Sex-specific treatment characteristics and 30-day mortality outcomes of critically ill COVID-19 patients over 70 years of age-results from the prospective COVIP study.

Wolff, Georg; Wernly, Bernhard; Flaatten, Hans; Fjølner, Jesper; Bruno, Raphael Romano; Artigas, Antonio; Pinto, Bernardo Bollen; Schefold, Joerg C; Kelm, Malte; Binneboessel, Stephan; Baldia, Philipp; Beil, Michael; Sivri, Sigal; van Heerden, Peter Vernon; Szczeklik, Wojciech; Elhadi, Muhammed; Joannidis, Michael; Oeyen, Sandra; Flamm, Maria; Zafeiridis, Tilemachos; ... (2022). Sex-specific treatment characteristics and 30-day mortality outcomes of critically ill COVID-19 patients over 70 years of age-results from the prospective COVIP study. Canadian journal of anesthesia / Journal canadien d'anesthesie, 69(11), pp. 1390-1398. Springer-Verlag 10.1007/s12630-022-02304-2

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PURPOSE

Older critically ill patients with COVID-19 have been the most vulnerable during the ongoing pandemic, with men being more prone to hospitalization and severe disease than women. We aimed to explore sex-specific differences in treatment and outcome after intensive care unit (ICU) admission in this cohort.

METHODS

We performed a sex-specific analysis in critically ill patients ≥ 70 yr of age with COVID-19 who were included in the international prospective multicenter COVIP study. All patients were analyzed for ICU admission and treatment characteristics. We performed a multilevel adjusted regression analysis to elucidate associations of sex with 30-day mortality.

RESULTS

A total of 3,159 patients (69.8% male, 30.2% female; median age, 75 yr) were included. Male patients were significantly fitter than female patients as determined by the Clinical Frailty Scale (fit, 67% vs 54%; vulnerable, 14% vs 19%; frail, 19% vs 27%; P < 0.001). Male patients more often underwent tracheostomy (20% vs 14%; odds ratio [OR], 1.57; P < 0.001), vasopressor therapy (69% vs 62%; OR, 1.25; P = 0.02), and renal replacement therapy (17% vs 11%; OR, 1.96; P < 0.001). There was no difference in mechanical ventilation, life-sustaining treatment limitations, and crude 30-day mortality (50% male vs 49% female; OR, 1.11; P = 0.19), which remained true after adjustment for disease severity, frailty, age and treatment limitations (OR, 1.17; 95% confidence interval, 0.94 to 1.45; P = 0.16).

CONCLUSION

In this analysis of sex-specific treatment characteristics and 30-day mortality outcomes of critically ill patients with COVID-19 ≥ 70 yr of age, we found more tracheostomy and renal replacement therapy in male vs female patients, but no significant association of patient sex with 30-day mortality.

STUDY REGISTRATION

www.

CLINICALTRIALS

gov (NCT04321265); registered 25 March 2020).

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