Perioperative medicine & outcomes

Guideline Adherence of Perioperative Antibiotics and Surgical Site Infections in Noncardiac Surgery

JAMA Netw OpenPublished Cross-sectional study

Main finding · SSIResult — go to the resultRelative risk 1.34 95% CI 1.26–1.43

Authors' conclusion

This cross-sectional study found that IDSA guideline nonadherence, including incorrect antibiotic choice and missed intraoperative redosing, was common and associated with increased SSI risk, despite high adherence to SCIP timing metrics.

Study context

Population
Adults (≥18 y) undergoing noncardiac surgery with skin incision, 2014–2022, MPOG, NSQIP and Michigan Surgical Quality Collaborative registries
Participants
119,236 adults · 37 institutions
Exposure
Nonadherence vs adherence to Infectious Diseases Society of America (IDSA)-defined antibiotic metrics
Outcome
SSI (superficial, deep tissue or organ-space infection)
Methodological detailsnationwide, multicentre, hierarchical generalized linear mixed models
  • Nationwide
  • Multicentre
  • Hierarchical generalized linear mixed models

Main finding

SSI

Relative risk

1.34

95% CI 1.26–1.43

Nonadherent vs Adherent
RR 1.34 (95% CI 1.26–1.43)

As reported in the abstract

SSI overall
4.4%

Observational data: associations, not effects.

Further findings

SSI by individual metric nonadherence

RR (95% CI)
Nonadherence to antibiotic choice1.43 (1.33–1.53)
Failure to redose intraoperatively1.12 (1.02–1.24)

Nonadherence rates by IDSA metric

Any IDSA metric
26.1%
Antibiotic choice
13.3%
Weight-adjusted dosing
9.0%
Timing relative to incision
3.0%
Intraoperative redosing interval
4.8%

Original publication

Guideline Adherence of Perioperative Antibiotics and Surgical Site Infections in Noncardiac Surgery. JAMA Netw Open. Published 2 February 2026. doi:10.1001/jamanetworkopen.2025.59349

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