The objective of this study is to determine the pattern and outcome of respiratory diseases in adults patients admitted to the Department of Chest Diseases at Assiut University Hospital.

Respiratory diseases constitute an important global health burden. Pneumonia, tuberculosis, obstructive and restrictive lung diseases, pleural diseases, and malignancies are common respiratory conditions for hospital admission.Before the emergence of COVID-19, pneumonia, including community-acquired pneumonia (CAP) and hospital-acquired pneumonia (HAP)/ventilation-associated pneumonia (VAP), was one of the most common infectious diseases, and could cause major health problems, associated with high morbidity and mortality in all age groups worldwide . The outbreak of COVID-19 has significantly changed the epidemiology of respiratory tract infection. More than 376 million people have been infected and 5 million have died in the whole world. This in addition to the long term post COVID pulmonary sequelae. Chronic obstructive pulmonary disease (COPD), lower respiratory tract infections, lung cancer and tuberculosis have been identified as top four respiratory diseases among ten leading causes of death worldwide. The forum of international respiratory societies (FIRS) estimated that 65 million people have moderate to severe COPD resulting in 3 million deaths per year, making it third leading cause of death worldwide .Currently, asthma affects an estimated 334 million people worldwide and is projected to increase to 400 million by the year 2025 .

In ;2015 10,4million people developed TB with 1.4 million global deaths were reported.

Neoplasms of the lungs are the leading cause of cancer incidence and mortality worldwide.

Inclusion Criteria:

• All adults patients admitted to the Chest Department during the study period will be included.

Exclusion Criteria:

• Patients who will die, be discharged, or be transferred before completing data collection will be excluded from our study.

Prospective, descriptive and analytical study.