Do nurses' personal health behaviours impact on their health promotion practice? A systematic review

Background: There is a growing expectation in national and international policy and from professional bodies that nurses be role models for healthy behaviours, the rationale being that there is a relationship between nurses' personal health and the adoption of healthier behaviours by patients. This may be from patients being motivated by, and modelling, the visible healthy lifestyle of the nurse or that nurses are more willing to promote the health of their patients by offering public health or health promotion advice and referring the patient to support services. Methods: An integrated systematic review was conducted to determine if nurses' personal health behaviour impacted on (1) their health promotion practices, and (2) patient responses to a health promotion message. Medline, CINAHL, SCOPUS, and PsycINFO databases were searched. A narrative synthesis was conducted. Results: 31 studies were included in the review. No consistent associations were noted between nurses' weight, alcohol use, or physical activity level and their health promotion practice, although smoking appeared to negatively impact on the likelihood of discussing and engaging in cessation counselling. Nurses who reported confidence and skills around health promotion practice were more likely to raise lifestyle issues with patients, irrespective of their own personal health behaviours. The two studies included in the review that examined patient responses noted that the perceived credibility of a public health message was not enhanced by being delivered by a nurse who reported adopting healthy behaviours. Conclusions: Although it is assumed that nurses' personal health behaviour influences their health promotion practice, there is little evidence to support this. The assertion in health care policy that nurses should be role models for healthy behaviours assumes a causal relationship between their health behaviours and the patient response and adoption of public health messages that is not borne out by the research evidence.