Race/Ethnicity-specific Disparities in In-Hospital Mortality and Hospital Charges Among Inflammatory Bowel Disease-related Hospitalizations in the United States

Patient-Reported Racial and Ethnic Disparities in Patients With Ulcerative Colitis: Results From the National Health and Wellness Survey

Background

Ulcerative colitis (UC) is an inflammatory condition characterized by chronic, disabling gastrointestinal symptoms that can have detrimental effects on psychological, social, and professional quality of life. Few studies have examined patient-reported outcomes (PROs) and economic outcomes among individuals with varying UC severity and across different racial/ethnic groups.

Methods

This cross-sectional study assessed sociodemographic data, PROs, and economic outcomes for participants from the National Health and Wellness Survey (2018, 2019, and 2020) with UC. Multivariable analyses were used to assess the association of self-reported UC severity and race/ethnicity with health-related quality of life (HRQoL), work productivity and activity impairment (WPAI), healthcare resource utilization (HCRU), and medical costs.

Results

This study included 1500 participants with UC (1150 non-Hispanic White, 99 non-Hispanic Black, and 251 Hispanic). Moderate/severe disease was associated with significantly worse HRQoL and WPAI, greater HCRU, and higher direct medical costs than mild UC. Compared with non-Hispanic White participants, non-Hispanic Black participants reported better HRQoL, whereas Hispanic participants reported more HCRU and higher medical costs. Race/ethnicity significantly interacted with UC severity level in predicting labor force participation.

Conclusions

Participants with moderate/severe disease had worse outcomes than those with mild UC. Additionally, racial/ethnic differences were found in HRQoL, employment, WPAI, HCRU, and direct medical costs. Notably, Hispanic participants showed distinct patterns, particularly in how disease severity influenced employment outcomes. Further research is needed to better understand the differential burden among patients across racial/ethnic groups.

Mortality Trends in Inflammatory Bowel Disease by Age, Sex, and Race in the United States from 1999 to 2020

BACKGROUND

The prevalence and disease course of inflammatory bowel disease (IBD) have evolved over the years. It is unknown how these factors have impacted all-cause mortality. Our study assesses IBD mortality trends in the United States over 20 years by age, sex, and race.

METHODS

We used the Centers for Disease Control Wide-Ranging OnLine Data for Epidemiologic Research database for multiple causes of death in Crohn's disease (CD) and ulcerative colitis (UC) from 1999 to 2020. Age-adjusted mortality rates (AAMR) and crude mortality rates per 100 000 population were obtained. Joinpoint Analysis Software was used for annual percentage change (APC) overall and by age, sex, and race (White and Black).

RESULTS

Overall AAMR in CD and UC were 0.79 and 0.53, respectively. All-cause mortality was stable from 1999 to 2018. There was a significant rise in APC from 2018 to 2020 (CD vs. UC, +11.28 vs. +9.29). This rise was observed across both races, sexes, and ages ≥45 years in the last 2-4 years of the study. AAMR in females compared with males varied in CD (0.81 vs. 0.79) and UC (0.45 vs. 0.62). White adults had higher AAMR than Black adults in both CD (0.94 vs. 0.50) and UC (0.58 vs. 0.28). The crude mortality rate increased with age and was highest in those ≥85 years (CD vs. UC, 5.07 vs. 5.23).

CONCLUSIONS

All-cause mortality trends in IBD were stable until 2018 and rose between 2018 and 2020. Mortality rates were higher amongst the elderly and White adults. Females with CD and males with UC had higher mortality rates.

Inequalities in Healthcare Access, Experience and Outcomes in Adults With Inflammatory Bowel Disease: A Scoping Review

BACKGROUND

Inflammatory bowel diseases (IBDs) are incurable diseases that require lifelong access to health services. Accumulating evidence of inequalities in health care access, experience, and outcomes for individuals with IBD is apparent. This review aimed to describe the inequalities in healthcare access, experiences, and outcomes of care for adults with IBD, to identify research gaps, and to identify future research priorities in this area.

METHODS

A scoping review was conducted to retrieve quantitative, qualitative, and mixed methods evidence from 3 databases (EMBASE, Medline, and CINAHL) published between January 1, 2000, and September 27, 2023.

RESULTS

Fifty-one studies met the criteria for inclusion. The majority (42 of 51) focused on IBD health outcomes, followed by healthcare access (24 of 51). Significantly fewer investigated patient experiences of IBD healthcare (8 of 51). Most available studies reported on race/ethnic disparities of healthcare (33 of 51), followed by inequalities driven by socioeconomic differences (12 of 51), rurality (7 of 51), gender and sex (3 of 51), age (2 of 51), culture (2 of 51), literacy (1 of 51), and sexuality (1 of 51). Inflammatory bowel disease patients from Black, Asian, and Hispanic ethnic groups had significantly poorer health outcomes. A lack of research was found in the sexual and gender minority community (1 of 51). No research was found to investigate inequalities in IBD patients with learning disabilities or autism.

CONCLUSIONS

Further research, particularly utilizing qualitative methods, is needed to understand health experiences of underserved patient populations with IBD. Cultural humility in IBD care is required to better serve individuals with IBD of Black and Asian race/ethnicity. The lack of research amongst sexual and gender minority groups with IBD, and with learning disabilities, poses a risk of creating inequalities within inequalities.

Racial and Ethnic Disparities in Health-Related Outcomes in Crohn's Disease: Results From the National Health and Wellness Survey

Background

Crohn's disease (CD) is a chronic inflammatory condition affecting the entire gastrointestinal tract that is associated with significant humanistic, clinical, and economic burdens. Few studies have assessed the association between CD severity and patient-reported outcomes (PROs), healthcare resource utilization (HCRU), and medical costs; even fewer have examined differences in disease outcomes among patients of various racial/ethnic groups.

Methods

In this cross-sectional study, sociodemographic data, PROs, and economic outcomes for participants with self-reported CD were collected from the National Health and Wellness Survey (2018-2020). Multivariable analyses were used to assess the association of CD severity and race/ethnicity with health-related quality of life (HRQoL), work productivity and activity impairment (WPAI), HCRU, and medical costs.

Results

Analyses included 1077 participants with CD (818 non-Hispanic White, 109 non-Hispanic Black, and 150 Hispanic). Participants with self-reported moderate/severe CD reported significantly worse HRQoL and WPAI, greater HCRU, and higher medical costs than those with self-reported mild CD. Non-Hispanic Black participants reported better HRQoL and fewer healthcare provider visits than non-Hispanic White participants. There were no significant differences in PROs between non-Hispanic White and Hispanic groups. Interactions between race/ethnicity and CD severity emerged for some, but not all groups: Specifically, non-Hispanic Black participants with moderate/severe CD reported greater absenteeism and more gastroenterologist visits than non-Hispanic Black participants with mild CD.

Conclusions

Participants with moderate/severe CD reported worse PROs, greater HCRU, and higher medical costs than those with mild CD. Additionally, racial/ethnic differences were found across several HCRU and economic outcomes. Further research is needed to better understand factors contributing to burden among patients with varying CD severity across racial/ethnic groups.

Significant Racial and Ethnic Disparities Exist in Health Care Utilization in Inflammatory Bowel Disease: A Systematic Review and Meta-analysis

BACKGROUND

The incidence of inflammatory bowel disease (IBD) is rising worldwide, though the differences in health care utilization among different races and ethnicities remains uncertain. We aimed to better define this through a systematic review and meta-analysis.

METHODS

We explored the impact of race or ethnicity on the likelihood of needing an IBD-related surgery, hospitalization, and emergency department visit. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were calculated with I2 values reporting heterogeneity. Differences in IBD phenotype and treatment between racial and ethnic groups of IBD were reported.

RESULTS

Fifty-eight studies were included. Compared with White patients, Black patients were less likely to undergo a Crohn's disease (CD; OR, 0.69; 95% CI, 0.50-0.95; I2 = 68.0%) or ulcerative colitis (OR, 0.58; 95% CI, 0.40-0.83; I2 = 85.0%) surgery, more likely to have an IBD-hospitalization (OR, 1.54; 95% CI, 1.06-2.24; I2 = 77.0%), and more likely to visit the emergency department (OR, 1.74; 95% CI, 1.32-2.30; I2 = 0%). There were no significant differences in disease behavior or biologic exposure between Black and White patients. Hispanic patients were less likely to undergo a CD surgery (OR, 0.57; 95% CI, 0.48-0.68; I2 = 0%) but more likely to be hospitalized (OR, 1.38; 95% CI, 1.01-1.88; I2 = 37.0%) compared with White patients. There were no differences in health care utilization between White and Asian or South Asian patients with IBD.

CONCLUSIONS

There remain significant differences in health care utilization among races and ethnicities in IBD. Future research is required to determine factors behind these differences to achieve equitable care for persons living with IBD.

Racial and ethnic differences in diagnosis age and blood biomarkers in a pediatric inflammatory bowel disease cohort

OBJECTIVE

Prompt diagnosis of pediatric-onset inflammatory bowel disease (IBD) is crucial for preventing a complicated disease course; however, it is not well understood how social determinants of health might affect pediatric IBD diagnosis. This study examined differences in diagnosis age, biomarkers of disease severity, and anthropometrics with sociodemographic factors in a pediatric IBD cohort.

METHODS

Pediatric IBD patients (n = 114) and their parents/caregivers were enrolled from the Children's of Alabama Pediatric IBD Clinic in Birmingham, Alabama. Primary analyses examined associations of child race and ethnicity, parental income, parental education, single-parent household status, insurance type, and distance to a tertiary pediatric gastroenterology referral center with diagnosis age. Secondary analyses examined differences in biomarker levels, height, and body mass index at the time of diagnosis.

RESULTS

Racial and ethnic minority children were diagnosed at an older age compared to Non-Hispanic White children (14.4 ± 0.40 vs. 11.7 ± 0.38 years; p < 0.001), and this trend was robust to adjustment with other sociodemographic variables. Parental attainment of a college education attenuated the link between minority race and ethnicity and the likelihood of older age at diagnosis, while other sociodemographic variables had no moderating effect. Racial and ethnic minority children were 5.7 times more likely to have clinically elevated erythrocyte sedimentation rate at diagnosis compared to Non-Hispanic White children (p = .024).

CONCLUSIONS

These results suggest that child race and ethnicity may exert a primary effect on the age at diagnosis with pediatric-onset IBD. This study highlights the need for further research on racial and ethnic disparities to promote health equity in pediatric-onset IBD.

Ethnic Disparities in Ileal Pouch Anal Anastomosis Outcomes: An ACS-NSQIP Study

INTRODUCTION

Ileal pouch-anal anastomosis (IPAA) has become the gold standard operation performed for patients with ulcerative colitis (UC) who require colectomy for medically refractory disease or colitis-associated neoplasia. This study aims to evaluate whether differences in surgical outcomes following IPAA creation is associated with minority ethnicity using data from the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) surgical outcomes database.

METHODS

The ACS-NSQIP proctectomy-targeted data files (2016-2019) were reviewed to identify patients who underwent an IPAA creation (Current Procedural Terminology codes: 44157, 44158, 44211, and 45113). Demographic, comorbidity, perioperative characteristics, and postoperative outcomes, particularly total-morbidity, surgical site infection, and anastomotic leak, were compared for White, African-American, Hispanic, and Asian patients. Separate multivariable logistic regressions were calculated for each outcome of interest. Certain postoperative outcomes required collation to be analyzed due to low numbers, such as combining all surgical site infections (SSIs), anastomotic leak, and septic complications as "infection complications". For each regression, a P value of <0.05 was considered to be significant.

RESULTS

A total of 1462 patients were identified who underwent an IPAA creation. There were 1290 (88.2%) Caucasian, 66 (4.5%) African-American, 49 (3.4%) Hispanic, and 57 (3.9%) Asian patients. Minority race or ethnicity was not associated with higher odds of total morbidity, readmission, reoperation, the development of any SSI, anastomotic leak, or other septic complications as compared to White patients. African-American ethnicity was associated with higher odds of developing postoperative bleeding complications (odds ratio [OR] 2.45, 95% confidence interval [CI] 1.15-5.21; P = 0.020) and postoperative renal dysfunction (OR 4.32, CI 1.43-13.07; P = 0.010) as compared to White patients. Elevated body mass index (BMI) was associated with higher odds of developing an SSI (OR 1.03, CI 1.00-1.06; P = 0.045), or an "infection" complication (OR 1.04, CI 1.01-1.07; P = 0.012), but was protective against bleeding complications (OR 0.94, CI 0.9-0.98; P = 0.004). Smoking was associated with higher odds of developing an SSI, anastomotic leak, or septic complications in the combined "infection" regression analysis (OR 2.02, CI 1.25-3.26; P = 0.004). In the analysis of total-morbidity, both hypertension (OR 1.64, CI 1.11-2.42; P = 0.013) and an ASA Class score >3 (OR 1.36, CI 1.03-1.79; P = 0.029) were associated with increased odds of complications.

CONCLUSIONS

This analysis of the ACS-NSQIP national database data suggests that ethnicity is not associated with disparities in surgical outcomes following IPAA surgery. African-American ethnicity was however associated with higher odds of developing postoperative bleeding complications and renal dysfunction as compared to White patients. Elevated BMI and smoking history are associated with an increased risk of SSI, anastomotic leak and septic complications.

Evaluation of Racial/Ethnic Disparities in the Surgical Management of Inflammatory Bowel Disease

BACKGROUND

Disparities in managing inflammatory bowel disease (IBD) are multifactorial and occur at all stages of treatment, including surgical management. We aim to evaluate postoperative morbidity after abdominopelvic surgery among different racial/ethnic groups after surgical management of CD and UC and account for preoperative characteristics that may impact outcomes.

METHODS

Patients were identified using the National Surgical Quality Improvement Project (NSQIP) file and merged with the targeted proctectomy (2016-2019) and colectomy file (2012-2019). All patients undergoing elective surgical management for ICD9/10 codes for CD and UC were included. The primary outcome was composite postoperative morbidity (CPM), a metric that identifies postoperative morbidity with available variables. Multivariable logistic regression modeling was performed to test the association between race/ethnicity and other risk factors with CPM. Postoperative outcomes were evaluated using propensity score modeling with 1:1 matching without replacement as a secondary analysis.

RESULTS

In both CD and UC, CPM was highest for Black patients with 27.5% (326) and 26.1% (81), respectively. Followed by Hispanic patients with a CPM of 21.1% (73) after surgery for CD (p < 0.001) and 21.2% (31) for Asian patients after resection for UC (p = 0.005). After regression modeling, we found increased odds of CPM for Black patients after surgery for UC (OR 1.48, p = 0.013) and CD (OR 1.17, p < 0.001). Following propensity score matching (PSM), stoma creation rates were higher in Asian (10.4%, p = 0.010) and Hispanic patients (11.9%, p = 0.030) undergoing surgery for CD.

CONCLUSIONS

Black patients are at increased risk of morbidity after surgery for both UC and CD. Increased morbidity in an already vulnerable population warrants targeted interventions, specifically focusing on faster access to specialized care, preoperative optimization, and culturally competent discussions on the benefits of MIS approaches are warranted in order to improve postoperative outcomes.

The Impact of the Social Determinants of Health on Disparities in Inflammatory Bowel Disease

The incidence of inflammatory bowel disease (IBD) is rising in racial and ethnic minority groups in the United States, and socioeconomic, racial, and ethnic disparities in IBD are increasingly being identified. In addition, there has been great appreciation for the social determinants of health as contributors to these disparities, and that upstream social determinants of health propagate downstream poor health outcomes in IBD. We propose strategies to achieve health equity in IBD that target the medical trainee, provider, practice, community, industry, and policy levels.

Prognostication in inflammatory bowel disease

Personalized care in inflammatory bowel diseases (IBD) hinges on parsing the heterogeneity of IBD patients through prognostication of their disease course and therapeutic response to allow for tailor-made treatment and monitoring strategies to optimize care. Herein we review the currently available predictors of outcomes in IBD and those on the both near and far horizons. We additionally discuss the importance of worldwide collaborative efforts and tools to support clinical use of these prognostication tools.

The Association of Race, Ethnicity, and Insurance Status With Outcomes in Hospitalized Patients With Ulcerative Colitis

Background and Aims

The impact of sociodemographic factors on outcomes in patients with ulcerative colitis (UC) is not well studied. We characterized the association of race/ethnicity and insurance status with procedures, length of stay (LOS), mortality, and cost of care in a cohort of hospitalized patients with UC.

Methods

Data from the National Inpatient Sample from 2016 to 2018 were used. Outcomes were analyzed using generalized estimating equations. All models included age, sex, income quartile, hospital diagnosis, hospital characteristics, and Elixhauser Comorbidity Index as well as the primary predictors.

Results

A total of 34,814 patients were included. Black (adjusted odds ratio [aOR] 0.46, 95% confidence interval [0.39-0.55]) or Hispanic (aOR 0.74, [0.64-0.86]) patients had lower odds of colectomy than White patients. Patients with Medicare (aOR 0.54, [0.48-0.62), Medicaid (aOR 0.51, [0.45-0.58]), or no insurance (aOR 0.42, [0.35-0.50]) had lower odds of colectomy than privately insured patients. Black patients had higher mortality than White patients (aOR 1.38, [1.07-1.78]). Patients with Medicare or Medicaid had 5% ([1.01-1.09]) and 9% longer LOS ([1.05-1.13]), respectively, than privately insured patients, while uninsured patients had a 6% shorter LOS ([0.90-0.97]). Hispanic or Asian/Native American patients had 11% ([1.06-1.15]) and 13% ([1.07-1.20]) higher costs, respectively, than White patients. Uninsured patients had 11% lower hospitalization costs than privately insured patients ([0.85-0.94]).

Conclusion

Hospitalized patients with UC differed significantly in rates of colectomy, mortality, LOS, and costs based on race/ethnicity and insurance status. Further research is needed to understand the cause of these differences and develop targeted solutions to reduce these inequities.

Clinical differentiation of inflammatory bowel disease (IBD) in Latin America and the Caribbean

ABSTRACT

The aim of the present study was to describe the epidemiological and clinical characteristics of inflammatory bowel disease (IBD), including medical and surgical treatments, in several countries in Latin America and the Caribbean.IBD is recognized as a global health problem because its incidence and prevalence have increased significantly over the last few years.This multicenter retrospective cohort study included 4714 patients with IBD diagnosed from 9 countries in Latin America and the Caribbean: Colombia, Cuba, Dominican Republic, Ecuador, Mexico, Peru, Puerto Rico, Uruguay, and Venezuela.Crohn disease (CD) was more frequent in Puerto Rico (71.9%), the Dominican Republic (61.0%), and Peru (53.1%). Ulcerative colitis was more frequent in Colombia (78.6%), Venezuela (78.2%), Mexico (75.5%), Cuba (69.9%), Ecuador (64.1%), and Uruguay (60.9%). The following clinical characteristics were more frequent in the Caribbean: penetrating behavior in CD, steroid dependence, steroid resistance, intolerance to thiopurines, extraintestinal manifestations, surgeries, hospitalizations due to IBD, and family history of IBD. The factors associated with the use of biological therapy were pancolitis in ulcerative colitis, penetrating behavior in CD, steroid resistance and dependence, presence of extraintestinal manifestations, and the need for surgery.This study from Latin America and the Caribbean demonstrated the different epidemiological and clinical characteristics of IBD.

High Rates of Mortality in Geriatric Patients Admitted for Inflammatory Bowel Disease Management

GOAL

The goal of this study was to evaluate the inpatient mortality risk among geriatric patients with inflammatory bowel disease (IBD).

BACKGROUND

The challenges of caring for elderly patients with IBD will increase with the aging of the US population. Given the complications of hospitalization, we set to examine if elderly patients age older than 65 were at higher risk of mortality.

MATERIALS AND METHODS

All patients with ulcerative colitis (UC) or Crohn's disease (CD) in the National Inpatient Sample (NIS) from 2016 and 2017 as the primary diagnosis or secondary diagnosis with an IBD-related cause of admission were included. Outcomes for patients aged above 65 were compared with below 65 using multivariable survey-adjusted regression. CD and UC were analyzed separately.

RESULTS

In 2016-2017, there were an estimated 162,800 admissions for CD and related complications compared with 96,450 for UC. In total, 30% of UC and 20% of CD admissions were geriatric. Geriatric status was associated with higher odds of mortality for CD [odds ratio (OR)=3.47, 95% confidence interval (CI): 2.72-4.44] and UC (OR=2.75, 95% CI: 2.16-3.49) after adjustment for comorbidities, admission type, hospital type, inpatient surgery, and IBD subtype. The cause of death was ∼80% infectious in both CD and UC in all groups. An average of 0.19 days (95% CI: 0.05-0.34) and $2467 (95% CI: 545-4388) increase was seen for geriatric CD patients. No significant change was seen for UC.

CONCLUSIONS

Age over 65 was independently associated with higher odds of death in both UC and CD patients, even after appropriate adjustment. Further research is needed to optimize care for this growing patient population.

Approach to the Management of Recently Diagnosed Inflammatory Bowel Disease Patients: A User's Guide for Adult and Pediatric Gastroenterologists

Inflammatory bowel diseases (IBDs), including Crohn's disease and ulcerative colitis, are chronic, progressive, immune-mediated diseases of adults and children that have no cure. IBD can cause significant morbidity and lead to complications such as strictures, fistulas, infections, and cancer. In children, IBD can also result in growth impairment and pubertal delays. IBD is highly heterogenous, with severity ranging from mild to severe and symptoms ranging from mild to debilitating. Delay in IBD diagnosis, especially in Crohn's disease, is common and associated with adverse outcomes. Early diagnosis and prompt institution of treatment are the cornerstones for improving outcomes and maximizing health. Early diagnosis requires a low threshold of suspicion and red flags to guide early specialist referral at the primary provider level. Although the armamentarium of IBD medications is growing, many patients will not respond to treatment, and the selection of first-line therapy is critical. Risk stratification of disease severity, based on clinical, demographic, and serologic markers, can help guide selection of first-line therapy. Clinical decision support tools, genomics, and other biomarkers of response to therapy and risk of adverse events are the future of personalized medicine. After starting appropriate therapy, it is important to confirm remission using objective end points (treat to target) with continued control of inflammation with adjustment of therapy using surrogate biomarkers (tight control). Lastly, IBD therapy extends far beyond medications, and other aspects of the overall health and wellbeing of the patient are critical. These include preventive health, nutrition, and psychobehavioral support addressing patients' concerns around complementary therapy and medication adherence, prevention of disability, and ensuring open communication.

Ethnicity Influences Risk of Inflammatory Bowel Disease (IBD)-Associated Colon Cancer: A Cross-sectional Analysis of Dysplasia Prevalence and Risk Factors in Hispanics and Non-Hispanic Whites With IBD

Background

Inflammatory bowel disease (IBD) is an emerging disease in Hispanics. In this study, we examine the prevalence of IBD-related colon dysplasia (IBD-dys) in Hispanics versus non-Hispanic whites (NHWs) and compare differences in established clinical and environmental risk factors.

Methods

We performed a cross-sectional analysis on adult Hispanics and NHWs with IBD who met criteria for colorectal cancer surveillance and were followed at our center between 2008 and 2018. Clinical variables and IBD phenotype were recorded. Lifestyle IBD-dys risk factors were examined, including smoking and lack of physical activity. Using multivariable regression, we compared the prevalence of IBD-dys in Hispanics versus NHW, using relevant covariates. Receiver operating characteristic and area under the curve were performed to find the best fitting model.

Results

A total of 445 IBD patients were included (148 Hispanics and 297 NHWs). IBD phenotype was similar between groups, except that Hispanics had shorter disease duration, a lower frequency of Crohn’s disease-related complications, and lower reported use of steroids. Frequency of surveillance colonoscopies was similar between Hispanics and NHW. There were no differences in median body mass index between Hispanics and NHW [26.5 (IQR 6.0) vs 25.0 (IQR 6.0), P = 0.40]. Hispanics were less likely than NHW to consume alcohol but smoking history was similar between groups. Three out of 148 Hispanic patients had IBD-dys (2.02%) compared to 29 out of 297 NHWs (9.76%). Adjusting for disease duration, primary sclerosing cholangitis, family history of colon cancer, and smoking, Hispanics had a lower prevalence of IBD-dys compared to NHW [ORadjusted = 0.207 (95% CI 0.046–0.938), P = 0.008].

Conclusions

Hispanics with IBD undergoing surveillance had a lower prevalence of IBD-dys than their NHW counterparts, despite similar risk factors. Future studies should examine dietary and microbial factors that may explain differences in risk.

Inflammatory polyps occur more frequently in inflammatory bowel disease than other colitis patients

BACKGROUND

Colitis is generally considered a risk factor for colon neoplasia. However, not all types of colitis seem to have equal neoplastic transformation potential.

AIM

To determine the prevalence of colorectal polyps in a predominantly African American population with inflammatory bowel disease (IBD) and Non-IBD/Non-Infectious Colitis (NIC).

METHODS

We retrospectively evaluated medical records of 1060 patients previously identified with colitis at Howard University Hospital, based on ICD-10 code. Among these, 485 patients were included in the study: 70 IBD and 415 NIC based on a thorough review of colonoscopy, pathology and clinical reports. Logistic regression analysis was applied to estimate the risk of polyps in patients with IBD compared to those with NIC after adjusting for age and sex. A subgroup analysis within the IBD group was performed.

RESULTS

Of the 485 patients, 415 were NIC and 70 were IBD. Seventy-three percent of the NIC patients and 81% of the IBD patients were African Americans. Forty six percent of IBD and 41% of NIC cases were male. IBD patients were younger than NIC patients (median age of 38 years vs. 50, P < 0.001). The prevalence of all types of polyps was 15.7 and 8.2% in the IBD and NIC groups, respectively (P = 0.045). Among patients with polyps, the prevalence of inflammatory polyps was higher in the IBD group (55%) compared to the NIC group (12%). After adjusting for age, sex and race, odds ratio of inflammatory polyps in IBD patients was 6.0 (P = 0.016). Adenoma prevalence was 4.3% (3/70) in IBD patients and 3.9% (16/415) in the NIC patients (p = 0.75). The anatomic distribution of lesions and colitis shows that polyps occur predominantly in the colitis field regardless of colitis type. More polyps were present in the ulcerative colitis patients when compared to Crohn's disease patients (27% vs. 5%, P < 0.001) within the IBD group.

CONCLUSION

Our study shows that inflammatory polyps are more common in IBD patients when compared to NIC patients. Most polyps were in the same location as the colitis.