Does gender influences outcome of stroke in COVID+ and COVID- patients: a large collaborative study in Northern Italy

ABSTRACT

Background and aims: The impact of the COVID-19 pandemic during the first wave in Italy caused a decrease of hospital admissions, delays in reperfusion treatments and an overall worse outcome in COVID+ patients with stroke. However, few data are available on outcome of stroke stratified by gender. Methods: A multi-center observational study on neurological complications in COVID-19 patients was conducted in 19 Neurology Units by the Italian society of Hospital Neuroscience (SNO). Adult patients admitted to Neurological units between March-April 2020 with ischaemic stroke were recruited. Demographic, clinical, treatment and outcome data were compared in patients with (COVID19+) and without COVID-19 (COVID19-), as well as in male and female patients. Results: 812 patients with ischemic stroke were enrolled (682 COVID-, 129 COVID+);males were 54.1% and 52.7%. Intra-hospital mortality was 31.9% in COVID+ patients (38.6% in male and 27.8% in female) and 7.2% in COVID- (8.4% in males and 6% in females). Male patients with COVID+ were more likely to have cPAP (30.9% vs 14.8%;p=0.03) or being intubated (14.9% vs 3.3%;p=0.02) than females. Reperfusion treatment was administered more frequently in women if COVID- (34.5% vs 29.8%), while less frequently if COVID+ (11.5% vs 29.4%;p=0.01). COVID+ patients had a higher frequency of ESUS than COVID- (31.8% vs 22.3%;p=0.02), with a higher frequency in COVID+ females compared to males (36.1% vs 27.9%). Conclusion: Our study detected some differences due to gender in ischaemic stroke with and without COVID-19. Multivariate analyses is ongoing to define predictors of mortality across gender categories.