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Table 1 Procedures included in each cluster

From: Early recognition and response to increases in surgical site infections using optimized statistical process control charts—the Early 2RIS Trial: a multicenter cluster randomized controlled trial with stepped wedge design

Cluster Procedure
Cardiac Coronary artery bypass graft
Cardiac valve replacement
GI Colon
Herniorrhaphy
Joint Knee arthroplasty
Hip arthroplasty
OB-GYN Cesarean section
Hysterectomy
Vaginal hysterectomy
Spine Spinal fusion
Laminectomy
Vascular Carotid endarterectomy
Peripheral venous bypass