Prevalence figures for health-related behaviors disguise the existence of behavioral clusters. A growing body of work indicates the potential effectiveness of using simultaneous (versus sequential) approaches to targeting health-related behaviors to make deeper inroads into addressing non-communicable diseases. To inform future interventions designed to simultaneously address multiple risk factors, the aim of the present study was to identify behavioral clusters including nine behaviors relating to smoking, alcohol consumption, nutrition, physical activity, and sleep.

A latent class analysis was applied to a nationally representative sample of 1849 adult Australians.

Of the four identified segments, one was characterized by a relatively healthy behavioral profile and another demonstrated poor results across multiple lifestyle domains. The other two groups comprised individuals who demonstrated healthy behaviors in some domains (e.g., substance use) but not in others (primarily physical inactivity and junk food consumption, respectively).

Results suggest the opportunity to encourage individuals in the latter two groups to build on existing positive behaviors to achieve greater overall compliance with health recommendations. Particularly intensive interventions are likely needed for those in the unhealthiest group to address the potentially reinforcing effects of their multiple unhealthy behaviors.