Conclusion: The current study identifies discernible patterns of lifestyle behaviours in the Irish population which
are similar to those of our European counterparts. Healthier clusters (Former Smokers, Temperate and Healthy
Lifestyle) reported higher levels of energy vitality, lower levels of psychological distress, better self-rated health and
better quality of life. In contrast, those in the Multiple Risk Factor cluster had the lowest levels of energy and
vitality and the highest levels of psychological distress. Identification of these discernible patterns because of their
relationship with mortality, morbidity and longevity is important for identifying national and international health
behaviour patterns.