Efficacy, Safety, and Overall Quality of Life of Endoscopic Submucosal Dissection for Early Colorectal Cancer in Elderly Patients
Table 1
Patients’ baseline and clinicopathological characteristics in the elderly and nonelderly groups.
Elderly group ()
Nonelderly group ()
value
Gender ratio (M : F)
60/49
158/112
0.309
Age (year)
72.6 ± 3.6
65.8 ± 9.2
BMI
22.4 ± 3.2
22.6 ± 3.7
0.873
Location (n)
0.241
Rectum
39
94
Sigmoid colon
26
73
Descending colon
24
68
Transverse colon
18
38
Ascending colon
6
15
Lesions (n)
113
288
pT stage
0.282
Tis
76
202
T1a
33
86
Endoscopic classification
0.307
I
45
104
II
60
146
LST
8
38
Pathological pattern (n)
0.276
Papillary adenocarcinoma
52
124
Tubular adenocarcinoma
45
99
Mucous adenocarcinoma
13
49
Signet ring cell carcinoma
1
4
Others
2
12
Lesion size (mm)
29.7 ± 7.6
28.7 ± 6.8
0.643
Mean procedure time (min)
56.1 ± 12.9
55.9 ± 14.0
0.672
Hospitalization days
5.9 ± 2.4
5.4 ± 2.6
0.658
Complete resection
105/113 (93.0%)
273/288 (94.8%)
0.347
En bloc resection
107/113 (94.7%)
278/288 (96.5%)
0.312
BMI: body mass index; LST: laterally spreading tumor: “Others” means undifferentiated carcinoma, squamous carcinoma, adenosquamous carcinoma, clear cell carcinoma, neuroendocrine carcinoma, and so forth.
