Determinants of longevity and age at death in a practically extinct cohort of middle-aged men followed-up for 61 years
- PMID: 35032326
- DOI: 10.1007/s40520-021-02059-8
Determinants of longevity and age at death in a practically extinct cohort of middle-aged men followed-up for 61 years
Abstract
Objectives: To explore possible determinants of longevity as a function of many personal characteristics in a cohort of middle-aged men followed-up until practical extinction.
Materials and methods: In the Italian Rural Area of the Seven Countries Study, 1712 men aged 40-59 were examined in 1960 and 35 personal characteristics were measured. The subsequent follow-up for life status was of 61 years when only 3 men survived. A Kaplan-Meier curve was computed. A Cox model was solved with all-cause mortality as end-point and 35 potential determinants as covariates. A Multiple Linear Regression (MLR) model was also solved with the same covariates and age at death (AD) as end-point.
Results: After 61 years, 99.8% of men had died and median age at death was 75. Beneficial risk factors for both models (p < 0.05) were: never smoker, vigorous physical activity, prudent and Mediterranean diets, arm circumference, subscapular skinfold, and vital capacity. Adverse risk factors (p < 0.05) were: mother early death, laterality/linearity index, systolic blood pressure, serum cholesterol, corneal arcus, xanthelasma, cardiovascular diseases, cancer, diabetes, and chronic bronchitis. Some arbitrary combinations of selected risk factors were used to estimate AD as a function of coefficients of the MLR, showing large differences up to 10 years or more.
Conclusions: Several personal characteristics of anthropometric, behavioral, biophysical, biochemical, and clinical nature are strongly associated with longevity when measured in middle-aged men and then followed up until extinction.
Keywords: Follow-up until extinction; Lifestyle behavior; Longevity; Risk factors.
© 2022. The Author(s), under exclusive licence to Springer Nature Switzerland AG.
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