Analysis of the Learning Curve of Surgeons without Previous Experience in Laparoscopy to Perform Robot-Assisted Radical Prostatectomy
Table 1
The table shows the descriptive analysis and comparison of the means of the 4 groups of patients submitted to robotic radical prostatectomy. Group 1 contained patients operated in 2012, group 2 in 2013, group 3 in 2014, and group 4 in 2015.
Variable
X
Median
SD
CV
Minimum
Maximum
X of group 1
X of group 2
X of group 3
X of group 4
value
Age (years)
61.09
62.00
5.71
9.34
41.00
72.00
61.28
59.62
61.89
62.30
0.2290
Body mass index
24.8
25
2.68
10.8
18.09
33.00
21.23
24.11
25.75
19.30
0.6570
Prostate weight (g)
29.71
31.00
11.70
39.40
7.00
52.00
27.41
29.31
31.03
30.57
0.6960
PSA density (%)
24.80
25.00
2.69
10.84
18.00
33.00
23.55
24.11
25.75
25.71
0.0017
Probability of extraprostatic extension (PARTIN) (%)
20.29
22.00
4.39
21.63
9.00
25.00
21.23
20.31
20.34
19.30
0.5440
Follow-up (months)
45.30
46.00
10.92
24.10
27.00
64.00
60.68
51.15
39.06
30.17
0.0001
Hospitalization time (days)
2.44
2.00
2.25
92.32
1.00
21.00
3.09
2.23
2.09
2.70
0.3450
Bleeding (milliliters)
207.48
150.00
174.34
84.03
10.00
1200.00
245.00
153.33
277.71
156.52
0.0049
Console time (minutes)
189.29
180.00
63.14
33.36
100.00
470.00
265.23
177.56
178.86
152.39
0.0001
Surgery time (minutes)
238.50
220.00
71.59
30.02
140.00
570.00
324.59
218.08
234.29
197.17
0.0001
X = mean; CV = coefficient of variation; SD = standard deviation.
