John Sluyter
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View article: Vitamin D supplementation to prevent acute respiratory infections: systematic review and meta-analysis of stratified aggregate data
Vitamin D supplementation to prevent acute respiratory infections: systematic review and meta-analysis of stratified aggregate data Open
View article: Maternal Vitamin D Supplementation During Pregnancy to Prevent Acute Respiratory Infections in Offspring: Systematic Review and Meta-Analysis of Stratified Aggregate Data from Randomised Controlled Trials
Maternal Vitamin D Supplementation During Pregnancy to Prevent Acute Respiratory Infections in Offspring: Systematic Review and Meta-Analysis of Stratified Aggregate Data from Randomised Controlled Trials Open
View article: Association of arterial stiffness and eye disease: a systematic review and meta-analysis
Association of arterial stiffness and eye disease: a systematic review and meta-analysis Open
Background This systematic review and meta-analysis assesses the association of arterial stiffness with age-related macular degeneration (AMD), glaucoma, retinal vein occlusion (RVO) and retinopathy (diabetic and hypertensive). Methods Med…
View article: Positive association of oscillometrically estimated baseline arterial stiffness with incident diabetes and prediabetes: A large population-based cohort study
Positive association of oscillometrically estimated baseline arterial stiffness with incident diabetes and prediabetes: A large population-based cohort study Open
Arterial stiffness, as measured by aPWV may be a useful predictor of incident diabetes that can be utilized in clinical practice.
View article: Association of Arterial Stiffness with Chronic Kidney Disease: A Systematic Review
Association of Arterial Stiffness with Chronic Kidney Disease: A Systematic Review Open
Introduction: Significant kidney function may be lost before CKD is diagnosed. Arterial stiffness may be a risk factor for CKD and the relationship may be bi-directional. A systematic review of cohort studies was undertaken to ascertain th…
View article: Arterial stiffness and incident chronic kidney disease: a large population-based cohort study
Arterial stiffness and incident chronic kidney disease: a large population-based cohort study Open
View article: Arterial Stiffness and Incident Glaucoma: A Large Population-Based Cohort Study
Arterial Stiffness and Incident Glaucoma: A Large Population-Based Cohort Study Open
Arterial stiffness measured with a simple oscillometric device predicted the development of glaucoma and could potentially be used in clinical practice to help identify people at risk of this condition. It may also present a new therapeuti…
View article: Service Uptake Challenges Experienced by Pasifika Communities during COVID-19 Lockdowns in New Zealand
Service Uptake Challenges Experienced by Pasifika Communities during COVID-19 Lockdowns in New Zealand Open
Background: New Zealand was one of the first countries to adopt an elimination strategy based on a four-tier Alert Level system that included strict lockdowns at levels three and four. The lockdowns meant shutting out external social netwo…
View article: Associations of Self-Reported Sun Exposure and 25- Hydroxyvitamin D with Blood Pressure: Cross-Sectional Analysis from a Multi-Ethnic Community Sample
Associations of Self-Reported Sun Exposure and 25- Hydroxyvitamin D with Blood Pressure: Cross-Sectional Analysis from a Multi-Ethnic Community Sample Open
Background : Physiological and epidemiological studies indicate that vitamin D may have several antihypertensive actions, and sun exposure is the primary source of vitamin D in humans. However, the results of recent trials are inconsistent…
View article: Priority Health Needs and Challenges in New Zealand Pacific Communities—A Qualitative Analysis of Healthcare Delivery during the COVID-19 Pandemic
Priority Health Needs and Challenges in New Zealand Pacific Communities—A Qualitative Analysis of Healthcare Delivery during the COVID-19 Pandemic Open
Background: The Pacific community in New Zealand experienced an increased risk of COVID-19 transmission due to delayed contact tracing, along with a disproportionate prevalence of health challenges. The community is representative of a div…
View article: A Health Profile of Niue Tertiary Students in Aotearoa, New Zealand
A Health Profile of Niue Tertiary Students in Aotearoa, New Zealand Open
Little is known about the health profile of tertiary students within Aotearoa, New Zealand (NZ), and this paper is the first to explore the health profile of Niue tertiary students within NZ. Part 1 comprises a scoping review which found t…
View article: Diabetes in the Cook Islands: a clinical audit
Diabetes in the Cook Islands: a clinical audit Open
Introduction The global burden of diabetes mellitus (diabetes) is significant and of increasing concern with more pregnant women being diagnosed with gestational diabetes mellitus (GDM). The Cook Islands face mounting pressures to address …
View article: Efficacy of vitamin D3 supplementation on cancer mortality: Systematic review and individual patient data meta-analysis of randomised controlled trials
Efficacy of vitamin D3 supplementation on cancer mortality: Systematic review and individual patient data meta-analysis of randomised controlled trials Open
View article: Association of arterial stiffness and neuropathy in diabetes: a systematic review and meta-analysis
Association of arterial stiffness and neuropathy in diabetes: a systematic review and meta-analysis Open
Evidence is still emerging on the relationships of arterial stiffness with cardiac autonomic neuropathy (CAN) and peripheral neuropathy (PN). To our knowledge no systematic reviews or meta-analyses of these associations have been published…
View article: Prediction of Vitamin D Deficiency in Older Adults: The Role of Machine Learning Models
Prediction of Vitamin D Deficiency in Older Adults: The Role of Machine Learning Models Open
Context Conventional prediction models for vitamin D deficiency have limited accuracy. Background Using cross-sectional data, we developed models based on machine learning (ML) and compared their performance with those based on a conventio…
View article: Identifying metabolic syndrome in migrant Asian Indian adults with anthropometric and visceral fat action points
Identifying metabolic syndrome in migrant Asian Indian adults with anthropometric and visceral fat action points Open
View article: Circulating cardiac biomarkers improve risk stratification for incident cardiovascular disease in community dwelling populations
Circulating cardiac biomarkers improve risk stratification for incident cardiovascular disease in community dwelling populations Open
View article: Atrial fibrillation detection in primary care during blood pressure measurements and using a smartphone cardiac monitor
Atrial fibrillation detection in primary care during blood pressure measurements and using a smartphone cardiac monitor Open
View article: Vitamin D supplementation to prevent acute respiratory infections: a systematic review and meta-analysis of aggregate data from randomised controlled trials
Vitamin D supplementation to prevent acute respiratory infections: a systematic review and meta-analysis of aggregate data from randomised controlled trials Open
View article: Effect of Monthly Vitamin D Supplementation on Preventing Exacerbations of Asthma or Chronic Obstructive Pulmonary Disease in Older Adults: Post Hoc Analysis of a Randomized Controlled Trial
Effect of Monthly Vitamin D Supplementation on Preventing Exacerbations of Asthma or Chronic Obstructive Pulmonary Disease in Older Adults: Post Hoc Analysis of a Randomized Controlled Trial Open
Randomized controlled trials have suggested that vitamin D supplementation can prevent asthma and chronic obstructive pulmonary disease (COPD) exacerbations. For COPD, the benefit appears to be limited to individuals with baseline 25-hydro…
View article: Is There Proof of Extraskeletal Benefits From Vitamin D Supplementation From Recent Mega Trials of Vitamin D?
Is There Proof of Extraskeletal Benefits From Vitamin D Supplementation From Recent Mega Trials of Vitamin D? Open
Scientific interest in possible extraskeletal effects of vitamin D first appeared in the 1930s soon after the structure of vitamin D was characterized, and increased in the 1980s with the development of assays of 25‐hydroxyvitamin D status…
View article: Vitamin D and Clinical Cancer Outcomes: A Review of Meta‐Analyses
Vitamin D and Clinical Cancer Outcomes: A Review of Meta‐Analyses Open
The relationship between vitamin D status or supplementation and cancer outcomes has been examined in several meta‐analyses. To address remaining knowledge gaps, we conducted a systematic overview and critical appraisal of pertinent meta‐a…
View article: Author response for "Vitamin D and clinical cancer outcomes: a review of meta‐analyses"
Author response for "Vitamin D and clinical cancer outcomes: a review of meta‐analyses" Open
View article: Vitamin D supplementation to prevent acute respiratory infections: systematic review and meta-analysis of aggregate data from randomised controlled trials
Vitamin D supplementation to prevent acute respiratory infections: systematic review and meta-analysis of aggregate data from randomised controlled trials Open
Background A 2017 meta-analysis of data from 25 randomised controlled trials of vitamin D supplementation for the prevention of acute respiratory infections revealed a protective effect of the intervention. Since then, 20 new RCTs have bee…
View article: Identification of Distinct Arterial Waveform Clusters and a Longitudinal Evaluation of Their Clinical Usefulness
Identification of Distinct Arterial Waveform Clusters and a Longitudinal Evaluation of Their Clinical Usefulness Open
Clustering of arterial blood pressure (BP) waveform parameters could summarize complex information into distinct elements, which could be used to investigate cumulative (nonredundant) associations. We investigated this hypothesis in a larg…
View article: Effect of Monthly High-Dose Vitamin D Supplementation on Risk of Cancer: the Vitamin D Assessment Study (a Randomized Controlled Trial)
Effect of Monthly High-Dose Vitamin D Supplementation on Risk of Cancer: the Vitamin D Assessment Study (a Randomized Controlled Trial) Open
Importance: Previous randomized controlled trials have provided inconsistent results on the effect of vitamin D supplementation on cancer incidence. Objective: To determine if monthly high-dose vitamin D supplementation, without calcium, r…
View article: Monthly High-Dose Vitamin D Supplementation and Cancer Risk
Monthly High-Dose Vitamin D Supplementation and Cancer Risk Open
anzctr.org.au Identifier: ACTRN12611000402943.
View article: Effect of Monthly, High-Dose, Long-Term Vitamin D on Lung Function: A Randomized Controlled Trial
Effect of Monthly, High-Dose, Long-Term Vitamin D on Lung Function: A Randomized Controlled Trial Open
Although observational studies suggest positive vitamin D-lung function associations, randomized trials are inconsistent. We examined effects of vitamin D supplementation on lung function. We recruited 442 adults (50–84 years, 58% male) in…
View article: Relations of Demographic and Clinical Factors With Cardiovascular Autonomic Function in a Population-Based Study: An Assessment By Quantile Regression
Relations of Demographic and Clinical Factors With Cardiovascular Autonomic Function in a Population-Based Study: An Assessment By Quantile Regression Open
BACKGROUND The relationships of many factors with cardiovascular autonomic function (CVAF) outcome parameters may not be uniform across the entire distribution of the outcome. We examined how demographic and clinical factors varied with di…
View article: Effect of Monthly High-Dose Vitamin D Supplementation on Cardiovascular Disease in the Vitamin D Assessment Study
Effect of Monthly High-Dose Vitamin D Supplementation on Cardiovascular Disease in the Vitamin D Assessment Study Open
clinicaltrials.gov Identifier: ACTRN12611000402943.