HIGHLIGHTS
SUMMARY
Gallstones are present in up to 20% of the population, with their percentage slightly higher in females. The authors planned to assess the effect of administering a single dose of dexamethasone before surgery on postoperative pain. The sample size was calculated using the WHO sample size calculator keeping a level of significance of 5%, power of the test of 90%, population standard deviation (SD) of 1.94, test value of the population mean pain score of 4.03, and an anticipated population mean pain score of 3.03. Patients who were immunocompromised or had . . .
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