Demographics and Hospital Outcomes in American Women With Endometriosis and Psychiatric Comorbidities

Abstract

Objectives To explore sociodemographic differences and hospital outcomes in endometriosis patients with versus without psychiatric comorbidities. Methods We conducted a cross-sectional study using the Nationwide Inpatient Sample (NIS, 2012-2014), and included 63,160 females with primary diagnosis of endometriosis. We used descriptive statistics and Pearson's chi-square test to measure the differences in demographics and utilization of gynecologic procedures by the presence of psychiatric comorbidities. Results Psychiatric comorbidities were present in 18.7% inpatients with endometriosis. About three-fourth of these inpatients were in reproductive age group 26-45 years (75.7%) and were whites (79.1%). Psychiatric comorbidities were seen more in females from middle-income families and from the midwest region of the US. There was no significant difference in the utilization of gynecological procedures by the presence of psychiatric comorbidities. However, inpatients with psychiatric comorbidities had a longer mean length of stay (2.5 vs. 2.3 days) and total charges ($35,489 vs. $34,673) compared to the non-psychiatric cohort. Anxiety disorders predominated at 45% in patients with endometriosis followed by depressive disorder (31.3%), psychotic disorders (12.3%), and drug abuse (6.3%). Conclusion Endometriosis with psychiatric comorbidities is prevalent in young white females from a middle-income family. Anxiety and depressive disorders are most prevalent and are associated with extended hospitalization stay and higher charges, thereby negatively impacting the healthcare burden compared to those without psychiatric comorbidities.

Keywords: depressive disorders; endometriosis; extended hospitalization stay; nationwide inpatient sample; psychiatric comorbidities; reproductive age group; schizophrenia and other psychotic disorders; sociodemographic differences.

Figure 1. Prevalence of psychiatric comorbidities in endometriosis inpatients

ADHD: attention-deficit/hyperactivity disorder; PTSD: post-traumatic stress disorder