Table 3.

Results of the multivariable logistic regression analyses predicting ILI (n = 5,404)

Determinant	OR	95%CI	P-level
Female Sex	1.30	0.95–1.77	0.099
Age	0.98	0.98–1.00	0.017
Asthma	2.33	1.46–3.73	<0.0001
Pets	1.01	0.79–1.43	0.704
Vitamin Use	1.22	0.92–1.64	0.170
Smoking	0.90	0.62–1.29	0.544
Flu Vaccination	0.99	0.68–1.47	0.995
Exercise	0.92	0.69–1.23	0.574
Negative Affectivity	1.05*	1.01–1.08	0.009
Social Inhibition	0.97*	0.94–0.99	0.011
Perceived Stress	1.03*	1.00–1.07	0.048

*odds ratio (OR) per unit increase on the psychological variables is presented.