17 September 2024 : Clinical Research
Influenza Hemagglutinin Antibody Levels in the Elderly: Impact of Sex, Age, and Influenza/COVID-19 Vaccination Status During the 2021/2022 Epidemic Season in Warsaw, Poland
Magdalena Proniewska-Sadowska 1ABCDEF*, Anna Poznańska 2C, Lidia Bernadeta Brydak 3ABDEFGDOI: 10.12659/MSM.945002
Med Sci Monit 2024; 30:e945002
Table 6 Comparison of protective levels in vaccinated and unvaccinated patients against COVID-19 according to influenza A virus subtype and influenza B virus lineage.
Virus type | Number of vaccinated | Protective level of vaccination | Number of unvaccinated | Protective level of unvaccinated | Significance* (p-value) |
---|---|---|---|---|---|
A/Victoria/2570/2019 (H1N1)pdm09 | 229 | 28.8% | 27 | 14.8% | NS (p=0.061)** |
A/Cambodia/e0826360/2020(H3N2) | 229 | 87.8% | 27 | 85.2% | NS |
B/Washington/B/Victoria lineage | 229 | 64.2% | 27 | 44.4% | p=0.023 |
B/Phuket/3073/2013 (B/Yamagata lineage) | 229 | 78.6% | 27 | 55.6% | p=0.004 |
* chi-square test or exact Fisher test (for A/Cambodia/e0826360/2020(H3N2); ** result bordering on statistical significance. NS – not significant. |