This is the protocol for an updated Campbell systematic review. The objectives are as follows: To evaluate the effect of behavioral interventions on smoking cessation among homeless individuals.

OBJECTIVE: In this review, we assess and summarize evidence and gaps in the literature regarding diabetes education in mainland China. METHODS: Using China/Chinese, diabetes and education as key words, articles were obtained from the National Science and Technology Library (NSTL), Chongqing Weipu and Qinghua Tongfang databases. Articles included in this review were further selected based on pre-determined criteria, including studying duration, outcome measurements, and inclusion of control groups. RESULTS: Based on the 34 articles, we found that studies often took place in inpatient and outpatient department. Popular methods used were class teaching, or one-on-one teaching, and knowledge and glycemic control were mostly selected as the outcome measurements. Beneficial effects of diabetes education on knowledge, and glycemic control were demonstrated in studies during a relatively short follow-up (3-6 months). Limitations to the studies selected were that the effects of interventions on behavior change, BMI, blood pressure, lipids, and medical costs were not clearly addressed, and long-term outcomes and adherence to diabetes education was unknown. CONCLUSIONS: Diabetes education had positive impact on glycemic control in mainland China in short duration. PRACTICE IMPLICATIONS: Future studies should use more creative ways of education, and the long-term impact of diabetes education should be evaluated.