Standardized Infection Ratio for Surgical Site Infection after Colon Surgery: Discord in Models Measuring Healthcare...

Area of Science:

• Healthcare quality measurement
• Infectious disease epidemiology
• Public health reporting

Background:

• Publicly reported surgical site infection (SSI) metrics, termed standardized infection ratios (SIRs), influence hospital quality perceptions.
• Multiple SIR metrics are published by the government, potentially creating confusion.

Purpose of the Study:

• To assess the concordance of different government-published SSI metrics (SIRs) in a pilot study.
• To determine if varying SIR values lead to contradictory conclusions regarding hospital quality.

Main Methods:

• A non-random, cross-sectional, observational pilot study was conducted.
• Data from colon surgery and SSI were voluntarily submitted by 20 California hospitals.
• Standardized infection ratio (SIR) values were analyzed for discordance.

Main Results:

• Discordant SIR values were observed in 35% of the participating hospitals.
• These discordant SIRs led to contradictory conclusions about hospital quality in a significant portion of cases.
• The findings highlight potential issues with the current public reporting of SSI metrics.

Conclusions:

• Existing government-reported SSI metrics (SIRs) may not consistently reflect hospital performance.
• Discordance in SIR values can undermine accurate assessments of hospital quality.
• Further investigation into the reliability and interpretation of public SSI reporting is warranted.