|Outcomes at 1–6 months||Number of trials (n)||Standardised effect size (95% CI)||Absolute difference (CI)|
|*Abbreviations defined in glossary. Results based on a random effects model.|
|Glycated haemoglobin||12 (522)||−0.32 (−0.57 to –0.07)||−0.76% (−1.34 to –0.18)|
|Blood glucose||8 (314)||−0.11 (−0.65 to 0.42)†||−0.20 mmol/l (−1.34 to 0.91)†|
|Body weight||9 (455)||0.37 (−0.18 to 0.93)†|
|Psychological distress||5 (197)||−0.58 (−0.95 to –0.20)|
Review: psychological interventions reduce glycated haemoglobin concentrations in type 2 diabetes
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