Sociodemographic predictive factors of increased hospital stay and cost among hospitalised patients with pressure injuries—National Inpatient Sample 2009–2019 (pooled sample)

Pressure injuries (PIs) pose a significant health burden, particularly among hospitalised patients. Understanding the sociodemographic factors influencing length and cost of hospital stay is crucial for addressing healthcare disparities. This study investigated the associations between sociodemographic factors and hospital stay outcomes among patients with pressure injuries in the United States from 2009 to 2019. Using the National Inpatient Sample (NIS), we analysed data from 1,252,729 patients with pressure injuries. We performed survey-weighted multivariable linear regression to assess the impact of sociodemographic factors on hospital stay duration and costs. Minority racial groups, lower-income patients, and those with non-Medicare insurance experienced longer hospital stays and higher costs. Older age groups (≥30 years) had shorter stays and lower costs. Significant disparities exist in hospital outcomes for patients with pressure injuries. Targeted interventions are needed to address these inequalities and improve patient care.