Table 1. Sample types and numbers stored at baseline and at year 3.

(a) BASELINE TIMEPOINT
		500 μL aliquots		250 μL aliquots		All aliquots
Sample Type	No. Pts	Total	Av/pt	Total	Av/pt	Total	Av/pt	Target /pt
EDTA Plasma	11,985	225,095	18	108,390	9	333,485	27	28
NaC Plasma	11,820	11,137	1	103,415	8	114,542	9	10
SST Serum	12,011	43,341	4	75,600	6	118,931	10	10
RBC	11,980	47,881	4	-	-	47,881	4	4
Urine	12,021	71,807	6	-	-	71,807	6	6
Buffy coat	11,985	71,815	6	-	-	71,815	6	6
Total	12,219	471,076	39	287,405	23	758,481	62	64
(b) YEAR 3 TIMEPOINT
		500 μL aliquots		250 μL aliquots		All aliquots
Sample Type	No. Pts	Total	Av/pt	Total	Av/pt	Total	Av/pt	Target /pt
EDTA Plasma	10,371	194,086	18	96,099	9	290,185	27	28
NaC Plasma	10,230	6,727	1	91,657	9	98,384	9	10
SST Serum	10,373	37,516	4	65,632	6	103,148	10	10
RBC	10,356	41,628	4	-	-	41,628	4	4
Urine	10,225	61,340	6	-	-	61,340	6	6
Buffy coat	10,368	41,732	4	-	-	41,732	4	4
Total	10,617	341,297	37	295,120	24	636,417	60	62

This table shows the number of participants with at least 1 aliquot of each sample type; Av/pt columns display the average number of aliquots of each sample type, to the nearest whole number, across the entire Biobank cohort of participants with stored blood and/or urine at (a) baseline (12,219) or (b) year 3 (10,617). Target/pt is the maximum number of tube types per participant’s collection. Total No. Pts is the number of participants with blood or urine components stored. EDTA = ethylenediaminetetraacetic acid, NaC = sodium citrate, SST = serum separator tube, RBC = packed red blood cells.