| All papers | Year published Year data collected Location and country Population Sample size Sociodemographic characteristics (age, sex/gender, ethnicity, other) Aim and extent of help-seeking (implicit or explicit)
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| Social capital papers | Extent of focus on social capital (explicit or incidental) Level of social capital discussed (micro, meso, macro) Types of social capital explored (focusing on bonding, bridging and linking) Theoretical orientation of the paper Summary of any theoretical argument relating social capital to help-seeking Results relevant to help-seeking
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| SNA papers | Type of method (quantitative, qualitative, mixed methods) Social network type (eg, egocentric network/personal network, whole network) Network features studied (eg, centrality, homophily) Data collection and analysis methods Findings related to help-seeking or the utility of SNA
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