Table 1.

Follow-up chart

	Study period
	Screening	Procedure	4 wk	1 yr	2 yr	5 yr
Outpatient visit	X		X	X	X	X
Physical examination	X		X	X	X	X
Informed consent	X
Inclusion criteria	X
Randomization	X
CEAP/VCSS	X		X	X	X	X
Ultrasound	X		X	X	X	X
Pain score		X	X
AVVQ	X		X	X	X	X
SF-36	X		X	X	X	X

AVVQ, Aberdeen Varicose Vein Questionnaire; CEAP, Clinical Etiology Anatomy Pathophysiology classification; SF-36, Short Form 36-Item Health Survey; VCSS, Venous Clinical Severity Score.