Revisiting the associations between cooking oils and survival among older people in China: A nationwide, community-based, prospective cohort study

Kexin Wang, Chao Ban, Liming Zhao, Haiyan Ruan, Ziqiong Wang, Yi Zheng and Sen He

PLOS ONE, 2026, vol. 21, issue 3, 1-15

Abstract: Background: The study aimed to investigate the associations between cooking oils and survival outcomes in a nationwide, community-based, prospective cohort study of older adults in China. Methods: A total of 5372 older participants (median age: 85.0, inter-quartile range [IQR] age: 77.0–93.0; male: 46.1%) from the 2014 wave of the Chinese Longitudinal Healthy Longevity Survey (CLHLS) in 2014 were included, with follow-up until 2018. The exposure was cooking oils, including vegetable oils and lard, and outcomes were overall survival (OS) and disease-specific survival (i.e., cardiovascular disease [CVD]-specific survival and non-CVD-specific survival). Accelerated failure time (AFT) models were used to analyze the associations between cooking oils and study outcomes. Results: During a median follow-up of 3.5 years (IQR: 2.4–4.2 years), 2064 (38.4%) deaths were recorded, including 433 CVD deaths, 1229 non-CVD deaths, and 402 deaths with unknown causes. Kaplan-Meier analysis revealed cooking with lard was associated a higher CVD-specific survival probability than vegetable oils (93.9% vs. 88.2%, log-rank p

Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0344282

DOI: 10.1371/journal.pone.0344282

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