|
Characteristics
|
Before PSM
|
After PSM
|
|---|
|
Younger (403)
|
Older (4196)
|
P value
|
Younger (401)
|
Older (401)
|
P value
|
|---|
|
Operation time (min)
|
236.8 ± 83.5
|
227.6 ± 83.5
|
0.038*
|
237.0 ± 83.6
|
227.9 ± 84.0
|
0.126
|
|
Blood loss (mL)
|
109.4 ± 127.3
|
106.9 ± 152.3
|
0.756
|
109.6 ± 127.6
|
105.5 ± 123.4
|
0.643
|
|
Retrieved lymph nodes
|
16.9 ± 8.8
|
14.6 ± 7.5
|
<0.001*
|
16.9 ± 8.8
|
15.0 ± 7.2
|
0.001*
|
|
Hospital stay (day)
|
11.3 ± 7.6
|
11.5 ± 8.8
|
0.682
|
11.3 ± 7.6
|
11.5 ± 8.2
|
0.731
|
|
Overall complications
|
77 (19.1%)
|
940 (22.4%)
|
0.128
|
76 (19.0%)
|
93 (23.2%)
|
0.141
|
|
Major complications
|
7 (1.7%)
|
104 (2.5%)
|
0.354
|
7 (1.7%)
|
14 (3.5%)
|
0.122
|
- Note: Variables are expressed as the mean ± SD, n (%), *P-value <0.05
- Abbreviations: PSM propensity score matching
