Table 1.

List of primary sampling tubes contained in the sampling kit for The Danish Center for Strategic Research in Type II Diabetes (further details on local processing are given in the fourth column)

Number of tubes	Tube volume	Additive	Processing
2	9 mL	Lithium heparin	Spun and plasma is aliquoted into four cryostorage tubes
2	2.7 mL	Citrate	Spun and plasma is aliquoted into two cryostorage tubes
2	9 mL	EDTA	Spun, the plasma is aliquoted into four cryostorage tubes, and the buffy coat is skimmed and aliquoted in two cryostorage tubes
2	4 mL	EDTA	No processing, whole blood sent in primary tubes
2	3 mL	Fluoride citrate	Spun and plasma is aliquoted into two cryostorage tubes
2	9 ml	None	Spun and plasma is aliquoted into four cryostorage tubes
1	10 mL	Conical tube for urine	Urine aliquoted into four cryostorage tubes
Total 13	Total mL blood = 73.4		Total aliquots frozen = 24

Abbreviation: EDTA, ethylenediamine tetra-acetic acid.