Abstract:
This study aims the predictor variables for the duration of a ventilator in ICU
patients. Method: This is a retrospective study design with 36 respondents who were selected by
purposive sampling technique. This research data is secondary data obtained from the medical
records of patients from January until December 2019. The instrument utilized was the
observation sheet to observe the predictor variables for the mechanical ventilator duration. The
statistical tests applied were the Spearman correlation test, logistic regression test, and ROC
curve. Result: Based on the results of logistic regression, it was found that GCS (OR 16.114
(1.537-168.895), p-value 0.020), FiO2 (OR 0.778 (0.34-17.711), p-value 0.003), MSOFA (0.481
(0.053- 4.331, p-value 0.009), and based on this result found SpO2 / FiO2 ratio (OR 26.369
(2.755-252.373), p-value 0.005) is the most influential predictor of ventilator duration. The
sensitivity of the SpO2 / FiO2 ratio was 42%, specificity of 36.1% (AUC 0.824, p-value
0.001). Conclusion: The SpO2/FiO2 ratio is the most influential predictor of the duration of
ventilator use on ICU patients.
