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Table 1 Patient characteristics at baseline

From: Balanced crystalloids versus saline in the intensive care unit: study protocol for a cluster-randomized, multiple-crossover trial

Patient characteristics Saline (n =) Balanced (n =)
Age, years, median [IQR]
Male sex, n (%)
White race, n (%)
Weight, kg, median [IQR]
Body mass index, kg/m2, median [IQR]
Renal comorbidities, n (%)   
 Chronic kidney disease, stage 3 or higher
 Prior RRT receipt
Source of admission to ICU, n (%)   
 Emergency department
 Transfer from another hospital
 Hospital ward
 Another ICU within the hospital
 Operating room
 Outpatient
Study ICU, n (%)   
 Medical
 Surgical
 Cardiac
 Neuro
 Trauma
Admitting diagnosis, n (%)
 Sepsis or septic shock
 Traumatic brain injury   
Mechanical ventilation, n (%)
Vasopressors, n (%)
UHC expected mortality, %, mean (95% CI)
Serum creatinine, mg/dl, median [IQR]   
 Lowest in 12 months prior to hospitalization
 No. (%) of patients
 Lowest between hospitalization and ICU admission
 No. (%) of patients
 Estimated by three-variable formula
 No. (%) of patients
 Study baseline
Acute kidney injury, stage 2 or higher
  1. ICU Intensive care unit, UHC University HealthSystem Consortium