LIS Latent TB infection phase 1 and 2 2009

Malawi, 2008 - 2012

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Reference ID

MWI-MEIRU-TB-LIS-2008-v01

Producer(s)

Dr. Anne Ben-Smith, Prof. Amelia C Crampin

Collections

Karonga HDSS Karonga -District-wide

Metadata

Documentation in PDF DDI/XML JSON

Created on

Nov 14, 2025

Last modified

Nov 15, 2025

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25855

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Eye problems severity (visionsev)

Data file: tb_tbi

Overview

Valid: 143

Invalid: 2541

Type: Discrete

Decimal: 0

Width: 1

Range: 1 - 9

Format: Numeric

Questions and instructions

Literal question

problems with your vision, How severe

Categories

Value	Category	Cases
1	Blurred	117	81.8%
2	Light but no features	19	13.3%
3	No perception of light	7	4.9%
8	Unknown	0	0%
9	Missing	15
Sysmiss		2526

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.

Others

Notes

Available in versions -,, 01, 03, 04, 09, 10, 12
Must be blank of Eye problems <> 1

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