Rationale: Patients admitted to the Intensive Care Unit (ICU) often require respiratory support in terms of mechanical ventilation (either non-invasive or invasive). Though these patients may be diverse in clinical characteristics, the need of respiratory support in itself is in many conditions a factor relating poorer outcomes. The exact association of the requirement of respiratory support in our patient population is missing in the current literature. This study will look at 5-year data of patients admitted to the ICUs of Tribhuvan University Teaching Hospital and try to characterize these patients according to their clinical profile. Further, this study will also help to generate data regarding the outcomes of such patients.

Study Objective: To characterize the patients requiring respiratory support in the ICUs of TUTH and find their outcomes in terms of ICU mortality.

Design: A registry based, retrospective, descriptive, cohort study. Sample size: Convenience sampling of all the patients who are admitted to the ICU.

Duration: Retrospective data from the 5-year period between November 1, 2019 to December 31, 2024.

Place: Intensive care units (ICUs), Tribhuvan University Teaching Hospital (TUTH).

Interventions: Not applicable Expected results: The study will help determine the clinical characteristics of patients admitted to the ICUs of TUTH requiring respiratory support and their associated outcomes.

Inclusion Criteria:

• Age>18 years
• Admission to the ICU

Exclusion Criteria:

None

All patients admitted to the ICU