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NCD Combined analytical dataset

Malawi, 2013 - 2016
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Reference ID
MWI-MEIRU-NCD-2013-v1.0
Producer(s)
Prof Moffat Nyirenda, Prof Shabbar Jaffar
Collections
Combined / Harmonized Datasets Karonga HDSS Lilongwe HDSS
Metadata
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Created on
Nov 14, 2025
Last modified
Nov 19, 2025
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summary variable of number of cigarettes smoked (D) (smoker)

Data file: ncd_combined_data_all

Overview

Valid: 30575
Invalid: 0
Type: Discrete
Decimal: 0
Start: 67
End: 67
Width: 1
Range: 0 - 3
Format: Numeric

Questions and instructions

Categories
Value Category Cases
0 Never 28480
93.1%
1 Former 757
2.5%
2 <6 cig/week 177
0.6%
3 6+ cig/week 1161
3.8%
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

Imputation and derivation

Derivation
variable: resmoke [ever smoked] (table[s]: ncdk_personal, ncdl_personal)
variable: cigweek [av. cigs per week] (table[s]: derived variable)
Smoking status (resmoke) and estimated number of cigarettes smoked per week for current smokers (cigweek) are combined to generate a summary variable.
gen smoker=0 if resmoke==1
replace smoker=2 if cigweek<6 & cigweek~=. & resmoke==3
replace smoker=3 if cigweek>=6 & cigweek~=. & resmoke==3
replace smoker=1 if resmoke==2
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