To the Editor: From a cross-sectional analysis of urinary chemical concentrations and health status in the general US adult population, Dr Lang and colleagues1 reported that BPA was associated with cardiovascular diagnoses, diabetes, and abnormal liver enzyme concentrations. However, the potential for false positives, briefly mentioned but not analyzed, is substantial when the complete Centers for Disease Control and Prevention (CDC) design is examined.
Young SS, Yu M. Association of Bisphenol A With Diabetes and Other Abnormalities. JAMA. 2009;301(7):720-722. doi:10.1001/jama.2009.122