BACKGROUND: Bodyweight loss is associated with type 2 diabetes remission
however, the quantitative relationship between the degree of bodyweight loss and the likelihood of remission, after controlling for confounding factors, remains unknown. We aimed to analyse the relationship between the degree of bodyweight loss and diabetes remission after controlling for various confounding factors, and to provide estimates for the effect sizes of these factors on diabetes remission. METHODS: This systematic review and meta-regression analysis followed Cochrane and PRISMA guidelines to systematically review, synthesise, and report global evidence from randomised controlled trials done in individuals with type 2 diabetes and overweight or obesity. The outcome was the proportion of participants with complete diabetes remission (HbA FINDINGS: We identified 22 relevant publications, encompassing 29 outcome measures of complete diabetes remission and 33 outcome measures of partial remission. The pooled mean proportion of participants with complete remission 1 year after the intervention was 0·7% (95% CI 0·1-4·6) in those with bodyweight loss less than 10%, 49·6% (40·4-58·9) in those with bodyweight loss of 20-29%, and 79·1% (68·6-88·1) in those with bodyweight loss of 30% or greater
no studies reported on complete remission with 10-19% bodyweight loss. The pooled mean proportion of participants with partial remission 1 year after the intervention was 5·4% (95% CI 2·9-8·4) in those with bodyweight loss less than 10%, 48·4% (36·1-60·8) in those with 10-19% bodyweight loss, 69·3% (55·8-81·3) in those with bodyweight loss of 20-29%, and 89·5% (80·0-96·6) in those with bodyweight loss of 30% or greater. There was a strong positive association between bodyweight loss and remission. For every 1 percentage point decrease in bodyweight, the probability of reaching complete remission increased by 2·17 percentage points (95% CI 1·94-2·40) and the probability of reaching partial remission increased by 2·74 percentage points (2·48-3·00). No significant or appreciable associations were observed between age, sex, race, diabetes duration, baseline BMI, HbA INTERPRETATION: A robust dose-response relationship between bodyweight loss and diabetes remission was observed, independent of age, diabetes duration, HbA FUNDING: Biomedical Research Program at Weill Cornell Medicine-Qatar and the Qatar National Research Fund (a member of Qatar Foundation).