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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