Table 2. Vaccine features and antibody levels of the study population.
| Patient group (n = 776) | Control group (n = 715) | p-value | |||
|---|---|---|---|---|---|
| n | (%) | n | (%) | ||
| Antibody level, median (range) | 363.9 AU/ml (0–40,000) |
656.5 AU/ml (0.2–10,615.3) |
<0.001† | ||
|
Seropositivity Positive (≥50) Negative (<50) |
661 115 |
85.2 14.8 |
697 18 |
97.5 2.5 |
<0.001† |
|
Other vaccines Yes No |
217 559 |
28.0 72.0 |
117 598 |
16.4 83.6 |
<0.001† |
|
Type of vaccine Influenza Pneumococcal Influenza + pneumococcal |
71 59 87 |
32.7 27.2 40.1 |
48 24 45 |
41.0 20.5 38.5 |
0.236 |
†
Statistically significant results.