Table 1.

Design and characteristics of tissue microarrays across participating studies

StudyCasesTMAsCores per caseaCore diameter (mm)Tumor cellularitya, median (IQR)
CBCS1,244631–41.04,747 (2,422–8,403)
BWHS199101–30.61,050 (493–1,928)
WCHS477161–60.61,290 (684–2,277)

Abbreviations: BWHS, Black Women's Health Study; CBCS, Carolina Breast Cancer Study; WCHS, Women's Circle of Health Study.

  • aNumbers are reported for estrogen receptor (ER), with similar numbers for progesterone receptor (PR) and HER2.