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Timeline follow back(TLFB)PID 18

The Codebook is a human-readable, read-only version of the project's Data Dictionary and serves as a quick reference for viewing the attributes of any given field in the project without having to download and interpret the Data Dictionary. Note: Checkbox fields have their coded values displayed both in the format defined by users in the Online Designer/Data Dictionary as well as in the extended format seen in data imports and exports (i.e., field___code).

Data Dictionary Codebook 02/28/2026 10:06am
Field finder: When viewing this page, collapse:
Data Dictionary Codebook
Timeline follow back(TLFB) (PID: 18)
02/28/2026 10:06am
Instruments
Instrument Form Name
Timeline Followback Tlfb timeline_followback_tlfb
# Variable / Field Name Field Label
Field Note
Field Attributes (Field Type, Validation, Choices, Calculations, etc.)
Instrument:Timeline Followback Tlfb(timeline_followback_tlfb) Enabled as survey
1 [record_id] Record ID text
2 [participant_name_tlfb] Participant name

प्रतिभागी का नाम
text
3 [tlfb_3] Day:
दिन:
dropdown
1Monday
2Tuesday
3Wednesday
4Thursday
5Friday
6Saturday
7Sunday
4 [tlfb_4] Any illicit substance or alcohol?


क्या आपने किसी अवैध पदार्थ या शराब का सेवन किया है?


yesno
1Yes
0No
5 [tlfb_5] If yes for alcohol, specify quantity:

यदि हाँ, तो शराब की मात्रा बताइए:
text
6 [tlfb_6] On this day, have you consumed...
Cannabinoids/ Marijuana

इस दिन क्या आपने...

कैनाबिनोइड्स/ मारिजुआना ग्रहण किया है।

yesno
1Yes
0No
7 [tlfb_7] On this day, have you consumed...
Cocaine


इस दिन क्या आपने...


कोकेन ग्रहण किया है।



yesno
1Yes
0No
8 [tlfb_8] On this day, have you consumed...
Crack

इस दिन क्या आपने...

क्रैक ग्रहण किया है।





yesno
1Yes
0No
9 [tlfb_9] On this day, have you consumed...
Amphetamine-type stimulants

इस दिन क्या आपने...
एम्फ़ैटेमिन-प्रकार के उत्तेजक पदार्थ ग्रहण किया है।







yesno
1Yes
0No
10 [tlfb_10] On this day, have you consumed...
Opioid analgesics, including methadone

इस दिन क्या आपने...

मेथाडोन सहित ओपियोइड एनाल्जेसिक ग्रहण किया है।





yesno
1Yes
0No
11 [tlfb_11] On this day, have you consumed...
Heroin

इस दिन क्या आपने...

हेरोइन ग्रहण किया है।





yesno
1Yes
0No
12 [tlfb_12] On this day, have you consumed...
Hallucinogens, including MDMA/ecstasy

इस दिन क्या आपने...

एम् डी एम् ए /एक्स्टसी सहित हेलुसीनोजेन्स ग्रहण किया है।






yesno
1Yes
0No
13 [tlfb_13] On this day, have you consumed...
Sedatives and hypnotics, excluding Benzodiazepine


इस दिन क्या आपने...

बेंजोडायजेपाइन को छोड़कर शामक और कृत्रिम निद्रावस्था वाली दवाएँ ग्रहण किया है।





yesno
1Yes
0No
14 [tlfb_14] On this day, have you consumed...
Benzodiazepines

इस दिन क्या आपने...

बेंज़ोडायजेपाइन ग्रहण किया है।






yesno
1Yes
0No
15 [tlfb_15] On this day, have you consumed...
Inhalants

इस दिन क्या आपने...
इनहेलेंट ग्रहण किया है।









yesno
1Yes
0No
 
16 [timeline_followback_tlfb_complete]
Section Header: Form Status
Complete?
dropdown
0Incomplete
1Unverified
2Complete
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