Impact of Spousal Mental Illness on Healthcare Utilization Among Patients With Gastrointestinal Cancer

ABSTRACT Background Informal caregiving involves increased responsibilities, with financial and emotional challenges, thereby affecting the well‐being of the caregiver. We aimed to investigate the effect of spousal mental illness on hospital visits and medical spending among patients with gastrointestinal (GI) cancer. Methods Patients who underwent GI cancer surgery between 2013 and 2020 were identified from the IBM Marketscan database. Multivariable regression analysis was used to examine the association between spousal mental illness and healthcare utilization. Results A total of 6,035 patients underwent GI surgery for a malignant indication. Median age was 54 years (IQR: 49–59), most patients were male ( n = 3592, 59.5%), and had a CCI score of ≤ 2 ( n = 5512, 91.3%). Of note, in the 1 year follow‐up period, 19.4% (anxiety: n = 509, 8.4%; depression: n = 301, 5.0%; both anxiety and depression: n = 273, 4.5%; severe mental illness: n = 86, 1.4%) of spouses developed a mental illness. On multivariable analysis, after controlling for competing factors, spousal mental illness remained independently associated with increased odds of emergency department visits (OR 1.20, 95% CI 1.05–1.38) and becoming a super healthcare utilizer (OR 1.37, 95% CI 1.04–1.79), as well as 12.1% (95% CI 10.6–15.3) higher medical spending. Conclusion Among patients with GI cancer spousal mental illness is associated with higher rates of outpatient visits, emergency department visits, and expenditures during the 1‐year postoperative period. These findings underscore the importance of caregiving resources and counseling in alleviating caregiver burden, thereby reducing the overall burden on the healthcare system.