Table 5.
The immune protection at week 12 against vaccine B (B/Malaysia/2506/2004-like virus)/(A/Wisconsin/67/2005(H3N2)-like virus)/A (A/New Caledonia/20/99 (H1N1)-like virus) by Hemagglutination Inhibition (HAI) test between 55 caregivers and 61 controls
| Caregiver (n = 55) | Control (n = 61) | Total (n = 116) | |||
|---|---|---|---|---|---|
| p valuec = 0.345 | p valuec = 0.453 | p valuec = 0.820 | |||
| Decline protectiona against influenza B (B/Malaysia/2506/2004-like virus) | |||||
| Responder | 8 (15 %) | 12 (20 %) | 20 (17 %) | ||
| Non-responder | 7 (13 %) | 5 (8 %) | 12 (10 % | ||
| 18 (33 %) | 25 (41 %) | 43 (37 %) | |||
| Decline protectiona against influenza A (A/Wisconsin/67/2005(H3N2)-like virus) | |||||
| Responder | 9 (16 %) | 16 (26 %) | 25 (22 %) | ||
| Non-responder | 5 (9 %) | 7 (11 %) | 12 (10 %) | ||
| 25 (46 %) | 33 (54 %) | 58 (50 %) | |||
| Decline protectiona against influenza A (A/New Caledonia/20/99 (H1N1)-like virus) | |||||
| Responder | 6 (11 %) | 13 (21 %) | 19 (16 %) | ||
| Non-responder | 7 (13 %) | 4 (7 %) | 11 (9 %) | ||
| 23 (42 %) | 29 (48 %) | 52 (45 %) | |||
aDecline protection is defined as HAI titer at 12 weeks < HAI titer at 6 weeks
bPersist protection is defined as HAI titer at 12 weeks ≥ HAI titer at 6 weeks
cLogistic regression of immune protection against influenza vaccine is associated with caregiver/control group