Factors associated with the uptake of A (H1N1) influenza vaccine in multivariate logistic regression model.

OR denotes odds ratio; CI denotes confidence interval.*Other variables in the model included age, education attainment, marital status, employment status, and anxiety about adverse effects of A (H1N1) influenza vaccine.†Exchange rate: US$ 1 = ¥90.‡Underlying diseases included chronic respiratory diseases, chronic metabolic diseases, chronic heart diseases, liver diseases, kidney diseases, and immunodeficiency diseases.§High-risk groups included people with an underlying disease, pregnant women, children age five years or younger, and elderly people aged 65 years or older.