ERFs of vitamins

This page is a knowledge crystal of subtype variable. The page identifier is Op_en6866
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Question

What are exposure-response functions to vitamins?

Answer

+ Show code- Hide code #This is code Op_en6866/ on page [[ERFs of vitamins]] library(OpasnetUtils) objects.latest("Op_en6866", code_name="initiate") ERF_vit <- EvalOutput(ERF_vit) threshold_vit <- EvalOutput(threshold_vit) cat("ERF_vit\n") oprint(summary(ERF_vit)) cat("threshold_vit\n") oprint(summary(threshold_vit))

Rationale

Data

• Response metric: 1 if the recommendation is not met, 0 if it is met.

ERFs of vitamins(-)

Obs	Exposure agent	Response	Exposure	Exposure unit	ER function	Scaling	Threshold	ERF	Description
1	Vitamin D	Vitamin D recommendation	Daily intake	ug /d	Step	None	10	100	Finnish nutrition recommendations 2014

Finnish nutrition recommendations 2014

Calculations

+ Show code- Hide code # This is code Op_en6866/ERF_vit2 on page [[ERF of vitamins]] # Note! This version has ERF and threshold in the same ovariable. library(OpasnetUtils) ERF_vit <- Ovariable("ERF_vit", ddata = "Op_en6866") colnames(ERF_vit@data) <- gsub(" ", "_", colnames(ERF_vit@data)) objects.store(ERF_vit) cat("Ovariable ERF_vit stored.\n")

+ Show code- Hide code # This is code Op_en6866/initiate on page [[ERFs of vitamins]] library(OpasnetUtils) d <- opbase.data("Op_en6866")[-1] #Remove Obs colnames(d) <- gsub(" ", "_", colnames(d)) d$Result <- ifelse(d$Result == "", "0", as.character(d$Result)) ERF_vit <- Ovariable("ERF_vit", data = d[d$Observation == "ERF", colnames(d) != "Observation"]) threshold_vit <- Ovariable("threshold_vit", data = d[d$Observation == "Threshold", colnames(d) != "Observation"]) objects.store(ERF_vit, threshold_vit) cat("Ovariables ERF_vit, threshold_vit stored.\n")

See also

• Exposure-response function

References

• Serum 25-hydroxyvitamin D levels and survival in colorectal and breast cancer patients: Systematic review and meta-analysis of prospective cohort studies
• New insights into the role of vitamin D and calcium in osteoporosis management: an expert roundtable discussion.
• Vitamin D Therapy
• Vitamin D insufficiency and chronic diseases: hype and reality.
• Osteoporosis - a review
• Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety.
• Low vitamin D status: definition, prevalence, consequences, and correction.