• Rebecca Rachael Lee, Amir Rashid, Daniela Ghio, Wendy Thomson, and Lis Cordingley.
• NIHR Manchester Biomedical Research Centre, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, University of Manchester, Manchester M13 9PT, UK.
• Pain Res Manag. 2017 Jan 1; 2017: 76037587603758.

BackgroundAdvances in pain assessment approaches now indicate which measures should be used to capture chronic pain experiences in children and adolescents. However, there is little guidance on how these tools should best be administered and reported, such as which time frames to use or how pain scores are categorised as mild, moderate, or severe.ObjectiveTo synthesise current evidence on unidimensional, single-item pain intensity scale selection, administration, interpretation, and reporting.MethodsDatabases were searched (inception: 18 January 2016) for studies in which unidimensional pain intensity assessments were used with children and adolescents with chronic pain. Ten quality criteria were developed by modifying existing recommendations to evaluate the quality of administration of pain scales most commonly used with children.ResultsForty-six studies met the inclusion criteria. The highest score achieved was 7 out of a possible 10 (median: 5; IQR: 4-6). Usage of scales varied markedly in administrator/completer, highest anchors, number of successive assessments, and time referent periods used.ConclusionsFindings suggest these scales are selected, administered, and interpreted inconsistently, even in studies of the same type. Furthermore, methods of administration are rarely reported or justified making it impossible to compare findings across studies. This article concludes by recommending criteria for the future reporting of paediatric chronic pain assessments in studies.

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