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Ain-Shams Journal of Anesthesiology

Table 5 Pairwise comparison between the three groups regarding the number of patients who received pethidine

From: The effect of addition of magnesium sulfate or dexamethasone to bupivacaine on the post-operative analgesic duration of ultrasound-guided quadratus lumborum block in open abdominal surgeries: a comparative study

 

Group

 

Number of patients who received pethidine

BS

BM

BD

Total

Count (%)

22 (43.14)

15 (29.41)

14 (27.45)

51 (100)

Adjusted residual (P-value)

3.12 (0.0018)

 − 1.25 (0.2113)

 − 1.87 (0.0615)

 
  1. Data are presented as number of patients (percentage). BS Bupivacaine-Saline group, BM Bupivacaine-Magnesium group, BD Bupivacaine-Dexamethasone group. The null hypothesis is that there is no difference between the 3 groups; this means that the expected number of patients who needed pethidine will be equal in the 3 groups. The P-value indicates if there is a significant difference between the actual number of patients who needed pethidine and the expected number in each group. The level of significance here is corrected. Bonferroni correction was made with statistical significance accepted at a P-value < 0.0167
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