Mariana's research focuses on child injury prevention.
Current research interests include the influence of geographic, cultural and social places on parenting related to risk and safety; developmental importance of children’s risky play; the impact of injury on children’s health related quality of life; injuries among Aboriginal populations; and, injury surveillance.
She currently leads CIHR (Canadian Institutes of Health Research) -funded research to develop an index of the playability of the built environment; and Lawson Foundation-funded research to develop an online tool, to reframe parents’ risk perceptions with the goal of facilitating children’s access to risky play. The tool is available at OutsidePlay.ca and the randomized controlled trial to test its effectiveness is underway. Her work has been featured extensively in national and international media.