Ectopic pregnancy {epicalc}R Documentation

Dataset of a case-control study looking at history of abortion as a risk factor for ectopic pregnancy

Description

This case-control study has one case series and two control groups.
The subjects were recruited based on three types of pregnancy outcome

Usage

data(Ectopic)

Format

A data frame with 723 observations on the following 4 variables.

id
a numeric vector
outc
a factor with levels EP IA Deli

EP = ectopic pregnancy
IA = women coming for induced abortion
Deli = women admitted for full-term delivery

hia
a factor with levels never IA ever IA
gravi
a factor with levels 1-2 3-4 >4

Examples

data(Ectopic)
library(nnet)
use(Ectopic)
multi1 <- multinom(outc ~ hia + gravi, data=.data)
summary(multi1)
mlogit.display(multi1)

# Changing referent group of outcome
outcIA <- relevel(outc, ref="IA")
pack()
multi2 <- multinom(outcIA ~ hia + gravi, data=.data)
summary(multi2)
mlogit.display(multi2)

[Package epicalc version 2.10.1.1 Index]