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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
Documentation in PDF DDI/XML JSON
Created on
Nov 14, 2025
Last modified
Nov 19, 2025
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Hypertensive level (4 categories) (D) (ht)

Data file: ncd_combined_data_all

Overview

Valid: 30554
Invalid: 21
Type: Discrete
Decimal: 0
Start: 187
End: 187
Width: 1
Range: 0 - 3
Format: Numeric

Questions and instructions

Categories
Value Category Cases
0 No 26726
87.5%
1 mild: dia90+sys140+ 2405
7.9%
2 moderate: dia100+sys160+ 942
3.1%
3 Severe: dia110+sys180+ 481
1.6%
Sysmiss 21
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: systolic [average systolic result] (table[s]: derived variable)
variable: diastolic [average diastolic result] (table[s]: derived variable)
Systolic and diastolic blood pressure measures are combined into a hypertension variable with 4 categories.
gen ht=0 if diastolic<90 & systolic<140
replace ht=1 if (diastolic>=90 & diastolic~=.) | (systolic>=140 & systolic~=.)
replace ht=2 if (diastolic>=100 & diastolic~=.) | (systolic>=160 & systolic~=.)
replace ht=3 if (diastolic>=110 & diastolic~=.) | (systolic>=180 & systolic~=.)
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