Tutorial in Biostatistics: Analyzing Associations between Total Plasma Homocysteine and B Vitamins Using Optimal Categorization and Segmented Regression
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منابع مشابه
Tutorial in biostatistics: Analyzing associations between total plasma homocysteine and B vitamins using optimal categorization and segmented regression.
Data analysts consider standard regression models (e.g., generalized linear model) or nonparametric smoothing techniques (e.g., loess or splines) when examining the association between two variables. Before this step, a quantile-based summarization is typically used for exploring the exposure-response relationship. Unfortunately, these exploratory approaches may not be optimal or efficient for ...
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B vitamins may correlate with Parkinson's disease (PD) through regulating homocysteine level. However, there is no comprehensive assessment on the associations between PD and B vitamins. The present study was designed to perform a meta-analytic assessment of the associations between folate, vitamin B6, and vitamin B12 and PD, including the status of B vitamins in PD patients compared with contr...
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Nutrition is one of the most important modifiable factors involved in the development and maintenance of good bone health. Calcium and Vitamin D have confirmed and established roles in the maintenance of proper bone health. However, other nutritional factors could also be implicated. This review will explore the emerging evidence of the supporting role of certain B Vitamins as modifiable factor...
متن کاملNormal Range of Total Plasma Homocysteine Concentrations in Southern Iran
The distribution of total plasma homocysteine concentrations in relation to the sex and age is described, in a population of Shiraz, South West of Iran and compared to those reported in other populations. Two hundred and one healthy males and 201 healthy females aged >15 y were randomly selected. Total Plasma homocysteine concentrations were measured using high performance liquid chromatograp...
متن کاملPlasma homocysteine and B vitamins levels in Nigerian children with nephrotic syndrome
INTRODUCTION Available data on plasma homocysteine level in patients with nephrotic syndrome (NS) are controversial with increased, decreased and unchanged values reported. Therefore, plasma homocysteine and serum B vitamins in Nigerian children with NS were assessed in this study. METHODS Fasting blood samples were analysed for plasma homocysteine, serum folate and B vitamins in 42 children ...
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ژورنال
عنوان ژورنال: Neuroepidemiology
سال: 2006
ISSN: 0251-5350,1423-0208
DOI: 10.1159/000096149