Sex |
|
|
Female |
79/665 (11.9) |
0.37 (0.23-0.60) |
Male |
29/108 (26.9) |
|
Nursing practice |
|
|
Enrolled nurse |
14/125 (11.2) |
0.76 (0.42-1.38) |
Registered Nurse |
92/646 (14.2) |
|
Seasonal flu vaccination in the preceding year |
|
Yes |
72/313 (23.0) |
3.73 (2.43-5.73) |
No |
35/485 (7.4) |
|
Seasonal flu vaccination in the coming season |
|
Yes |
89/302 (29.5) |
26.91 (10.75-67.34) |
No |
5/327 (1.5) |
|
Factors considered most important for H1N1 vaccination |
Global risk of H1N1 |
|
|
Yes |
15/91 (16.5) |
1.31 (0.71-2.41) |
No |
66/504 (13.1) |
|
Hong Kong risk of H1N1 |
|
Yes |
20/129 (15.5) |
1.20 (0.70-2.05) |
No |
70/526 (13.3) |
|
Effectiveness of H1N1 vaccine |
|
Yes |
50/360 (13.9) |
0.99 (0.65-1.49) |
No |
55/391 (14.1) |
|
Schedule of vaccine with repeated dosing |
|
|
Yes |
8/51 (15.7) |
1.23 (0.55-2.74) |
No |
63/480 (13.1) |
|
Side effects of vaccine |
|
|
Yes |
33/293 (11.3) |
0.68 (0.44-1.07) |
No |
70/447 (15.7) |
|
Severity of illness caused by H1N1 |
|
Yes |
29/198 (14.6) |
1.23 (0.76-1.98) |
No |
59/481 (12.3) |
|
Need for separate vaccination against H1N1 and seasonal influenza vaccines |
Yes |
7/29 (24.1) |
2.23 (0.91-5.46) |
No |
54/432 (12.5) |
|
Professional advice |
|
|
Yes |
12/62 (19.4) |
1.71 (0.86-3.39) |
No |
61/495 (12.3) |
|
Government and hospital guidelines |
|
|
Yes |
13/46 (28.3) |
2.73 (1.36-5.49) |
No |
59/468 (12.6) |
|
Previous exposure to H1N1 |
|
|
Contact with H1N1 patients at work |
|
|
Yes |
25/184 (13.7) |
1.03 (0.63-1.67) |
No |
78/584 (13.4) |
|
Been in a workplace where H1N1 patients were managed but without direct contact |
Yes |
34/226 (14.2) |
1.09 (0.75-1.90) |
No |
74/574 (12.9) |
|
Ever suspected of H1N1 infection but never confirmed |
|
Yes |
1/8 (12.5) |
0.91 (0.11-7.47) |
No |
107/789 (13.6) |
|
Ever confirmed with H1N1 infection |
|
|
Yes |
1/6 (16.7) |
1.28 (0.15-11.0) |
No |
107/791 (13.5) |
|
Never infected with H1N1 |
|
|
Yes |
106/783 (13.5) |
0.94 (0.21-4.26) |
No |
2/14 (14.3) |
|
No known friends/relatives infected with H1N1 |
|
Yes |
31/226 (13.7) |
1.06 (0.67-1.66) |
No |
71/542 (13.1) |
|
Family members in the household infected with H1N1 |
|
Yes |
4/16 (25.0) |
2.25 (0.68-7.47) |
No |
27/209 (12.9) |
|