Codes and Frequencies
Explore how IPUMS created this variable
class Wgvision : public Editor {
public:
Wgvision(VarPointer varInfo) : Editor(varInfo) {}
void edit() {
long a = getRecoded();
switch (dataSet) {
case dataset_id::tt2011a: {
if (TT2011A_0424() == 2 && TT2011A_0431() == 9)
a = 1;
if (TT2011A_0424() == 9 && TT2011A_0431() == 9)
a = 8;
} break;
}
setData(a);
}
};
Description
WGVISION indicates the person's level of difficulty in seeing, even while wearing glasses.
Comparability — Index
|
GENERAL Brazil |
Indonesia Zambia |
Zimbabwe |
Comparability — General
The coding structure in WGVISION follows recommendations from the United Nations Washington Group on Disability Statistics, which developed a set questions to assess degrees of functional difficulty across a range of basic activities. The questions aim to circumvent the stigma and ambiguity often associated with traditional yes-no questions on disability, which are harder to interpret with respect to expectations of functionality.
The Washington Group proposes a framework that identifies four levels of difficulty. Some countries deviate from the recommended four levels. The country specific comparability sections describe how these alternative scales are interpreted and harmonized into WGVISION.
The information on the traditional (yes/no) questions to report a disability in the form of inability to see or limited vision is available in DISBLND.
Comparability — Brazil [top]
Brazil uses the recommended Washington Group categorizations of difficulty.
Comparability — Indonesia [top]
The 2010 sample uses a 3-level scale: no difficulty, slight difficulty, and severe difficulty. In WGVISION, slight difficulty is interpreted as "some difficulty" and severe is harmonized into "cannot do at all" (even though it likely includes those individuals with "a lot of difficulty"). More details are available in the enumeration instructions for Indonesia 2010.
Comparability — Zambia [top]
In 2000, WGVISION is constructed from separate questions about partial or complete loss of sight. Persons who indicated both a partial and a complete loss of sight are classified as "cannot do at all", which may overestimate the difficulty level for some respondents.
Comparability — Zimbabwe [top]
In 2012, the census asks two questions concerning being totally blind or having any difficulty seeing. Persons who have difficulty seeing are classified as "some difficulty", while those who are totally blind are harmonized into "cannot do at all".
Universe
- Brazil 2000: All persons
- Brazil 2010: All persons
- Cambodia 2019: Persons age 5+
- Indonesia 2010: Persons in regular enumeration areas
- Laos 2015: All persons
- Mauritius 2011: All persons
- Mexico 2020: All persons
- Morocco 2014: All persons
- Myanmar 2014: All persons
- Senegal 2013: Residents age 1+ in ordinary households
- South Africa 2011: Persons in private households
- South Africa 2016: Persons age 5+
- Suriname 2012: All persons
- Tanzania 2012: All persons
- Trinidad and Tobago 2011: Persons in private households living in Trinidad and Tobago
- Uganda 2014: Persons age 2+
- Uruguay 2011: All persons
- Vietnam 2009: Persons age 5+
- Vietnam 2019: Persons age 5+
- Zambia 2000: All persons
- Zimbabwe 2012: All persons
Availability
- Brazil: 2000, 2010
- Cambodia: 2019
- Indonesia: 2010
- Laos: 2015
- Mauritius: 2011
- Mexico: 2020
- Morocco: 2014
- Myanmar: 2014
- Senegal: 2013
- South Africa: 2011, 2016
- Suriname: 2012
- Tanzania: 2012
- Trinidad and Tobago: 2011
- Uganda: 2014
- Uruguay: 2011
- Vietnam: 2009, 2019
- Zambia: 2000
- Zimbabwe: 2012
