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Table 2 Postoperative time for the first analgesic request (mins), VAS at 24 hours postoperatively, and total analgesic consumption in the 1st 24 hours (mgs)

From: Postoperative analgesic efficacy of ear acupuncture in patients undergoing abdominal hysterectomy: a randomized controlled trial

  EEA group (n = 28) Control group (n = 28) d 95% C.I. p
First analgesic request (Mean ± SD) 268.893 ± 31.6044 52.036 ± 9.5316 9.2905 7.4919,11.089 0.000*
24 hours morphine consumption (mean ± SD) 6.214± 2.1319 15.714 ± 3.3428 −3.3886 −4.2061,-2.5712 0.000*
VAS at 24 hours (Mean ± SD) 2.536 ± 1.1380 5.036 ± 1.3467 -2.0053 -2.6474, −1.3631 0.000*
  1. *statistically significant at p ≤ 0.05
  2. p p-value for comparing between the two groups
  3. d standardized mean-difference effect size
  4. C.I confidence interval