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 3ABDEFG
DOI: 10.12659/MSM.945002
Med Sci Monit 2024; 30:e945002
Table 3 Comparison of geometric mean titer values in persons vaccinated and unvaccinated against influenza according to the subtype of influenza A virus and the influenza B virus lineage.
| Virus type | Number of vaccinated* | GMT vaccinated | Number of unvaccinated* | GMT unvaccinated | Significance** (p-value) |
|---|---|---|---|---|---|
| A/Victoria/2570/2019 (H1N1)pdm09 | 63 | 40.0 | 89 | 32.4 | NS |
| A/Cambodia/e0826360/2020(H3N2) | 75 | 145.9 | 171 | 98.4 | 0.003 |
| B/Washington/02/2019 (B/Victoria lineage) | 78 | 72.6 | 169 | 35.2 | <0.001 |
| B/Phuket/3073/2013 (B/Yamagata lineage) | 78 | 82.9 | 174 | 54.1 | 0.001 |
| * We take into account people with non-zero antibody titers; ** Mann-Whitney test. NS – not significant. | |||||