Flow-chart of the study population.

<p>Flow-chart of the study population.</p

Comparison of patients admitted during on-hours to those admitted during weeknights, and to those admitted during weekends and public holidays.

<p>Weekend admission was defined as admission between 08:00 am Sunday and 7:59 am Monday; BMI: body mass index; SAPS II: simplified acute physiology score II; ICU: intensive care unit; LOS: length of stay; “SAMU”: Service d’Aide Médicale Urgente: mobile emergency team; p: On-hours vs Week-night; p*: On-hours vs weekends and public holidays.</p

Univariate Cox model of factors associated with ICU mortality.

<p>* As compared with female; Ref: reference category; reduced staff: weekend and public holydays admissions; RRT: renal replacement therapy; “SAMU”: <b>S</b>ervice d’<b>A</b>ide <b>M</b>édicale <b>U</b>rgente: mobile emergency team.</p

Demographic and epidemiological characteristics of the studied population at the admission to the ICU; management, ICU length of stay and mortality.

<p>BMI: body mass index; SAPS II: simplified acute physiology score II; ICU: intensive care unit; LOS: length of stay; “SAMU”: <b>S</b>ervice d’<b>A</b>ide <b>M</b>édicale <b>U</b>rgente: mobile emergency team.</p

Characteristics of patients admitted per time variable regardless of type of the day (working days or not).

<p>BMI: body mass index; SAPS II: simplified acute physiology score II; ICU: intensive care unit; LOS: length of stay; “SAMU”: <b>S</b>ervice d’<b>A</b>ide <b>M</b>édicale <b>U</b>rgente: mobile emergency team; MV: mechanical ventilation. p = significance as compared to group admitted from 08:00 to 17:59.</p

Multivariate Cox model of factors associated with ICU mortality.

<p>Included variables in the analysis: age, sex, BMI, SAPS II, nutritional status, admission source, hospital admission category, reason for admission, life support treatments.</p

Comparison of patients admitted during on-hours and off-hours.

<p>BMI: body mass index; SAPS II: simplified acute physiology score II; ICU: intensive care unit; LOS: length of stay; “SAMU”: <b>S</b>ervice d’<b>A</b>ide <b>M</b>édicale <b>U</b>rgente: mobile emergency team.</p