Table 6. Percentages of the variance explained of the vaccination-refusal and vaccination-acceptance related factors, questionnaire completed by healthcare workers at the Clinical Centre of Serbia, December 2015 (n=352).

Vaccination refusal
Factors	Eigen value	Percentage of variance explained
Threat of disease	4.563	30.417
Knowledge of disease	2.464	16.428
Social influence	1.760	11.736
Access to care	1.267	8.447
Risk denial	1.033	6.885
Total percentage of the variance explained	73.913
Vaccination acceptance
Factors	Eigen value	Percentage of variance explained
Social influence	6.178	47.521
Knowledge of disease	1.346	10.352
Threat of disease	1.027	7.897
Total percentage of the variance explained	65.770