Table 2

Data extraction criteria

Data categorySpecific extraction
Study detailsAuthor; title
Source attributesStudy type; funding details; year of distribution
Methodological featuresGroup assignment; allocation concealment; comparator group; blinding; attrition; intention to treat; study period; outcome measurement
Participant characteristicsAge; gender; ethnicity; diagnosis
Intervention featuresNumber of sessions; interventionist; length of delivery; theoretical basis; delivery method; targeting additional health behaviours
Intervention contentBCTs
Effect size determinationsSample size; methods of analysis; means; main effects
  • BCTs,┬ábehaviour change technique.