Long-term outcomes and associated factors among intensive care unit survivors in a low-income country: a multicenter prospective cohort study

Abstract

Abstract Objective Post-ICU survivors face higher mortality and often require costly rehabilitation or palliative care, such as occupational therapy, physiotherapy and hospice. However, there is a lack of data quantifying the demand for these services, particularly in developing countries like Uganda. Therefore, this prospective cohort study aimed to investigate the 90-day mortality rate, functional status, and mortality risk factors among 121 ICU patients discharged from three tertiary hospital ICUs in Uganda by tracking their vital and physical functional status for three months with follow-ups on days 30, 60, and 90, and identifying risk factors through Cox regression. Results The study revealed that 18 out of 121 ICU patients (14.88%, 95% CI: 9.52-22.51%) died within 90 days post-discharge, while 36.36% achieved normal physical functional status. Factors associated with higher 90-day mortality included raised intracranial pressure (HR 1.92, 95% CI: 1.76–2.79, p = 0.04), acute kidney injury (HR 4.13, 95% CI: 2.16–7.89, p < 0.01), and renal replacement therapy (HR 3.34, 95% CI: 2.21–5.06, p < 0.01). The high mortality rate and the fact that nearly two-thirds of patients did not attain normal functional status 90 days post discharge underscores the need for enhanced post-ICU rehabilitation services.

Keywords

• Functional status
• 90-day mortality
• Intensive care unit
• Low-income country
• Karnofsky performance status