HEALTHCARE-ASSOCIATED INFECTIONS (HAI) PROGRAM

California Hospital HAI Interactive Report

Healthcare-associated infections (HAIs) are infections that patients develop during the course of receiving health care. HAIs are the most common complication of hospital care, occurring in approximately one in every thirty-one patients! California acute care hospitals track and report to CDPH five types of HAIs:

Executive Summary

Executive Summary (PDF)

Numbers of HAIs Reported by California Hospitals in 2023 and Comparisons with Previous Year

In 2023, 403 California hospitals reported a total of 11948 HAIs, which was 805 fewer than in 2022.

HAI Type	Number of HAIs Reported by California Hospitals in 2023	Comparison with Number of HAIs Reported in 2022	2023 California HAI Standardized Infection Ratio (SIR)/Rate Compared with 2022*
CDI	4353	↓ 234	↓ 3.92% since 2022†
CLABSI	2304	↓ 373	↓ 11.49% since 2022†
MRSA BSI	760	↓ 193	↓ 20.43% since 2022†
VRE BSI	652	↓ 82	↓ 9.3% since 2022†
SSI	3879	↑ 77	↑ 1.18% since 2022

*Comparisons are between Standardized Infection Ratios (SIRs) for CDI, CLABSI, MRSA BSI, and SSI, and incidence rates for VRE BSI.
†Difference is statistically significant at α=0.05

CDPH reports CLABSI, MRSA BSI, CDI and SSI incidence using the standardized infection ratio (SIR), a comparative measure calculated by comparing the number of HAIs reported by the hospital with the number of HAIs predicted using 2015 national baseline data. The predicted number of infections is determined by a risk adjustment process that accounts for differences in hospital and patient characteristics.

Healthcare-Associated Infection Incidence in California Hospitals, 2017-2023

In 2023, the statewide SIRs for CLABSI, MRSA BSI, CDI and SSI were all significantly lower or better than 2015 national baselines. Following substantial increases in 2020, statewide SIRs for CLABSI and MRSA BSI decreased between 2022 and 2023, although the 2023 CLABSI SIR remained higher than in 2019.

HAI Incidence in California Hospitals, 2017-2023 for CLABSI, MRSA, CDI and SSI by the SIR

List of hospitals with incomplete reporting of HAI data for 2023 (PDF)
List of hospitals that did not participate in 2023 Internal HAI data validation

Previous Annual

HAI Reports

CA Health and Human Services
Open Data Portal

(select Diseases and Conditions)

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Find and Compare Hospital HAI Reports

Welcome to the California hospital HAI dashboard. Here you can search for an individual hospital profile, compare up to three hospitals’ data side-by-side, and view statewide and county-level profiles.

Download complete data sets from Health and Human Services Open Data Portal: CDI | CLABSI | MRSA BSI | VRE BSI | SSI