Hooked on Evidence is APTA's "grassroots" effort to develop a database containing current research evidence on the effectiveness of physical therapy interventions. The Hooked on Evidence project was motivated by a concern that clinicians lacked access to the knowledge available from current research, thus hindering evidence-based practice.
Hooked on Evidence does not restrict itself to the inclusion of randomized controlled trials. Hooked on Evidence includes clinical trials, cohort studies, case-control studies, case reports, single-subject experimental designs and cross-sectional studies. For definitions of the studies used in Hooked on Evidence please click here.
The measures of treatment effectiveness displayed by Hooked on Evidence depend if the outcome is continuous or dichotomous. The measures are calculated by Hooked on Evidence using available data from the original article. Measures of treatment effect size for continuous outcomes are the Absolute Mean Difference and the Standardized Mean Difference. Measures of treatment effect size for dichotomous outcomes are the Odds Ratio, Risk Ratio, and the Number Needed to Treat. For definitions of these measures of treatment effectiveness please click here.