These data were simulated based on variables in table S4 of the supplemental materials for: Brender, J. D.,  P. J. Weyer, P. A. Romitti, B. P. Mohanty, M. U. Shinde, A. M. Vuong, J. R. Sharkey, D. Dwivedi, S. A. Horel, J. Kantamneni, J. C. Huber, Jr., Q. Zheng,  M. M. Werler, K. E. Kelley, J. S. Griesenbeck, F. B. Zhan, P. H. Langlois, L. Suarez, M. A. Canfield, and the National Birth Defects Prevention Study. 2013. Prenatal nitrate intake from drinking water and selected birth defects in offspring of participants in the national birth defects prevention study.  Environmental Health Perspectives 121: 1083-1089. https://doi.org/10.1289/ehp.1206249.