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Reference ID
MWI-MEIRU-VACCINATION-2002-v1
Producer(s)
Professor Amelia (Mia) Crampin
Collections
Karonga HDSS Combined / Harmonized Datasets
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Created on
Nov 14, 2025
Last modified
Nov 18, 2025
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First interview date when reported had polio1 (D) (p0fyintdate)

Data file: vacc_data_selected_BEST

Overview

Valid: 20382
Type: Discrete
Start: 368
End: 377
Width: 10
Range: -
Format: character

Description

Definition
First interview date when reported had polio1

Imputation and derivation

Derivation
variable: p0intdate (table[s]: all_vaccination_records [derived table])
variable: p0yn (table[s]: all_vaccination_records [derived table])

*calculate first interview date where card seen and vaccine recorded as yes
bys ident: egen tempC=min(`vacc'intdate) if card==1 & `vacc'yn==1
bys ident: egen tempNC=min(`vacc'intdate) if card==2 & `vacc'yn==1
bys ident: egen `vacc'fyintdate=min(tempC)
bys ident: egen tempNCd=min(tempNC)
replace `vacc'fyintdate=tempNCd if `vacc'fyintdate==. & tempNCd~=.
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