between the two groups (generalized estimating equations)

<0.001

<0.001

Â