Table IV.

Multivariate regressions of behavior adoption with variables of the HBM.

A. Intention to be Vaccinated	OR (95% CI)	p-value	AIC 310.8
Intercept (OR0)	0.35 (0.18, 0.69)	0.0026
How effective do you think a vaccine is in protecting you from catching the swine flu? (Perceived Benefits) (ORben)
Very ineffective, Ineffective or Moderately neffective	1.0
Effective or Very effective	1.9 (1.1, 3.2)	0.033*
How concerned are you about potential side effects of a vaccine? (Perceived Barriers) (ORbar)
Not concerned	1.0
Indifferent or Concerned	0.27 (0.15, 0.48)	6.5 * 10−6*
If you were to catch the swine flu, what do you think the level of hardship would be relative to a regular cold or flu? (Perceived Severity) (ORsev)
Not as bad or About the same	1.0
Worse or Much worse	2.7 (1.5, 5.0)	0.0013*
How likely do you think you are to contract the swine flu? (Perceived Susceptibility) (ORsus)
Very unlikely or Unlikely	1.0
Moderately likely, Likely, or Very likely	1.3 (0.71, 2.3)	0.40

B. Avoids crowded places – Moderately often, Frequently, or Very frequently (vs. Very infrequently or Infrequently)	OR (95% CI)	p-value	AIC 363.83
Intercept (OR0)	0.28 (0.12, 0.67)	0.0040
Avoiding crowded places reduces my likelihood of contracting the swine flu. (Perceived Benefits) (ORben)
Strongly disagree, Disagree, or  Neutral	1.0
Agree or Strongly agree	3.8 (2.2, 6.8)	3.5 * 10−6*
It is difficult to avoid crowded environments? (Perceived Barriers) (ORbar)
Strongly disagree or Disagree	1.0
Neutral, Agree, or Strongly agree	0.74 (0.33, 1.7)	0.46
If you were to catch the swine flu, how likely would you be to die as a result? (Perceived Severity) (ORsev)
Very unlikely or Unlikely	1.0
Moderately likely, Likely, or Very likely	1.7 (0.93, 3.1)	0.084
How likely do you think you are to contract the swine flu? (Perceived Susceptibility) (ORsus)
Very unlikely or Unlikely	1.0
Moderately likely, Likely, or Very likely	1.3 (0.76, 2.3)	0.33

^*p ≤ 0.05