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Table 2 Comparison of neural block operation time, onset time, block effect operation time and effective analgesia time between the two groups

From: Single injection technique with ultrasound-guided superficial cervical fascia block combined with brachial plexus block in clavicular surgery: a prospective randomized comparative trial

Variables

Group S

(n = 20)

Group F

(n = 20)

p value

Block operation time(min)

6.34 ± 0.98

5.47 ± 0.96

0.007

Onset time(min)

3.60 ± 1.47

2.60 ± 1.39

0.033

Block effect(1/2/3/4)

60%/30%/10%/0

95%/5%/0/0

0.023

Effective analgesia time (h)

6.30 ± 3.63

10.45 ± 3.14

< 0.001