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. 2013 Nov 18;8(11):e81200. doi: 10.1371/journal.pone.0081200

Table 2. Influenza vaccination coverage of healthcare workers according to knowledge and attitudes on influenza vaccination, Spain 2011-2012.

Vaccinated/N (%) Crude OR (95% CI) P value Adjusted OR (95% CI) P value
What strain does the influenza vaccine contain?
A 83/156 (53.2) 1 1
B 29/68 (42.6) 0.65 (0.37 - 1.16) 0.15 0.60 (0.33 - 1.09) a 0.09
C 6/9 (66.7) 1.76 (0.42 - 7.29) 0.44 2.03 (0.47 - 8.61) a 0.34
A and B 663/1300 (51) 0.91 (0.66 - 1.28) 0.60 0.93 (0.66 - 1.31) a 0.69
No response 105/216 (48.6) 0.83 (0.55 - 1.26) 0.38 0.90 (0.59 - 1.37) a 0.62
What strains are responsible for epidemics?
A 110/216 (50.9) 1 1
B 57/120 (47.5) 0.87 (0.56 - 1.36) 0.55 0.92 (0.58 - 1.46) b 0.73
C 4/7 (57.1) 1.28 (0.28 - 5.88) 0.75 1.41 (0.30 - 6.67) b 0.66
A and B 624/1206 (51.7) 1.03 (0.77 - 1.38) 0.82 1.08 (0.80 - 1.45) b 0.63
No response 91/200 (45.5) 0.80 (0.55 - 1.18) 0.27 0.92 (0.61 - 1.37) b 0.68
Influenza has an incubation period of 10 -14 days
No 414/780(53.1) 1 1
Yes 405/845 (47.9) 0.81 (0.67 - 0.99) 0.04 0.86 (0.71 - 1.06) a 0.16
No response 67/124 (54) 1.04 (0.71 - 1.52) 0.84 1.16 (0.79 - 1.71) a 0.46
Influenza is not transmitted by contact
No 553/1082 (51.1) 1 1
Yes 295/593 (49.7) 0.95 (0.77 - 1.16) 0.59 0.92 (0.75 - 1.13) a 0.42
No response 38/74 (51.4) 1.01 (0.63 - 1.62) 0.97 0.96 (0.59 - 1.57) a 0.89
I recommend the vaccine to pregnant women in their first trimester
No 348/737 (47.2) 1 1
Yes 289/506 (57.1) 1.49 (1.18 - 1.87) 0.001 1.45 (1.15 - 1.84) c 0.002
I recommend the vaccine to pregnant women in their second or third trimester
No 96/227 (42.2) 1 1
Yes 564/1053 (53.6) 1.57 (1.18 - 2.10) 0.002 1.70 (1.26 - 2.29) a 0.001
I recommend the vaccine to post partum women
No 263/553 (47.6) 1 1
Yes 322/581 (55.4) 1.37 (1.08 - 1.73) 0.01 1.34 (1.05 - 1.71) d 0.02
I recommend the vaccine to persons aged ≥ 65 years
No 4/19 (21.1) 1 1
Yes 792/1570 (50.4) 3.82(1.26 - 11.55) 0.02 4.99(1.56 - 15.91) e 0.007
I recommend the vaccine to people with chronic disorders
No 7/16 (43.8) 1 1
Yes 861/1691 (50.9) 1.33 (0.49 - 3.60) 0.57 1.90 (0.67 - 5.34) a 0.22
I recommend the vaccine to immunosuppressed people
No 47/107 (43.9) 1 1
Yes 784/1521 (51.5) 1.36 (0.91 - 2.01) 0.13 1.38 (0.92 - 2.06) b 0.12
Any specific training in the influenza in the last five years
No 541/1101 (49.1) 1 1
Yes 345/648 (53.2) 1.18 (0.97 - 1.43) 0.10 1.07 (0.87 - 1.30) a 0.53

a Adjusted for the following variables: Age, Sex, Professional category, Cohabitation with person with chronic disease, Cohabitation with person aged ≥ 65 years

b Adjusted for the following variables: Age, Sex, Professional category, Influenza has an incubation period of 10 -14 days? Cohabitation with person with chronic disease, Cohabitation with person aged ≥ 65 years

c Adjusted for the following variables: Age, Sex, Cohabitation with person with chronic disease, Cohabitation with person aged ≥ 65 years, What strain does the influenza virus contain?, What strains are responsible for epidemics?

d Adjusted for the following variables: Age, Sex, Cohabitation with person with chronic disease, Cohabitation with person aged ≥ 65 years, What strain does the influenza virus contain?, What strains are responsible for epidemics? , Influenza has an incubation period of 10 -14 days?

e Adjusted for the following variables: Age, Sex, Cohabitation with person with chronic disease, Cohabitation with person aged ≥ 65 years, Influenza is transmitted by respiratory aerosols