screening_date

The information on the screening data and baseline drug
screening data is complex and inconsistent across studies. This file has
information on dates around the screening visit and baseline timeline
follow back assessments.

datasets

These are harmonized datasets produced as part of the Clinical
Trials Network (CTN) protocol number 0094. This is a US National Institute
of Drug Abuse (NIDA) funded project; to learn more go to
<https://ctnlibrary.org/protocol/ctn0094/>. These are datasets which have
the data harmonized from CTN-0027 (<https://ctnlibrary.org/protocol/ctn0027/>),
CTN-0030 (<https://ctnlibrary.org/protocol/ctn0030/>), and CTN-0051
(<https://ctnlibrary.org/protocol/ctn0051/>).

Raymond Balise

public.ctn0094data

De-Identified Data from CTN-0094

Gabriel Odom

Anna Calderon

Kyle Grealis

Michael Ackerman

screening_date function

A tibble with 3,430 rows and
3 variables:
<dl>
<dt>who</dt>
<dd><table class="table">
<tr><td>Type:</td><td>integer</td></tr>
<tr><td></td><td></td></tr>
<tr><td>Description:</td><td>Patient ID</td></tr>
</table></dd><dt>screening_day</dt>
<dd><table class="table">
<tr><td>Type:</td><td>integer</td></tr>
<tr><td></td><td></td></tr>
<tr><td>Description:</td><td>The day of screening</td></tr>
</table></dd><dt>day_zero</dt>
<dd><table class="table">
<tr><td>Type:</td><td>integer</td></tr>
<tr><td></td><td></td></tr>
<tr><td>Description:</td><td>Best guess at the end of TLFB</td></tr>
</table></dd>
</dl>

Format

Screening Date Information — screening_date

A tibble with 3,430 rows and
3 variables:
<dl>
<dt>who</dt>
<dd><table class='table'>
<tr><td>Type:</td><td>integer</td></tr>
<tr><td></td><td></td></tr>
<tr><td>Description:</td><td>Patient ID</td></tr>
</table>



</dd>

<dt>screening_day</dt>
<dd><table class='table'>
<tr><td>Type:</td><td>integer</td></tr>
<tr><td></td><td></td></tr>
<tr><td>Description:</td><td>The day of screening</td></tr>
</table>



</dd>

<dt>day_zero</dt>
<dd><table class='table'>
<tr><td>Type:</td><td>integer</td></tr>
<tr><td></td><td></td></tr>
<tr><td>Description:</td><td>Best guess at the end of TLFB</td></tr>
</table>



</dd>


</dl>

screening_date: Screening Date Information

Description

Usage

Arguments

Format

Type:	integer

Description:	Patient ID

Type:	integer

Description:	The day of screening

Type:	integer

Description:	Best guess at the end of TLFB