Variable Label (VAR)	Variable Name	Category	N(%)	N(Missing)	Mean(SD)	Median(Q1,Q3)	Range of Values	
A1. Blind_ID	BLIND_ID			4(0)	404.50(285.46)	470.00(200.00,609.00)	12.00-666.00	
								
A2. Study visit	VISIT	Genetics visit	4(100.0)					
								
A3. Person who is withdrawing	PERSON	Study subject	4(100.0)					
								
B1. Patient age (years) at Withdrawal	PATIENT_AGE_W			4(0)	8.43(2.94)	8.09(6.42,10.45)	5.23-12.31	
								
B2. How many samples have been sent to the biorepository?	SAMPL_NUM			4(0)	2.75(2.75)	2.50(0.50,5.00)	0.00-6.00	
								
B3. What type of withdrawal has the subject requested?	REMOVE	Remove ID	4(100.0)					
								
Z1. How long did it take to complete this form?	COMP_TIME			4(0)			0:02- 1:00