What question did this study set out to answer?

To identify distinct body mass index (BMI) trajectories in older adults and assess their predictive utility for mortality risk compared to static BMI measures.

September 7, 2013American Journal of EpidemiologyOpen Access

Obesity and Mortality Risk: New Findings From Body Mass Index Trajectories

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Authors

HZHui ZhengNational Institutes of Health DTDmitry TuminEast Carolina University ZQZhenchao QianJohn Brown University

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Implication

Cohort study demonstrates that upward obesity trajectories increase mortality risk in older adults, highlighting the survival advantage of stable overweight status.

Key Points

To identify distinct body mass index (BMI) trajectories in older adults and assess their predictive utility for mortality risk compared to static BMI measures.
Applied latent class trajectory models to data from 9,538 adults aged 51 to 77 years in the US Health and Retirement Study (1992–2008).
Conducted survival analyses and population attributable risk modeling adjusting for baseline demographics, socioeconomic status, smoking, functional limitations, chronic illnesses, and self-rated health.
Individuals in the overweight stable trajectory experienced the highest survival rate, followed by overweight obesity, normal weight upward, class I obese upward, normal weight downward, and class II/III obese upward trajectories.
Dynamic BMI trajectories demonstrated greater predictive power for mortality risk than static, single-point BMI classifications.
Class I and class II/III upward obesity trajectories accounted for approximately 7.2% of deaths occurring after age 51 in the 1931–1941 birth cohort.

Cite This Study

Zheng et al. (2013) studied this question.

synapsesocial.com/papers/6a71ee1afe4101aa97e0b755 https://doi.org/10.1093/aje/kwt179

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Implication

Cohort study demonstrates that upward obesity trajectories increase mortality risk in older adults, highlighting the survival advantage of stable overweight status.

Obesity and Mortality Risk: New Findings From Body Mass Index Trajectories

Discussion

Member takes

Implication

Key Points

Cite This Study

Obesity and Mortality Risk: New Findings From Body Mass Index Trajectories

Discussion

Member takes

Implication

Key Points

Cite This Study

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