Projects per year
Abstract
BACKGROUND AND AIMS: Assessing the relationship between vitamin K1 intakes, using region-specific food databases, with both all-cause, and cardiovascular disease (CVD) mortality warrants further investigation to inform future preventative strategies. Consequently, we examined the aforementioned associations in the Perth Longitudinal Study of Ageing Women (PLSAW).
METHODS AND RESULTS: 1436 community-dwelling older Australian women (mean ± SD age 75.2 ± 2.7 years) completed a validated food frequency questionnaire at baseline (1998). Vitamin K1 intake was calculated based on an Australian vitamin K food database, supplemented with published data. All-cause and CVD mortality data was obtained from linked health records. Associations were examined using restricted cubic splines within Cox-proportional hazard models, adjusted for a range of cardiovascular and lifestyle related risk factors. Over 15 years of follow-up, 601 (41.9%) women died, with 236 deaths (16.4%) due to CVD. Compared to women with the lowest vitamin K1 intakes (Quartile 1, median 49.1 μg/day), those with the highest intakes (Quartile 4, median 119.3 μg/day) had lower relative hazards for all-cause mortality (HR 0.66 95%CI 0.51-0.86) and CVD mortality (HR 0.61 95%CI 0.41-0.92). A plateau in the inverse association was observed from vitamin K1 intakes of approximately ≥80 μg/day.
CONCLUSION: Higher vitamin K1 intakes were associated with lower risk for both all-cause and CVD mortality in community-dwelling older women, independent of CVD related risk factors. A higher intake of vitamin K1 rich foods, such as leafy green vegetables, may support cardiovascular health.
Original language | English |
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Pages (from-to) | 1189-1197 |
Number of pages | 9 |
Journal | Nutrition, Metabolism and Cardiovascular Diseases |
Volume | 34 |
Issue number | 5 |
Early online date | 15 Dec 2023 |
DOIs | |
Publication status | Published - May 2024 |
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Dive into the research topics of 'Vitamin K1 intake is associated with lower risk for all-cause and cardiovascular disease mortality in community-dwelling older Australian women'. Together they form a unique fingerprint.Projects
- 3 Finished
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Determinants of Musculoskeletal and Other Diseases, Health Service Utilisation and Mortality in a Cohort of Older Women
Zhu, K. (Investigator 01), Prince, R. (Investigator 02), Flicker, L. (Investigator 03) & Mukhtar, S. (Investigator 04)
NHMRC National Health and Medical Research Council
31/12/08 → 31/12/13
Project: Research
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Environmental and Metabolic Influences on Musculoskeletal and other Diseases in a Cohort of Elderly Women
Prince, R. (Chief Investigator), Devine, A. (Chief Investigator), Thompson, P. (Chief Investigator), Dhaliwal, S. S. (Chief Investigator) & Dick, I. (Chief Investigator)
1/01/04 → 31/12/08
Project: Research
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Extension of the Calcium Intake Fracture Outcome Study
Prince, R. (Chief Investigator), Devine, A. (Chief Investigator), Dhaliwal, S. S. (Chief Investigator) & Dick, I. (Chief Investigator)
1/01/03 → 31/12/04
Project: Research