Table 4.

Details of 34 patients with gastrointestinal submucosal tumors

	Extremely low plus low risk (n = 28)	Intermediate risk (n = 3)	High risk (n = 3)	Total (n = 34)
Follow-up period, median (range), mo	31.0 (6.6-210)	47.3 (11.2-49.9)	12.4 (7.4-16.7)	27.3 (6.6-210)
Initial tumor diameter, median (range), mm	18.6 (10.9-30.0)	28.5 (20.0-44.8)	25.5 (14.0-27.3)	19.0 (10.9-44.8)
Doubling time, median (range), mo	24.0 (2.0-183.6)	17.1 (6.1-19.4)	3.9 (0.8-10.4)	17.2 (0.8-183.6)

Risk classification: Based on tumor diameter and mitotic figures.