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20 May 2022: Clinical Research

Importance of Influenza Anti-Hemagglutinin Antibodies During the SARS-CoV-2 Pandemic in the 2019/2020 Epidemic Season in Poland

Lidia B. Brydak 1ADEFG , Karol Szymański 1BF , Katarzyna Kondratiuk 1BF , Anna Poznańska 2CDE , Adam Kolondra 1B , Ewelina Hallmann 1BDEF*

DOI: 10.12659/MSM.936495

Med Sci Monit 2022; 28:e936495

Table 1 The most important characteristics of the studied influenza.

Qualitative variablesNumber of cases N=934Percent*
 No data50.5%
 Kujawsko-pomorskie (Kuyaawian-Pomeriania)778.2%
 Mazowieckie (Mazovia)29731.8%
 Łódzkie (Lodz)747.9%
 Wielkopolskie (Grather Poland)10210.9%
 Dolnośląskie (Lower Silesian)262.8%
 Śląskie (Silesian)10511.2%
 Podlaskie (Podlasie)22323.9%
 Zachodnio-pomorskie (Western Pomeranian)303.2%
Influenza vaccination 2019/20
 No data222.4%
Previous influenza vaccination
 No data60.6
Chronic diseases
 No data60.6%
Hospitalization due to COVID-19
 No data40.4%
Subjective assessment of the COVID-19 course
 Extremely severe20.2
 No data20.2
Qualitative variableRange, average value±standard error of the meanQuartiles
Age18–64 years, 37.6 ±0.3 year29/37/45 years
No data20.2%
* Percentages may not add up to 100% due to rounding.

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750