Liggetid

Liggetid, commonly translated as length of stay, is a metric used in health care to describe how long a patient remains in a hospital from admission to discharge. In Swedish health statistics and hospital administration, liggetid is used to quantify resource use, bed occupancy, and efficiency, and it is reported in national indicators and performance dashboards. The term can be applied to individual stays or summarized across patient groups.

Calculation and interpretation are typically based on dates: liggetid equals the time between admission and discharge, usually expressed in days. In practice, there are variations depending on data sources: some systems report calendar days, others count nights spent or use discharge timestamps with fractional days. Because definitions can differ across registries and countries, comparability should be considered when aggregating data.

Data sources for liggetid include hospital information systems, patient administrative records, and national or regional health registries. These data are used for planning capacity (beds and staffing), budgeting and tariffs, and benchmarking performance between units or over time. They also inform discharge planning and pathways to post-acute care.

Factors that influence liggetid include patient characteristics (age, comorbidities), type of admission (elective or emergency), diagnostic group, treatment complexity, and the availability of appropriate post-discharge care. Limitations include data quality, transfers between units or hospitals, and differing definitional conventions, which can affect cross-site comparisons.

Related concepts include average or median length of stay, bed occupancy rate, and readmission rate.