Evaluating for Racial Disparities in the Utilization of Minimally Invasive Hysterectomy for the Treatment of Uterine Leiomyoma

Introduction: Minimally invasive hysterectomy (MIH) for benign gynecologic indications has many patient advantages over traditional abdominal hysterectomy (AH) including decreased hospital stay, decreased mortality, and faster recovery. Although MIH has been shown to improve outcomes as compared with abdominal hysterectomy, racial and socioeconomic disparities can impact patient access to the minimally invasive procedure. Previous studies have demonstrated that Black and Hispanic-identifying patients are significantly less likely to receive a MIH when compared to White patients. One proposed contributor to this finding is the higher rate and delayed diagnosis of uterine leiomyoma in Black patients compared to White patients. This disparity could delay diagnosis, and cause a larger leiomyoma necessitating use of abdominal hysterectomy. Another explanation in disparity is the physician training at hospitals in underserved areas. This study aims to investigate if race impacts access to MIH for leiomyoma at Carle Foundation Hospital in Urbana, Illinois. Methods: This retrospective analysis studied patients from 2011-2020 who received a hysterectomy at Carle Foundation Hospital for a primary diagnosis of leiomyoma. MIH included laparoscopic, vaginal, and robotic-assisted. Hysterectomies for malignancy were excluded. The demographic data included age, race, body mass index (BMI), type of hysterectomy, insurance, history of previous obstetric and abdominal surgeries, and uterine weight. The race categories included White, Black, and Others. Hispanic and Asian patients were placed into the other category due to the limited sample size. Descriptive statistics were used to evaluate the demographic data. Odd ratios were calculated to determine if a patient received a MIH over an AH based on race. An adjusted odds ratio was calculated to account for BMI, uterine weight, history of cesarean section, and previous abdominal surgery. Results: A total of 324 hysterectomies from 2011-2020 were performed for leiomyoma. Abdominal hysterectomies accounted for 32.1% and MIH accounted for 68.9%, with 7.4% being laparoscopic, 5.6% being vaginal, and 55.9% being robotic-assisted. The average age of White patients was 46.7 years old, and was higher than Black patients, 43.6 years old (p<.01). The average BMI of Black patients was 34.6 kg/m2, and was higher than White patients, 30.3 34.6 kg/m2 (p<.01). More White patients had commercial insurance at 83.5% compared to Black patients at 48.1% (p<.01). More Black patients had Medicaid or Medicare at 50.6% compared to White patients at 14.8% (p<.01). Black patients had an average uterine weight at 579.8g compared to White patients at 438.6g (p<.05). The majority (73.7%) of White patients received a MIH, with 26.3% receiving an AH. Forty five percent of Black patients received an AH while 54.5% received a MIH. Conclusion: At Carle Foundation Hospital during the years 2011-2020, a lower percentage of African American patients, compared to white patients, received a minimally invasive hysterectomy in the treatment of uterine leiomyoma. Further analysis will investigate for the odds ratios of each group receiving a MIH and will adjust for BMI, uterine weight, obstetric and abdominal surgical history.