Deary, I. J., Whalley, L. J., & Starr, J. M. (2009). Childhood IQ and specific causes of death and mortality-related physical factors. In I. J. Deary, L. J. Whalley, & J. M. Starr, A lifetime of intelligence: Follow-up studies of the Scottish mental surveys of 1932 and 1947 (pp. 69-83). Washington, DC, US: American Psychological Association.
http://dx.doi.org/10.1037/11857-004
People die of specific, sometimes multiple causes, but they do die of something. In the Scottish Mental Surveys (SMSs) of 1932 and 1947 (SMS1932 and SMS1947), and in other studies reporting an IQ–mortality relationship, IQ was unlikely to be associated with all individual causes of death. IQ associations with single-disease-based deaths and with individual illnesses and their risk factors might offer tractable paths toward explanations of the IQ-all-cause mortality association. In this chapter, we give detailed examinations of the association between childhood IQ and cancer and then cardiovascular disease, its risk factors, and death. We study childhood IQs in relation to later blood pressure, smoking, smoking-related illnesses, and timing of natural menopause. (PsycINFO Database Record (c) 2016 APA, all rights reserved)