. Author manuscript; available in PMC: 2010 Jul 1.

Published in final edited form as: Cancer. 2009 Jul 1;115(13):2844–2852. doi: 10.1002/cncr.24338

Table 1.

Patient Demographics and Tumor Characteristics on Presentation

Gender
Female (%)	43 (28)
Male (%)	111 (72)

Age (yr)	Median 71
	Mean 69
	Range 35 - 88

Tumor size
Maximal diameter (cm)	Median 2.00
	Mean 2·45
	Range 0·40 - 12·00
Volume (cm³)	Median 4·18
	Mean 20·0
	Range 0·033 - 904

Radiographic characteristics
Solid (%)	147 (85)
Partially Cystic(%)	26 (15)
Solitary lesion (%)	142 (82)
Multifocal lesions (%)	31 (18)

Indication for AS
Elective (%)	115 (75)
Relative (%)	21 (13)
Absolute (%)	18 (12)

Duration of Follow-Up (months)	Median 24
	Mean 31
	Range 12 - 156