Cluster Randomized Trial of Knowledge Brokering to Integrate Mood and Smoking Cessation in Ontario Primary Care

Compared to smokers who are not depressed, smokers with depression who try to quit smoking are 10% less likely to succeed when given standard treatment. A simple program with a detailed handout on relaxation exercises and a journal to record mood and urges to smoke when trying to quit has been shown to increase quit success in depressed smokers by 12 to 20%. However, it remains unclear how to best implement this knowledge into primary care settings. Through this study, the investigators will seek to answer the following questions: * Does a knowledge broker communicating via generic email reminders engage clinicians to provide patients resources for mood management more or less frequently than via interactive technology (eKB)? * Which Knowledge Translation (KT) strategy used to change clinicians\' behavior (emails vs. eKB) has the greatest effect on smoking quit rates in depressed smokers? * What is the incremental cost effectiveness of the two KT strategies?