| |
Cases
|
Controls
|
Unadjusted
|
Adjusted
|
|---|
| |
N
|
N
|
VE, %
|
95% CI
|
VE, %
|
95% CI
|
|---|
|
All strains
|
208
|
271
|
35.8
|
4.5, 56.8
|
33.2a
|
−6.7, 58.2
|
|
Influenza A
|
86
|
110
|
48.5
|
1.4, 73.1
|
42.2b
|
−24.2, 73.1
|
|
A/H1N1
|
55
|
68
|
57.8
|
2.7, 81.7
|
68.7c
|
6.4, 89.5
|
|
A/H3N2
|
13
|
18
|
38.2
|
−599.5, 94.5
|
–
|
–
|
|
Influenza B
|
122
|
161
|
26.2
|
−22.2, 55.4
|
25.4d
|
−35.4, 58.9
|
|
B/Victoria
|
37
|
48
|
25.6
|
−82.8, 69.7
|
9.7e
|
−161.6, 68.9
|
|
B/Yamagata
|
53
|
70
|
16.6
|
−81.1, 61.6
|
36.9f
|
−72.5, 76.9
|
-
N number of patients, CI Confidence Interval, TIV trivalent influenza vaccine, VE vaccine effectiveness
- Covariate (p-value in model):
-
a Influenza vaccination (0.092), age (0.018), anti-viral use before admission (0.881), seniors including patient living in dwelling (0.020), pregnancy (0.045);
-
b Influenza vaccination (0.160), age (0.192), anti-viral use before admission (0.874) seniors including patient living in dwelling (0.188), pregnancy (0.991);
-
c Influenza vaccination (0.038), age (0.173), anti-viral use before admission (0.895) seniors including patient living in dwelling (0.201), pregnancy (0.994);
-
d Influenza vaccination (0.335), age (0.045), seniors including patient living in dwelling (0.046), pregnancy (0.099);
-
e Influenza vaccination (0.850), age (0.054), seniors including patient living in dwelling (0.888), pregnancy (0.996);
-
f Influenza vaccination (0.370), age (0.783), seniors including patient living in dwelling (0.037), pregnancy (0.740)
