Length of stay is a common metric used in research studies, particularly in healthcare and hospitality settings, to measure the amount of time a person spends in a specific location or receiving a particular service. In healthcare, length of stay typically refers to the duration a patient stays in a hospital or other healthcare facility. This metric is important for evaluating the efficiency of healthcare systems, resource allocation, and patient outcomes. In hospitality, length of stay is used to analyze customer behavior, occupancy rates, and revenue generation. Researchers may examine factors that affect length of stay, such as demographics, medical conditions, treatment protocols, or customer satisfaction levels.