The model showed that respondents perceiving greater pH1N1vaccination benefits (b = 0.15), less concerns regarding vaccine adverse effects (b = 20.20), greater sensitivity to social norms b = 0.39), higher anticipated regret if not vaccinated (b = 0.47), higher perceived self-efficacy in taking pH1N1 vaccination (b = 0.12) and receiving seasonal influenza vaccination in the past three years (b = 0.12) reported greater intention to take pH1N1 vaccination, and accounted for 59% of variance in vaccination intention scores. Greater adherence to social norms (b = 0.70), higher vaccination intention (b = 0.31) and higher anticipated regret (b = 0.19) were associated with more vaccination planning, together accounting for 67% of variance in vaccination planning. Both vaccination intention (b = 0.30) and vaccination planning (b = 0.36) significantly predicted actual pH1N1 vaccination, accounting for 36% of variance in pH1N1 vaccination ( Figure 6 ). 