Fast Track dataset codebook

Permanent Identifier:

https://doi.org/10.17037/DATA.00001531

Description

The TB Fast Track dataset was produced as part of an open-label, pragmatic cluster-randomised trial, with primary health clinics as the unit of randomisation, conducted in South Africa. The dataset consists of three data tables: a "baseline" table that lists participant characteristics measured at enrolment; an "outcomes" table containing details of primary and secondary outcomes; and a "I-sputumresults" table that lists sputum results from specimen collected at enrolment (intervention arm only). These data underpin analysis reported in a Lancet HIV 2020 paper.

Baseline table

Data from Table 1 and TB probability category (see Table in supplementary appendix)

Variable name Display name Value type Description Coding
idanon float %9.0g participant id  
sitecode float %9.0g site code  
arm byte %12.0g study arm 0=control; 1=intervention
gender byte %8.0g sex 1=male; 2=female
cd4count float %9.0g CD4 count (cells/muL)  
age float %9.0g Age (years)  
cd4_cat float %9.0g CD4 count grouped 1= <50; 2=50-99; 3=100-150
bmi float %9.0g Body mass index (kg/m2)  
bmi_cat float %9.0g Body mass index grouped 1= <18.5; 2=18.5-24.9; 3=25-29.0; 4=>=30
tbtestslast6months byte %10.0g TB tests in last 6m before enrolment 0=no; 1=yes
anysx float %9.0g Any TB symptoms 0=no; 1=yes
treatedfortbinpast byte %10.0g Treated for TB previously 0=no; 1=yes
currentlytakingcpt byte %10.0g Currently taking CPT 0=no; 1=yes
currentlytakingipt byte %10.0g Currently taking IPT 0=no; 1=yes
hb_bin float %9.0g Haemoglobin grouped 0= >=100; 1= <100g/L
probabilityoftb byte %8.0g TBFT algorithm - prob of TB 1=high; 2=medium; 3=low
lamcriteria float %9.0g LAM status 0=negative; 1=positive

Outcomes table

Table 2 data and figure 2 from supplementary appendix.

Variable name Display name Value type Description Coding
idanon float %9.0g participant id  
arm byte %12.0g study arm 0=control; 1=intervention
dend_days int %9.0g Days from enrolment to date of death / censoring for 6 months (6m) mortality analysis  
died_6m byte %9.0g Died by 6m 0=no; 1=yes
tbstart_6m byte %9.0g Started TB treatment by 6m 0=no; 1=yes
dendtb_days int %9.0g Days from enrolment to date of starting TB treatment/censoring for 6m TB analysis  
artstart_6m byte %9.0g Started ART by 6m 0=no; 1=yes
artstart_30d byte %9.0g Started ART by 30 days 0=no; 1=yes
dendart_days int %9.0g Days from enrolment to date of starting ART/censoring for 6m ART analysis  
hospadm_6m float %9.0g Hospital admission by 6m 0=no; 1=yes
retention_6m float %10.0g Retention by 6m 0=no; 1=yes

I-sputumresults table

Sputum results data from specimen collected at enrolment (intervention arm)

Variable name Display name Value type Description Coding
idanon float %9.0g participant id  
arm byte %12.0g study arm  
microres byte %8.0g microscopy result 0=negative; 1=positive
cultres byte %8.0g culture result 0=negative; 1=positive
sensINH str6 %9s Drug sensitivity for INH S=sensitive; R=resistant
sensRIF str6 %9s Drug sensitivity for RIF S=sensitive; R=resistant
mtb float %9.0g MTB result (if culture positive) 0=not MTB; 1=MTB; 9=unknown