Study Reveals Link Between Marriage Status and Cancer Risk
- New research from the University of Miami suggests that marital status may serve as a significant indicator of a person's risk of developing cancer.
- The study, published in Cancer Research Communications, indicates that this increased risk is present across nearly every major cancer type.
- The data revealed a substantial gap in cancer likelihood based on marital status and sex.
New research from the University of Miami suggests that marital status may serve as a significant indicator of a person’s risk of developing cancer. A large-scale study involving more than 4 million Americans across 12 states found that adults who have never been married face a higher risk of developing various types of cancer compared to those who are or were married.
The study, published in Cancer Research Communications, indicates that this increased risk is present across nearly every major cancer type. The findings are particularly pronounced for preventable cancers, including those linked to infection and smoking.
Statistical Risk by Gender
The data revealed a substantial gap in cancer likelihood based on marital status and sex. Men who never married were found to have a 70% higher likelihood of cancer than married men. For women, the disparity was even more significant, with never-married individuals facing an 85% higher risk.
Certain cancer types showed even more dramatic differences. The study found that adult men who had never married had approximately five times the rate of anal cancer compared to married men. Similarly, adult women who had never married had nearly three times the rate of cervical cancer compared to women who were or had been married.
Study Methodology and Scope
Between 2015 and 2022, researchers examined cancer cases diagnosed in individuals aged 30 or older. The team compared the rates of various cancers against the marital status of the participants, adjusting the data for age and breaking it down by race and sex.
While previous research has established that marriage is associated with better survival rates after a cancer diagnosis and earlier detection, this study is among the first to suggest that marital status could be a marker for whether a person develops cancer in the first place.
Paulo Pinheiro, Ph.D., research professor of epidemiology at the University of Miami Miller School of Medicine
These findings suggest that social factors such as marital status may serve as important markers of cancer risk at the population level,
Public Health Implications
Researchers emphasize that these findings are not a prescription to get married, nor does the study claim that marriage itself prevents cancer. Instead, the data suggests that social factors play a role in overall health outcomes and risk profiles.
Frank Penedo, Ph.D., director of the Sylvester Survivorship and Supportive Care Institute and associate director for population sciences, stated that the findings indicate those who are not married should be particularly vigilant regarding cancer risk factors. He noted that this includes staying up to date on health care and obtaining necessary screenings.
From a public health perspective, the study suggests that prevention efforts and cancer risk awareness strategies should be targeted with attention to marital status to better reach high-risk populations.
Future Research
Dr. Pinheiro noted that the role of marriage as a protective factor in cancer risk has been largely ignored in previous research. Given the decreasing prevalence of marriage in the United States, he stated that What we have is an area that requires further study to understand the underlying social drivers of these health disparities.