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Table 1 Demographic and clinical characteristics of patients, frequency and percentage (n (%)) from Chi square test, mean ± standard deviation from independent t-test, N = 74

From: The analgesic efficacy of bilateral superficial cervical plexus block for thyroid surgery under general anesthesia: a prospective cohort study

Variables

Block group (n = 37)

Non-block group (n = 37)

p-value

Age (years)

35.1 ± 9.3

34.6 ± 10.0

0.85

BMI

20.1 ± 2.4

20.4 ± 3.3

0.74

Sex

0.30

 Male

10 (27)

6 (16.3)

 Female

27 (73)

31 (83.7)

ASA class

0.99

 I

30 (81)

30 (81)

 II

7 (19)

7 (19)

Diagnosis

0.63

 Simple nodular goiter

22 (59.4)

12 (32.4)

 Simple colloid goiter

6 (16.2)

6 (16.2)

 Multi-nodular goiter

8 (21.6)

16 (43.2)

 Thyroid cancer

1 (2.7)

3 (8.1)

Size of thyroid mass (cm2)

31.8 ± 24.2

37.5 ± 26.2

0.43

Type of thyroidectomy

0.12

 Lobectomy

0 (0)

0 (0)

 Subtotal

22 (59.4)

12 (32.4)

 Near total

12 (32.4)

21 (56.7)

 Total

2 (5.4)

1 (2.7)

 Extended neck dissection

1 (2.7)

3 (8.1)

Incision length (cm)

9.2 ± 2.8

9.1 ± 2.1

0.96

Duration of surgery (min)

120.2 ± 36.6

123.4 ± 41.4

0.77

Duration of anesthesia

140.4 ± 38.0

145.6 ± 43.8

0.66

Preemptive analgesia at induction

0.57

 Acetaminophen and diclofenac

4 (16)

3 (12)

 Acetaminophen, diclofenac and opioids

21 (84)

22 (88)