Treatment as Prevention ANRS 12249

South Africa, 2012 - 2016

Get Microdata

Reference ID

ANRS12249TasP

Producer(s)

Dabis, François, Newell, Marie-Louise, Pillay, Deenan

Collections

TasP ANRS 12249

Metadata

Documentation in PDF DDI/XML JSON

Created on

Jan 30, 2018

Last modified

Jan 30, 2018

Page views

394627

Downloads

4610

Lost to Follow Up - Computed Date of Lost to Follow Up (LFUDateComputed)

Data file: Exits

Overview

Valid: 230

Minimum: 2012-08-24

Maximum: 2016-11-19

Type: Discrete

Range: -

Format: character

Description

Universe

ExitType==1 (lost to follow-up) AND ClinicExitComputed==1

Imputation and derivation

Imputation

When VPLFUDate was incomplete or missing, or when this date was inconsistent (i.e. after VisitDate), a new date was randomly generated within a window taking into account Year and/or month if available in VPLFUDate.

Otherwise, VisitDate (i.e. the date the transferred out was documented) was used.

To identify when that date was imputed, please look at ExitDateComputedEstimated variable.

Please note that LFUDateComputed was computed only for Losts to follow-up corresponding to a clinic exit (ClinicExitComputed==1)

Others

Notes

(i) if exit date was missing or (ii) the year of the exit date was unknown or (iii) exit date was after VisitDate, then VisitDate (the date the exit from has been completed) was used instead of the exit date.

FIELD TO BE REMOVED

Back to Catalog