Factors influencing the decision to comply with nurse recommendations to take or avoid influenza vaccination.

Influenza is a major cause of morbidity and mortality. Although vaccination is an efficient means of prevention, low rates of vaccination are reported periodically. The study aimed to examine factors affecting acceptance of nurses' recommendations to take or avoid influenza vaccination. Study design was quasi-experimental with a 2 × 2 between subjects design: two variables were manipulated and two were not. The research variables were expertise (of nurses and respondents), type of recommendation (to vaccinate or not) and respondents' a-priori intention to vaccinate. Data were collected from 374 respondents. The study was scenario based, differing in nurse expertise and type of recommendation. After each scenario, the respondents were requested to indicate their a-priori intention to vaccinate and to complete questionnaires on epistemic authority (EA) attributed to the nurse, and of self-epistemic authority (SEA). There is a general tendency to avoid vaccination. Intention to vaccinate correlated positively with nurse recommendations, respondent a-priori intention and nurse expertise. A significant three-way interaction between respondents' SEA, nurse recommendations and nurse expertise was found. The nurse's recommendation has the strongest effect when the nurse is an expert and the respondent perceives him/herself as having high self-EA. The results highlight the importance of patients' sense of knowledge for assuring their co-operation and compliance with medical recommendations.