Retrospective Analysis of Ultrasound-Guided Infraclavicular Block: Effect of Experience of Anesthesiologists on Volume of Local Anesthetic Administered
Table 1
Patient characteristics.
Group I
Group II
Group III
Group IV
p
Mean ± SD, n (%)
Median
Mean ± SD, n (%)
Median
Mean ± SD, n (%)
Median
Mean ± SD, n (%)
Median
Age
38.2 ± 14.7
35
38.6 ± 14.9
37
35.9 ± 14.7
33
35.7 ± 14.1
33
0.000
Sex
Female
227
36.1%
239
35.6%
215
29.9%
243
26.0%
0.000
Male
401
63.9%
433
64.4%
505
70.1%
690
74.0%
BMI
26.3 ± 4.8
26
26.1 ± 4.9
26
26.2 ± 5.1
25
25.9 ± 4.6
25
0.417
ASA
I
341
54.3%
331
49.3%
420
58.3%
633
67.8%
0.041
II
263
41.9%
324
48.2%
285
39.6%
285
30.5%
III
22
3.5%
17
2.5%
14
1.9%
14
1.5%
IV
2
0.3%
0
0.0%
1
0.1%
1
0.1%
Data were analyzed using the Kruskal–Wallis (Mann–Whitney U test) or chi-square test.
