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Table 4 Multivariable competing risk Fine-Gray regression models for first healthcare-associated infection (HAI, Model 3) or first device-related healthcare-associated infection (dr-HAI, Model 4) among the patients admitted to the main intensive care unit of Umberto I teaching hospital of Rome between 1st March and 4th April 2020

From: The impact of the COVID-19 pandemic on healthcare-associated infections in intensive care unit patients: a retrospective cohort study

  HAI (model 3) dr-HAI (model 4)
SHR (95% CI) p value SHR (95% CI) p value
COVID-19 (yes) 1.21 (0.48–3.08) 0.683 2.35 (0.85–6.45) 0.099
Sex (female) 0.86 (0.36–2.05) 0.730 0.80 (0.29–2.17) 0.660
Age (years) 0.98 (0.96–1.00) 0.068 0.96 (0.94–0.99) 0.007
Hypertension (yes) 2.04 (0.91–4.57) 0.082 1.65 (0.70–3.92) 0.255
Diabetes mellitus (yes) 1.41 (0.48–4.12) 0.529 1.16 (0.31–4.33) 0.826
Mechanical ventilation (days) 0.71 (0.57–0.88) 0.002 0.97 (0.91–1.03) 0.262
 Mechanical ventilation*time 1.02 (1.01–1.04) 0.009
  1. SHR sub-distribution hazard ratio, CI confidence interval, * interaction term