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Table 1 Comparison among the three groups based on the demographics

From: Analgesia and spread of erector spinae plane block in breast cancer surgeries: a randomized controlled trial

Demographic data

Standard volume group (n = 20)

High volume group (n = 20)

GA only group (n = 20)

Test of sig.

P

Age (years)

 Mean ± SD.

42.95 ± 7.48

41.05 ± 9.20

43.20 ± 7.15

F = 0.433

0.651

 Median (Min. – Max.)

44.50(24.0 – 50.0)

44.0 (26.0 – 50.0)

45.0 (28.0 – 50.0)

Female sex

20

20

20

  

Weight (kg)

 Mean ± SD.

80.50 ± 10.69

79.25 ± 12.02

83.60 ± 9.45

F = 0.865

0.427

 Median (Min. – Max.)

81.0(65.0 – 105.0)

77.50(60.0 – 100.0)

82.50(68.0 – 105.0)

Height (cm)

Mean ± SD

166 ± 3.5

165 ± 3.7

167 ± 3.4

F = 1.600

0.211

BMI (kg / m2)

29.2 ± 2.65

29.1 ± 3.11

29.96 ± 2.17

F = 0.620

0.541

Surgery type

   

χ2 = 0.997

MCp = 1.000

 MRM (Modified radical mastectomy)

9

9

8

 Mastectomy without ALND (axillary lymph node dissection, eg: negative sentinel LN biopsy)

4

3

4

 Breast conservative surgery with ALND

5

6

5

 Breast conservative surgery without ALND

2

2

3

  1. SD Standard deviation, F F for One way ANOVA test
  2. p: p value for comparing among the three groups