PhenX Toolkit. (2016).
Tobacco - 30-Day Quantity and Frequency - Adolescent. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/030803 PhenX Toolkit. (2016).
Tobacco - 30-Day Quantity and Frequency - Adult. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/030804 PhenX Toolkit. (2009).
Alcohol - Lifetime Use. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/030101 PhenX Toolkit. (2009).
Alcohol - 30-Day Quantity and Frequency. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/030301 PhenX Toolkit. (2016).
Alcohol - Age of First Use. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/030202 PhenX Toolkit. (2017).
Substances - Lifetime Use. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/031102 PhenX Toolkit. (2016).
Substances - 30-Day Frequency. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/031302 PhenX Toolkit. (2016).
Substances - Age of First Use. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/031202 PhenX Toolkit. (2010).
Perceived Stress. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/180801 PhenX Toolkit. (2010).
Life Events - Child. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/211501 PhenX Toolkit. (2010).
Life Events - Adult. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/211502 PhenX Toolkit. (2016).
Cigarette Smoking Status - Adolescent. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/030603 PhenX Toolkit. (2016).
Cigarette Smoking Status - Adult. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/030604 PhenX Toolkit. (2009).
Tobacco - Age of Initiation of Use - Adolescent. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/030701 PhenX Toolkit. (2009).
Age of Initiation of First Cigarette Use - Adult. Retrieved October 27, 2026, from
https://doi.org/10.82568/phenx_toolkit/030703
Hamilton, C. M., Strader, L. C., Pratt, J. G., Maiese, D., Hendershot, T., Kwok, R. K., Hammond, J. A., Huggins, W., Jackman, D., Pan, H., Nettles, D. S., Beaty, T. H., Farrer, L. A., Kraft, P., Marazita, M. L., Ordovas, J. M., Pato, C. N., Spitz, M. R., Wagener, D., Williams, M., … Haines, J. (2011). The PhenX Toolkit: get the most from your measures. American journal of epidemiology, 174(3), 253–260.
https://doi.org/10.1093/aje/kwr193