Our specimen are available to qualified researchers both at the University of Wisconsin-Madison and at other research institutions. You can inquire about the specimen availability based on other specific criteria using the form below.

Biosample availability by demographic characteristics

(Number of participants per category)

 MaleFemaleUrbanRuralNon-Hispanic whiteBlack or African AmericanHispanicOther
Serum 1750 2186 2452 1484 3426 203 118 183
Plasma 1754 2188 2457 1485 3434 202 118 182
Urine 1696 2128 2369 1455 3338 187 115 178
DNA 1758 2197 2465 1490 3444 203 118 185

Biosample availability by age group

(Number of participants per category)

 18<3030<4040<5050<6060<7070-plus
Serum 493 650 699 923 765 405
Plasma 493 652 699 922 767 408
Urine 474 639 682 898 743 387
DNA 494 655 702 626 769 409

Biosample availability by phenotype/disease characteristics

(Number of participants per category)

 HypertensionDiabetes type I and IIBody Mass Index (BMI)
  Yes No Yes No <25 25<30 30+
Serum 1389 2509 421 3428 1109 1276 1550
Plasma 1394 2510 421 3435 1111 1279 1551
Urine 1348 2440 396 3347 1085 1237 1501
DNA 1396 2522 421 3444 1117 1284 1554