J index is a measure of glycemic variability that combines information of the standard deviation and the mean, and excludes severe and persistent hypoglycemia.
Usage
jigvp(x, t = 24)
Value
A data frame containing the ji values.
Arguments
x
Data-set with data frame format containing three columns:
date: date of the observation with format yyyy/mm/dd.
time: time of the observation with 24 hour format hh:mm:ss.
glucose: glucose value of the observation in [mg/dl].
t
Numeric value with interval for calculating the measurement. Permitted values are 4, 6, 8, 12 and 24 hours. Default value of 24 hours.
Author
Sergio Contador.
References
F. John Service. Glucose variability. Diabetes, 62(5):1398–1404, 2013.