calcAvignon.SI: Calculate Avignon SI

In venkmurthy/vmtools: Venk Murthy's Handy Tools

Calculate Avignon SI

Description

This function calculates Avignon insulin sensitivity index from 2 hour oral glucose tolerance test Reference: Avignon A, et al. International Journal of Obesity 1999; 23:512-7 DOI: 10.1038/sj.ijo.0800864

Usage

calcAvignon.SI(
  insulin.fasting,
  glucose.fasting,
  insulin.2h,
  glucose.2h,
  weight
)

Arguments

weight	in kg
fasting.insulin	in μU/mL
fasting.glucose	in mass units (mg/dL)
2h.insulin	in μU/mL
2h.glucose	in mass units (mg/dL)

Value

Avignon SI.b, SI.2h and SI.m as numeric value

Examples

calcAvignon.SI(15.0,100.0,30,150,80)

glucose.fasting.vals <- seq(75,175,by=25)
insulin.fasting.vals <- seq(2,20, by=1)
glucose.2h.vals <- seq(75,175,by=25)
insulin.2h.vals <- seq(2,20, by=1)
weight.vals <- seq(50,90,by=10)
test.dat <- expand.grid(insulin.fasting=insulin.vals,glucose.fasting=glucose.vals,
                        insulin.2h=insulin.2h.vals,glucose.2h=glucose.2h.vals,weight=weight.vals)

test.dat <- cbind(test.dat,calcAvignon.SI(insulin.fasting=test.dat$insulin.fasting,
                                          glucose.fasting=test.dat$glucose.fasting,
                                          insulin.2h=test.dat$insulin.2h,
                                          glucose.2h=test.dat$glucose.2h,
                                          weight=test.dat$weight))

venkmurthy/vmtools documentation built on Oct. 16, 2024, 10:48 a.m.