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Can Observational Studies be as good as Random Controlled Trials for Vitamin D

Dr. Grant is looking at extending the power of Observational Studies in place of RCT for Vitamin D as of Feb 2013

The source PDF files of previous studies are attached at the bottom of this page

See also VitaminDWiki

Summary of Vitamin D trials - Grant Nov 2012
All items in category Vitamin D Evidence 60 items
All items in category Meta-analysis 667 items
101 vitamin D INVERVENTION trials added during first 7 months of 2012
Proof that Vitamin D Works 24 items. mostly RCT, as of Feb 2013

short url = http://is.gd/OSRCT

Can Observational Studies be as good as Random Controlled Trials for Vitamin D

5997 visitors, last modified 27 Feb, 2013,

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Links to this page
- Vitamin D-disease associations vary with the type of study – RCT, Observational, MR - July 2022 Levels of evidence for levels of vitamin D – Dec 2013

This page is in the following categories (# of items in each category)

Evidence for D 57 Intervention 816 Top news 911

Edit Files 4

Attached files

ID	Name	Comment	Uploaded	Size	Downloads
2156	Evidence-based public health Victora - 2004.pdf	PDF	admin 27 Feb, 2013	92.44 Kb	984
2153	32-RCTs observational studies heirarchy Concato.pdf	PDF	admin 27 Feb, 2013	94.16 Kb	7608
2152	32-RCTs observar comparison Benson.pdf	PDF	admin 27 Feb, 2013	119.94 Kb	791
2151	32-RCTs obs meta-analyses Golder.pdf	PDF	admin 27 Feb, 2013	561.46 Kb	889

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Health Problems and D

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Anesthesia ==> Cog

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Gout (13+)

Gut (207+) Overview

Bariatric (15+)

Celiac (7+)

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Hair (20+)

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Pregnancy (41+)

Hyperparathyroid Overview

Immunity (273+)

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CRP (19+)

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Influenza Overview

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Chronic Kidney (63+)

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NAFLD (27+)

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Muscle (113+)

Handgrip (12+)

Sarcopenia (30+)

Muscular Dystrophy (9+)

Myopia (17+)

Obesity (442+)Overview

Child & Youth (60+)

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Weight Loss (31+)

Osteoarthritis (61+) Overview

Knee (26+)

Osteoporosis (220+) Overview

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Caesarean (15+)

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Miscarriage (31+)

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Omega-3 before and during (49+)

PCOS (15+)

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Preterm (125+)

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Stillbirth (8+)

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Psoriasis (72+)

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Restless Legs Syndrome (15+)

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Schizophrenia Overview

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Aging

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PTH (34+)

Trauma/Surgery (352+)

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ICU & Loading Dose (69+)

Need Vit D (69+)

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Vertigo (22+)

Skin - Dark (460+) Overview

Pregnancies (30+)

Sports (277+) Overview

Exercise (68+)

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Traumatic Brain Inj. (24+)

Women (196+) Overview

Endometriosis (25+)

Incontinence (16+)

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PCOS

Premenstrual Syndrome (20+)

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Orient (77+)

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Far from Equator (124+)

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A list includes 290+ pages having many studies
# of studies as of Dec 11, 2024
short URL for this page = is.gd/dhealth