摘要：We will also use a narrative summary. The narrative summary will include the following: A description of the types of interventions in the included studies with any details available about their implementation (some of this may be taken from rigorous qualitative companion studies which will be analyzed thematically). A description of the outcomes measured in the included studies and what might be perceived as obvious omissions. Any context details for the included studies that are available in the quantitative or rigorous qualitative literature or made available by contacting the study authors (e.g. school geographic location, socioeconomic or ethnicity details for the school or region, transportation options, potentially relevant details about broader social, political, climatic and geographic conditions etc). A review of findings divided by outcome and, where possible, reported by age, grade, gender, student body by ethnicity and socioeconomic status, and the existence of other school‐ or community‐based interventions. We will approach the authors of included studies requesting these data if they are indicated but not available in the published articles or reports. A description of any adverse outcomes or potential harms found. Perceived strengths, weaknesses and contributions of each included study with specific emphasis on how it supports or detracts from health equity. Any mention of financial costs associated with later start interventions (this will not be a complete cost‐benefit analysis). As cautioned in Deeks 2008 , we will aim to avoid introducing bias into the narrative synthesis by reporting the results of each study judiciously and make efforts to avoid inappropriate emphasis on the findings of any one particular study.
