The relationship between demographic and other characteristics of the nursing respondents and their willingness to accept vaccination were analyzed further using forced entry logistic regressions (Table 3) . Having seasonal vaccination in the past 12 months was significantly independently associated with the willingness to accept influenza A (H1N1) vaccination (OR = 4.03; 95% IC: 2.03-7.98). Washing hands before and between patient contact, however, was negatively independently associated with willingness to accept influenza A (H1N1) vaccination (OR = 0.49; 95% IC: 0.23-1.06). To confirm the results, we have also conducted backward logistic regression and the results also indicated that having seasonal vaccination in the past 12 months was significantly associated with the willingness to accept influenza A (H1N1) vaccination (OR = 3.56, 95% CI: 1.87-6.80, p < 0.001).