Hospital Annual Utilization Data

In addition to the annual and quarterly financial reports, all non-federal hospitals licensed in California must file an annual utilization report with the Office at the end of each calendar year. Beginning in 2002, hospitals began submitting data to OSHPD through a Internet based reporting system known as ALIRTS (Automated Licensing Information and Report Tracking System). Once a report is submitted and meets edit criteria, it immediately becomes available to the public via ALIRTS (Advanced Search). After all individual hospital reports are received and approved, OSHPD creates the Hospital Annual Utilization Data Set from which the following products are produced.

Complete Data Set

The complete Data Set of annual utilization data reported by hospitals contains basic licensing information including bed classifications; patient demographics including occupancy rates, the number of discharges and patient days by bed classification, and the number of live births; as well as information on the type of services provided including the number of surgical operating rooms, number of surgeries performed (both inpatient and outpatient), the number of cardiovascular procedures performed, and licensed emergency medical services provided. The documentation, including report forms, is available for each reporting year.

Important note about preliminary and final utilization data:

Starting with the 2005 annual utilization data file, there will be two phases of data released. The preliminary data file released in the spring will contain data that has passed the prescribed set of fatal errors in the ALIRTS system and was therefore accepted into OSHPD. The second data file released in the fall will be the desk-audited data and is considered the final version of the annual utilization data file. Please note that this preliminary set of data will only be live and downloadable on the web page up and to the point that the final version is released and then the preliminary data file will be replaced by the final data file. The pivot tables will be created in the fall for the desk audited data.

Emergency Department (ED) Pivot Trends

This pivot table was developed using Emergency Department (ED) Data collected from the 2011 - 2015 Hospital Annual Utilization Reports. It includes 5 years of trend data with charts showing the ED visits and percent admitted, visits by type, and emergency department closures with accompanying ambulance diversion hours.

The following trend reports provide longitudinal utilization information for hospitals. These reports include information on patient services provided (by bed classification); hospital demographics, surgical and other patient services, as well as information on emergency medical services* provided.


This page was last updated on Wednesday, October 11, 2017.

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