Usefulness and safety of 0.4% sodium hyaluronate solution as a submucosal fluid

Table 2 Demographic characteristics of the 40 patients at baseline

Characteristic (n = 40)
Age (years)
Median	64.0
Range	45 – 80
Sex [n (%)]
Male	27 (67.5)
Female	13 (32.5)
Location of neoplasm [n (%)]
Cecum	2 (5.0)
Ascending colon	7 (17.5)
Transverse colon	10 (25.0)
Descending colon	0 (0.0)
Sigmoid colon	14 (35.0)
Rectum	7 (17.5)
Macroscopic classification ^† [n (%)]
I p	5 (12.5)
I sp	10 (25.0)
I s	4 (10.0)
II a	12 (30.0)
Laterally spreading tumor	8 (20.0)
Other	1 (2.5)
Neoplasm size [n (%)]
5–10 mm	19 (47.5)
11–15 mm	13 (32.5)
16–20 mm	8 (20.0)

† In this trial, we classified neoplasms by the General Rules for Clinical and Pathological Studies on Cancer of the Colon, Rectum and Anus edited by the Japanese Society for Cancer of the Colon and Rectum. This macroscopic classification defines the following as the sub-superficial types. Ip: pedunculated type; Isp: semipedunculated type; Is: sessile type; IIa: superficial elevated type.

ISSN: 1471-230X