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Health Care-Associated Infections: Knee Arthroplasty Surgical Site Infections, New Jersey Hospitals, 2010 to 2020

Indicator Report Data View Options

Year201020112012201320142015201620172018201920200.00.51.01.52.0Standardized Infection RatioHealth Care-Associated Infections: Knee Arthroplasty Surgical Site Infections, New Jersey Hospitals, 2010 to 2020
YearStandardized Infection Ratio95% Confidence Interval, Lower Limit95% Confidence Interval, Upper LimitNumber of observed infectionsNumber of expected infections
201020100.950.751.197781
201120111.120.921.389786
201220120.860.681.067891
201320130.610.470.786199
201420140.570.430.7358102
201520150.620.480.7864104
201620161.531.231.878958
201720171.020.791.306362
201820181.070.831.356561
201920190.960.741.226063
202020201.451.121.856142

Why Is This Important?

Healthcare-associated infections are among the top causes of unnecessary illnesses and deaths in the United States.1

Definition

Infections that are acquired in a health care setting, as measured by a standardized infection ratio (SIR)

A standardized infection ratio (SIR) lower than 1.0 means the actual number is lower than expected.
A standardized infection ratio (SIR) higher than 1.0 means the actual number is greater than expected.

All objectives and data are for hospitals only. Ambulatory surgery centers are not included.

Data Notes

This is HNJ2020 Objective HAI-6.

Data Source

Healthcare-Associated Infections, National Healthcare Safety Network (NHSN), Centers for Disease Control and Prevention
(https://www.cdc.gov/nhsn/index.html)

How the Measure is Calculated

  • Numerator:

    Total number of "observed" or actual infections
  • Denominator:

    Total number of "expected" infections (derived from the national baseline)

Data Issues

New baselines were calculated by CDC in 2015. As a result, SIRs for 2016 and subsequent years may be higher than those for 2010-2015.
Due to the COVID-19 pandemic, acute care hospitals were only required to submit data during the second half of 2020.

Related Health Objectives and Indicators




Health Topic Pages Related to: Health Care-Associated Infections

Indicator Data Last Updated On 05/04/2022, Published on 06/04/2024
Health Care Quality Assessment, New Jersey Department of Health, PO Box 360, Trenton, NJ 08625-0360, e-mail: hcqa@doh.nj.gov (https://nj.gov/health/healthcarequality/)