Maternal & Child Nutrition

Famine’s links to later-life disease varied by age and sex

Compared with no reported exposure, famine exposure was linked to 20%–29% higher odds of five chronic conditions and 10% higher odds of two others.

Paper by Mengling Cheng, Nicolas Sommet, Marko Kerac, Daniela S Jopp, Dario Spini · East China University of Science and Technology
Figure 1 from Maternal & Child Nutrition
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Figure 1. Cheng et al.
Cohort study of 11,047 Chinese adults aged 45 years and older, 2011-2020Populations

Limit: Adult-exposed participants and men were unusually robust survivors, potentially distorting age and sex differences

Edited by Boris Djordjevic · AgingResearch.News

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In an observational study of 11,047 adults aged 45 and older in China, researchers analyzed nationally representative survey data from 2011–2020. They assessed self-reported exposure to the 1959–1961 Chinese Famine and examined 14 chronic conditions.

Famine exposure was associated with 20%–29% higher odds of digestive disease, memory-related disease, arthritis, kidney disease and dyslipidemia, or abnormal blood fat levels. Heart disease and diabetes showed 10% higher odds. Exposure before birth or at ages 0–2 had the strongest links for eight conditions. Exposure at ages 3–5 had the strongest links for psychiatric and memory-related disease. Exposure in adulthood was associated with lower odds of various conditions. For abnormal blood fat levels, heart disease and stroke, associations were stronger in women than men.

Why it matters

Severe malnutrition raises questions about how early development relates to health decades later. The authors interpret the patterns as a balance between developmental harm and healthier people being more likely to survive famine.

Caveats

The observational design cannot establish cause and effect, and famine exposure was self-reported. The findings may not generalize beyond Chinese adults aged 45 and older.

From the paper

Result

… and dyslipidemia (adjusted ORs ranged from 1.20, 95% CI [1.10, 1.30] to 1.29, 95% CI [1.21, 1.37]), and a 10% higher odds of heart disease and diabetes (adjusted ORs of 1.10, 95% CI [1.02, 1.18] and 1.10, 95% CI [1.01, 1.19]), respectively.

Results, 3.1 Disease-Specific Associations Between Famine Exposure and Later-Life NCDs

Limitation

First, the assessment of NCDs relied on self-reported diagnoses rather than direct linkage to medical records (which is unavailable), which might be subject to recall bias and underreporting due to healthcare access disparities.

4.2 Limitations

Quoted word for word from the full text on onlinelibrary.wiley.com.