Diabetes & Metabolism Journal

Original Article

Metabolic Risk/Epidemiology
Birth Weight, Cardiovascular Health, and Microvascular Complications in Individuals with Diabetes Mellitus: Chaolun Yu, Anping Feng, Xia Zou, Siqi Chen, Lingyan Dai, Qingmei Cui, Xiaojing Kuang, Gaoli She, Ying Ma, Haixia Guan, Jie Li; Diabetes Metab J. 2025;49(5):1075-1086. Published online May 23, 2025; DOI: https://doi.org/10.4093/dmj.2024.0518

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Background
Diabetes often leads to microvascular complications, including nephropathy, neuropathy, and retinopathy. Understanding the impact of early-life factors like birth weight and modifiable behaviors such as cardiovascular health (CVH) is essential for preventing these complications.
Methods
We included 11,515 participants with diabetes but without microvascular complications at baseline from the UK Biobank Study. CVH was evaluated using the Life’s Essential 8 score. Independent and joint associations of birth weight and CVH with microvascular complications were analyzed using Cox proportional hazard models. Two-sample Mendelian randomization (MR) analyses estimated unconfounded associations between birth weight and microvascular complications.
Results
Over a median follow-up of 13.1 years, 3,010 microvascular complications occurred. Compared with normal birth weight (2.5–4.0 kg), low birth weight (LBW; <2.5 kg) was associated with 15% higher risk of diabetic nephropathy (hazard ratio [HR], 1.15; 95% confidence interval [CI], 1.01 to 1.31), but not with neuropathy and retinopathy. High birth weight (>4.0 kg) was not associated with the risk of diabetic microvascular complications. MR analysis confirmed the association between LBW and nephropathy. Adherence to high CVH was associated with a reduced risk of microvascular complications compared to low CVH, regardless of birth weight. The HRs were 0.70 (95% CI, 0.59 to 0.84) for the LBW group and 0.74 (95% CI, 0.68 to 0.80) for the group with birth weight ≥2.5 kg (P for interaction=0.69).
Conclusion
LBW was an independent risk factor for nephropathy among diabetic patients. However, the detrimental effects of LBW might be mitigated by improvement in CVH.

Citations

Citations to this article as recorded by

Predicting complications for diabetes in South Asians: Beyond convention
Beryl Lin, Lee-Ling Lim, Viswanathan Mohan, Jonathan E. Shaw
Best Practice & Research Clinical Endocrinology & Metabolism.2026; 40(4): 102119. CrossRef

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