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Table 1 Follow-up periods for all study endpoints

From: Continuous versus intermittent endotracheal cuff pressure control for the prevention of ventilator-associated respiratory infections in Vietnam: study protocol for a randomised controlled trial

Endpoint

Beginning of follow-up

End of follow-up/censoring event (soonest event applies, except where specified)

Primary

 VARI

Randomisation

ICU discharge/death/transfer or 90 days

Secondary

 Microbiologically confirmed VARI

Randomisation

ICU discharge/death/transfer or 90 days

 Clinical and microbiologically confirmed VAP

Randomisation

ICU discharge/death/transfer or 90 days

 Intubated days not receiving antibiotics

Randomisation

ICU discharge/death/transfer or 90 days

 Incidence of HAI

Randomisation

Extubation/death/transfer/discharge from ICU or 90 days

 Days ventilated/in ICU

Randomisation

ICU discharge, death, transfer

 Cost of ICU stay

ICU admission

ICU discharge/death/transfer

 Cost of antibiotics in ICU stay

ICU admission

ICU discharge/death/transfer

 Cost of hospital stay

Hospital admission

Hospital discharge

 28-Day mortality

Randomisation

28 Days after randomisation

 90-Day mortality

Randomisation

90 Days after randomisation

 ICU mortality

Randomisation

Discharge from ICU or death/palliative discharge from ICU

 Hospital mortality

Randomisation

Discharge from hospital or death/palliative discharge from hospital

  1. Abbreviations: VARI Ventilator-associated respiratory infection, ICU Intensive care unit, VAP Ventilator-associated pneumonia, HAI Hospital-acquired infection