R: Conversion to diabetes

DMconv {Epi} | R Documentation

## Conversion to diabetes

### Description

Data from a randomized intervention study ("Addition") where persons with prediabetic conditions are followed up for conversion to diabetes (DM). Conversion dates are interval censored. Original data are not published yet, so id-numbers have been changed and all dates have been randomly perturbed.

### Usage

    data(DMconv)

### Format

A data frame with 1519 observations on the following 6 variables.

`id`

  Person identifier

`doe`

  Date of entry, i.e. first visit.

`dlw`

  Date last seen well, i.e. last visit without DM.

`dfi`

  Date first seen ill, i.e. first visit with DM.

`gtol`

  Glucose tolerance. Factor with levels: 1="IFG" (impaired fasting glucose), 2="IGT" (impaired glucose tolerance).

`grp`

  Randomization. Factor with levels: 1="Intervention", 2="Control".

### Source

Signe Saetre Rasmussen, Steno Diabetes Center. The Addition Study.

### Examples

    data(DMconv)
    str(DMconv)
    head(DMconv)

[Package Epi version 2.37 Index]