How Follow-Up Period in Prospective Cohort Studies Affects Relationship Between Baseline Serum 25(OH)D Concentration and Risk of Stroke and Major Cardiovascular Events DOI Open Access
William B. Grant, Barbara J. Boucher

Nutrients, Год журнала: 2024, Номер 16(21), С. 3759 - 3759

Опубликована: Ноя. 1, 2024

Prospective cohort studies are useful for studying how biomolecular status affects risk of adverse health outcomes. Less well known is that the longer follow-up time, lower association (or "apparent effect") due to "regression dilution". Here, we evaluate interval from baseline "event" relationship between serum 25-hydroxyvitamin D [25(OH)D] concentration and later incidence stroke major cardiovascular events (MACEs).

Язык: Английский

How follow-up period in prospective cohort studies affects the relationship between baseline fish consumption and risk of Alzheimer's disease and dementia DOI Creative Commons
William B. Grant

Journal of Alzheimer s Disease Reports, Год журнала: 2025, Номер 9

Опубликована: Янв. 1, 2025

Background Diet plays an important role in the risk of Alzheimer's disease (AD) and dementia. Adherence to Mediterranean diet is regarded as one way reduce risk. Fish a component diet. Participant variables change with time, resulting “regression dilution”. Objective The objective investigate follow-up period after measurement dietary fish intake AD Methods A recent meta-analysis prospective cohort studies used examine this effect for incidence dementia AD. Results For seven mean periods from ten years, regression fit data relative (RR) = 0.19 + (0.087 × Follow up [years], r 0.84, adjusted 2 0.66, p 0.009). However, when age participants was added analysis, became non-significant. five 3.9 9.8 RR 0.11 (0.095 follow [years]), 0.93, 0.87, 0.02). shortest are 40% greater than standard suggests 70% Conclusions Prospective health outcomes should reassess every few years. Meta-analyses consider during up.

Язык: Английский

Процитировано

0

How Follow-Up Period in Prospective Cohort Studies Affects Relationship Between Baseline Serum 25(OH)D Concentration and Risk of Stroke and Major Cardiovascular Events DOI Open Access
William B. Grant, Barbara J. Boucher

Nutrients, Год журнала: 2024, Номер 16(21), С. 3759 - 3759

Опубликована: Ноя. 1, 2024

Prospective cohort studies are useful for studying how biomolecular status affects risk of adverse health outcomes. Less well known is that the longer follow-up time, lower association (or "apparent effect") due to "regression dilution". Here, we evaluate interval from baseline "event" relationship between serum 25-hydroxyvitamin D [25(OH)D] concentration and later incidence stroke major cardiovascular events (MACEs).

Язык: Английский

Процитировано

3