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Table 1 Demographic characteristics among the studied patients

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

Demographic characteristics EEA group (n = 28) control group (n = 28) d 95% C.I. p
Age Mean ± SD 49.857 ± 3.9320 49.643 ± 3.8318 0.0551 − 0.4688,0.579 0.837 (NS)
BMI Mean ± SD 27.02 ± 3.401 28.38± 2.794 − 0.437 − 0.967,0.0931 0.108(NS)
ASA I
ASA II
N (%) 16 (57.1%)
12 (42.9%)
16 (57.1%)
12 (42.9%)
0 −0.5292,0.5292 1.0(NS)
Chronic illness Hypertension N (%) 5 (17.9%) 4 (14.3%) −0.0981 −0.6222,0.4261 0.716(NS)
Diabetes mellitus N (%) 7 (25.0%) 8 (28.6%) 0.0813 −0.4427,0.6054 0.763(NS)
Duration of surgery Mean ± SD 79.96 ± 8.113 80.61 ± 6.190 −0.0901 −0.6142,0.434 0.74(NS)
Level of the block at end of surgery T4
T6
N (%) 15 (53.6%)
13 (46.4%)
14 (50%)
14 (50%)
−0.0721 −0.5961,0.4519 0.789 (NS)
  1. NS Non-significant difference (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