Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter.
Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.
OCR for page 1019
DRI Dietary Reference Intakes Calcium Vitamin D
F
Evidence Maps
As part of the committee’s approach to the evaluation of data, evidence maps were developed to assist the committee in organizing its review of the available evidence for each indicator of interest. No effort was made to “fine tune” these maps, but rather they were an initial tool used by the committee to quickly summarize the nature of the available data. The evidence maps below show the evidence from mechanistic and animal data, observational studies, and randomized controlled trials (RCTs). In its evaluation of RCT evidence, the committee considered the study design and whether an indicator was pre-specified as a primary or secondary outcome. Overall, the committee evaluated individual studies and when needed, took methodological differences into account when categorizing a study for inclusion in the evidence maps. However the committee acknowledges the variability in the quality of studies within and across categories, and relied on its expert judgment and a detailed evaluation of each study when drawing conclusions about the relevance and application of an indicator to further consideration in the DRI process. Chapter 4 provides detailed text on each of the key studies that were considered by the committee for the selection of an indicator.
OCR for page 1020
DRI Dietary Reference Intakes Calcium Vitamin D
TABLE F-1 Evidence Map for Cancer/Neoplasms
Indicator
Mechanistic Data
Animal Data
Observational Studies
Randomized Trials
Primary Outcome
Secondary or Non–Pre-specified Outcomesa
Calcium
All cancers
b
b
Breast cancer
—
—
—
—
Colorectal cancer
b
b
Colorectal adenoma
—
Prostate cancer
—
—
—
Vitamin D
All cancers
—
b
Breast cancer
—
—
—
b
Colorectal cancer
—
b
Colorectal adenoma
—
b
Prostate cancer
—
—
—
—
NOTE: = evidence is published; — = no available evidence.
aSecondary outcomes often were not pre-specified by the investigators.
bLimited data.
TABLE F-2 Evidence Map for Cardiovascular Diseases (CVD)/Hypertension
Indicator
Mechanistic Data
Animal Data
Observational Studies
Randomized Trials
Primary Outcome
Secondary or Non–Pre-specified Outcomea
Calcium
—
b
Vitamin D
—
b
NOTE: = evidence is published; — = no available evidence.
aSecondary outcomes often were not pre-specified by the investigators.
bLimited data.
TABLE F-3 Evidence Map for Diabetes (Type 2) and Metabolic Syndrome
Indicator
Mechanistic Data
Animal Data
Observational Studies
Randomized Trials
Primary Outcome
Secondary or Non–Pre–specified Outcomesa
Vitamin D
NOTE: = evidence is published; — = no available evidence.
aSecondary outcomes often were not pre-specified by the investigators.
OCR for page 1021
DRI Dietary Reference Intakes Calcium Vitamin D
TABLE F-4 Evidence Map for Falls and Physical Performance
Indicator
Mechanistic Data
Animal Data
Observational Studies
Randomized Trials
Primary Outcome
Secondary or Non–Pre-specified Outcomesa
Calcium
Vitamin D
NOTE: = evidence is published; — = no available evidence.
aSecondary outcomes often were not pre-specified by the investigators.
TABLE F-5 Evidence Map for Immune Function
Indicator
Mechanistic Data
Animal Data
Observational Studies
Randomized Trials
Primary Outcome
Secondary or Non–Pre-specified Outcomesa
Vitamin D
Asthma
—
—
Diabetes (Type 1)
—
—
Irritable bowel and crohn’s disease
—
—
Multiple sclerosis
—
—
Rheumatoid arthritis
—
—
—
Systemic lupus erythematosus
—
—
Tuberculosis
Influenza/Upper respiratory infections
—
NOTE: = evidence is published; — = no available evidence.
aSecondary outcomes often were not pre-specified by the investigators.
OCR for page 1022
DRI Dietary Reference Intakes Calcium Vitamin D
TABLE F-6 Evidence Map for Neuropsychological Functioning
Indicator
Mechanistic Data
Animal Data
Observational Studies
Randomized Trials
Primary Outcome
Secondary or Non–Pre-specified Outcomesa
Vitamin D
Autism
—
—
Cognitive Function
—
—
Depression
—
—
NOTE: = evidence is published; — = no available evidence.
aSecondary outcomes often were not prespecified by the investigators.
TABLE F-7 Evidence Map for Preeclampsia of Pregnancy
Indicator
Mechanistic Data
Animal Data
Observational Studies
Randomized Trials
Primary Outcome
Secondary or Non–Pre-specified Outcomesa
Calcium
—
—
Vitamin D
—
—
—
—
NOTE: = evidence is published; — = no available evidence.
aSecondary outcomes often were not pre-specified by the investigators.
OCR for page 1023
DRI Dietary Reference Intakes Calcium Vitamin D
TABLE F-8 Evidence Map for Bone Health
Indicator
Mechanistic Data
Animal Data
Observational Studies
Randomized Trials
Primary Outcome
Secondary or Non–Pre-specified Outcomesa
Calcium absorption
Calcium balance
BMD/BMC
Fracture risk
Osteomalacia/rickets
Intermediate
Mechanistic Data
Animal Data
Observational Studies
Randomized Trials
Primary Outcome
Secondary or Non–Pre-specified Outcomesa
25OHD
PTH
NOTE: Data may reflect studies designed to study combined calcium and vitamin D administration, calcium alone, or vitamin D alone. = evidence is published; — = no available evidence.
aSecondary outcomes often were not pre-specified by the investigators.
OCR for page 1024
DRI Dietary Reference Intakes Calcium Vitamin D
This page intentionally left blank.