Disparities in mortality of hispanic patients with cystic fibrosis in the United States a national and regional cohort study

Jason Rho, Chul Ahn, Ang Gao, Gregory S. Sawicki, Ashley Keller, Raksha Jain

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Rationale: Patients of Hispanic origin with cystic fibrosis (CF) are the largest growing minority, representing 8.5% of patients with CF in the United States. No national survival analysis of this group has ever been undertaken. Objectives: We aimed to determine whether Hispanic ethnicity within the CF population is associated with worse outcomes and whether any geographic differences exist. Methods: Using U.S. Cystic Fibrosis Foundation Patient Registry data from 2010 to 2014, we performed a retrospective cohort analysis comparing survival rates between Hispanics and non- Hispanics using Kaplan-Meier and Cox regression analysis. A subject's residence was categorized into geographic regions based on U.S. Census Bureau data: Northeast, Midwest, West, and South. Measurements and Main Results: A total of 29,637 patients were included in the study; 2,493 identified themselves as Hispanic. Hispanics had a lower survival probability overall, with a mean age of death of 22.469.9 years compared with non-Hispanics of 28.16 10.0 years (P,0.0001). Multivariate Cox proportional hazards modeling revealed that Hispanic patients with CF had a 1.27 times higher rate of death compared with non-Hispanics (95% confidence interval, 1.05-1.53) after adjusting for covariates including age, sex, genetic mutations, bacterial cultures, lung function, body mass index, use of CF respiratory therapies, low socioeconomic status, pancreatic enzyme use, and CF-related diabetes. When analyzed by region, Hispanics in the Midwest, Northeast, and West had shorter median survivals compared with non-Hispanics, which was not demonstrated in the South. Conclusions: Patients with CF of Hispanic origin have a higher mortality rate than non-Hispanic patients with CF. This pattern was seen in the Midwest, Northeast, and West but not in the South.

Original languageEnglish (US)
Pages (from-to)1055-1063
Number of pages9
JournalAmerican Journal of Respiratory and Critical Care Medicine
Volume198
Issue number8
DOIs
StatePublished - Oct 15 2018

Keywords

  • Cystic fibrosis
  • Disparity
  • Hispanic
  • Mortality
  • Regional

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine

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