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 9 Comparison of geometric mean titer values between patients aged 65 to 79 years and ≥80 years according to the influenza A virus subtype and the influenza B virus lineage.
| Virus type | Aged 65–79* | Aged 80+* | Significance (p-value)** | ||
|---|---|---|---|---|---|
| Number | GMT | Number | GMT | ||
| A/Victoria/2570/2019(H1N1) pdm09 | 80 | 40.3 | 72 | 30.5 | NS |
| A/Cambodia/e0826360/2020(H3N2) | 133 | 105.5 | 113 | 117.7 | NS |
| B/Washington/02/2019 (B/Victoria lineage) | 132 | 41.7 | 115 | 47.4 | NS |
| B/Phuket/3073/2013 (B/Yamagata lineage) | 136 | 58.6 | 116 | 65.7 | NS |
| * We take into account people with non-zero antibody titers; ** Mann-Whitney test. NS – not significant. | |||||