Milk: Fat Content of Human Milk by Two Methods.

In R4HCR: R for Health Care Research

Fat Content of Human Milk by Two Methods.

Description

Fat content of human milk determined by enzymic procedure for the determination of triglycerides and measured by the standard Gerber method (g/100 ml).

Usage

Milk

Format

A data frame with 45 observations on the following 2 variables.

Gerber

Fat content measured by the standard gerber method (g/100 ml).

Trig

Fat content measured by determination of triglycerides (g/100 ml).

Details

Fat content of human milk determined by enzymic procedure for the determination of triglycerides (standard Gerber method) and determined by the measurement of glycerol released by enzymic hydrolysis of triglycerides.

References

Bland, J.M. and Altman, D.G., 1999. Measuring agreement in method comparison studies. Statistical methods in medical research, 8(2), pp.135-160.

Examples

data(Milk, package = "R4HCR")

d <- with(Milk, Trig - Gerber)
a <- with(Milk, (Trig + Gerber)/2)

# regression approach for nonuniform differences
M <- lm(d ~ a)

# as per Bland and Altman (1999) page 147.
coef(M)

R4HCR documentation built on Sept. 30, 2024, 9:46 a.m.