Reasons for not having vaccination given by the 889 respondents who did not receive pH1N1 vaccination ( Figure 5) were, most frequently 'low risk of or from swine influenza' (529/889, 60%) and 'concerns regarding adverse effects of the vaccine' (328/889, 37%). Around 11% (100/889) of the respondents reported both 'low risk of/from swine influenza' and 'concerns regarding adverse effects of the vaccine'. Table 3 For the final full structural model (Figure 6 ), two additional paths were added and estimated based on the modification indices including a path from social norms to vaccination planning and path from anticipated regret to vaccination planning while the path from perceived self-efficacy to vaccination and the path from anticipated regret to vaccination were removed, coefficients for these two paths being nonsignificant and too small to be meaningful. The final model indicated a good fit with CFI = 0.96, TLI = 0.93 and RMSEA = 0.06 ( Figure 6) .