TB cases (1974-2018) and controls (1998-2018) analytical dataset (Karonga)

Malawi

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Reference ID

MWI-MEIRU-TB-COMBINE-FINAL-2022-v01

Producer(s)

Mia Crampin, Estelle McLean

Collections

Karonga -District-wide Combined / Harmonized Datasets Karonga HDSS

Metadata

Documentation in PDF DDI/XML JSON

Created on

Nov 14, 2025

Last modified

Nov 15, 2025

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Date stopped living in previous village 1 (D) (pretodate1)

Data file: combined_tb_cases_controls_final

Overview

Valid: 3254

Type: Discrete

Start: 644

End: 653

Width: 10

Range: -

Format: character

Questions and instructions

Literal question

Date stopped living in previous village 1

Imputation and derivation

Derivation

variable: pretomm1 [month of previous village stop] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2, tb_tbo, tb_tboto2007, tbold_control)
variable: pretoyear1 [year of previous village stop] (table[s]: tb_tbx, tb_tbxto2007, tbold_part1/2, tb_tbo, tb_tboto2007, tbold_control)

recode pretomm1 0=1
recode pretoyear1 9999=. 0=.
gen pretodate1=mdy(pretomm1,15,pretoyear1) if pretomm1~=. & pretoyear1~=.
replace pretodate1=mdy(6,15,pretoyear1) if pretomm1==. & pretoyear1~=.

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