Obesity

Association of Body Weight Time in Target Range With the Risk of Kidney Outcomes in Patients With Overweight/Obesity and Type 2 Diabetes Mellitus

Diabetes CarePublished Secondary analysis of the Look AHEAD randomised trial

Authors' conclusion

A higher body weight TTR, with a weight loss target of losing ≥7% of initial weight, was associated with a lower risk of kidney outcomes in participants with overweight/obesity and T2DM.

Study context

Population
Participants with overweight/obesity and T2D with baseline estimated glomerular filtration rate (eGFR) ≥60 mL/min/1.73 m², Look AHEAD trial435 composite kidney outcome cases
Participants
3,601 participants
Comparison
Body weight time in target range (TTR) categories during first 4 years
Primary endpoint
Composite kidney outcome:
  • eGFR decline ≥30% from baseline and to <60 mL/min/1.73 m² at follow-up visit
  • End-stage kidney disease
Follow-up
Median 8.0 years

Primary result

As reported in the abstract

Composite kidney outcome
Adjusted hazard ratio (95% CI)
Per SD increment in body weight TTRinverse association
0.81(0.70–0.93)
TTR >0% to <29.9%vs TTR 0%
0.73(0.54–1.00)
TTR 29.9% to <69.7%vs TTR 0%
0.71(0.52–0.99)
TTR 69.7% to <100%vs TTR 0%
0.54(0.36–0.80)

Secondary outcomes

Similar results found for doubling of urine albumin to creatinine ratio

Original publication

Association of Body Weight Time in Target Range With the Risk of Kidney Outcomes in Patients With Overweight/Obesity and Type 2 Diabetes Mellitus. Diabetes Care. Published 11 December 2023. doi:10.2337/dc23-1727

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