Researchers at the University of Pennsylvania found that Some variables might differ between the subjects in the patients who are divorced, separated, or widowed had study who were married versus those who are divorced, approximately a 40% greater chance of dying or developing separated, or widowed. a new functional disability in the first two years following cardiac surgery than their married peers. The data included 1576 subjects who underwent cardiac surgery, of which Identify if any of these variables are possible 65% were married; 33% were divorced, separated, or confounding variables. widowed; and 2% had never been married. The findings were reported to be statistically significant. price of the surgery access to care emotional support financial support Marc Neuman and Rachel Werner, "Marital status and postoperative functional recovery," Journal of the American Medical Association Surgery, 151 (2016), length of the surgery ess pp. 194-196