abortion

Outcomes of pregnancies exposed to coumarin derivatives. The aim is to
 investigate whether exposition to coumarin derivatives increases the
 probability of spontaneous abortions. Apart from spontaneous abortion,
 pregnancy may end in induced abortion or live birth, leading to a
 competing risks situation. Moreover, data are left-truncated as women
 usually enter the study several weeks after conception.

datasets

The etm (empirical transition matrix) package permits to estimate the matrix of transition probabilities for any time-inhomogeneous multi-state model with finite state space using the Aalen-Johansen estimator. Functions for data preparation and for displaying are also included (Allignol et al., 2011 <doi:10.18637/jss.v038.i04>). Functionals of the Aalen-Johansen estimator, e.g., excess length-of-stay in an intermediate state, can also be computed (Allignol et al. 2011 <doi:10.1007/s00180-010-0200-x>).

Mark Clements

Empirical Transition Matrix

Arthur Allignol

abortion function

A data frame with 1186 observations on the following 5 variables.<dl>
 <dt><code>id</code></dt>
<dd>Identification number</dd> <dt><code>entry</code></dt>
<dd>Entry times into the cohort</dd> <dt><code>exit</code></dt>
<dd>Event times</dd> <dt><code>group</code></dt>
<dd>Group. 0: control, 1: exposed to coumarin
 derivatives</dd> <dt><code>cause</code></dt>
<dd>Cause of failure. 1: induced abortion, 2: life
 birth, 3: spontaneous abortion</dd> 
</dl>

Format

Pregnancies exposed to coumarin derivatives — abortion

A data frame with 1186 observations on the following 5 variables.<dl>
 <dt><code>id</code></dt>
<dd>Identification number</dd>

 <dt><code>entry</code></dt>
<dd>Entry times into the cohort</dd>

 <dt><code>exit</code></dt>
<dd>Event times</dd>

 <dt><code>group</code></dt>
<dd>Group. 0: control, 1: exposed to coumarin
 derivatives</dd>

 <dt><code>cause</code></dt>
<dd>Cause of failure. 1: induced abortion, 2: life
 birth, 3: spontaneous abortion</dd>

 
</dl>

abortion: Pregnancies exposed to coumarin derivatives

Description

Usage

Arguments

Format

Examples