Global Youth Tobacco Survey 2019
Chad, 2019
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TCD_2019_GYTS_v01_M
Global Youth Tobacco Survey 2019
GYTS 2019
| Name | Country code |
|---|---|
| Chad | TCD |
Other Household Survey [hh/oth]
This is the second GYTS conducted by Chad.
The GYTS is a school-based survey which uses a self-administered questionnaire to monitor tobacco use among youth and to guide the implementation and evaluation of tobacco prevention and control programmes.
Sample survey data [ssd]
Individuals
Version
Public-use dataset
2019
Scope
GYTS is composed of 43 "core" questions designed to gather data on the following seven domains:
- Knowledge and attitudes of young people towards cigarette smoking
- Prevalence of cigarette smoking and other tobacco use among young people
- Role of the media and advertising in young people’s use of cigarettes
- Access to cigarettes
- Tobacco-related school curriculum
- Environmental tobacco smoke (ETS)
- Cessation of cigarette smoking
Countries may add addtional optional questions, such as on shisha use, smokeless tobacco use or e-cigarettes, or country-specific questions.
| Topic | Vocabulary |
|---|---|
| Global Youth Tobacco Survey (GYTS) | Survey |
Coverage
National
School-going adolescents aged 13-15 years.
Producers and sponsors
| Name |
|---|
| National Program Against Tobacco, Drugs and Alcohol |
| Ministry of Public Health |
| Name | Abbreviation |
|---|---|
| World Health Organization | WHO |
| US Centers for Disease Control and Prevention | CDC |
Sampling
GYTS uses a global standardized methodology that includes a two-stage sample design with schools selected with a probability proportional to enrollment size. The classes within selected schools are chosen randomly and all students in selected classes are eligible to participate in the survey.
A total of 2,296 eligible students in 6 - 3 ème completed the survey, of which 929 were aged 13-15 years.
The overall response rate was 49.7%
The weighting formula used is:
W=W1 W2 f1 f2 f3*f4
The list below shows what each variable in the formula represents.
W1 - The inverse of the probability of selecting the school
W2 - The inverse of the probability of selecting the class within the school
f1 - a school-level nonresponse adjustment factor calculated by school size category (small, medium, large)
f2 - a class adjustment factor calculated by school
f3 - a student-level nonresponse adjustment factor calculated by class
f4 - a post stratification adjustment factor calculated by gender and grade
Data collection
| Start | End |
|---|---|
| 2019 | 2019 |
- self-administered
Data processing
All data processing (scanning, cleaning, editing, and weighting) was conducted at the US Centers for Disease Control.
Data Access
The user undertakes:
(1) to acknowledge the data source.
(2) to share any planned publications with WHO prior to publication.
(3) to offer co-authorship of any reports or publications using the survey results to the coordinator of the survey.
(4) to use the data for non-commercial, not-for-profit public health purposes only.
Publications based on GYTS data should use the following acknowledgement:
"This paper uses data from the Global Youth Tobacco Survey (GYTS). GYTS is supported by the World Health Organization and the US Centers for Disease Control and Prevention."
Disclaimer and copyrights
The data is being distributed without warranty of any kind. The responsibility for the use of the data lies with the user. In no event shall the World Health Organization be liable for damages arising from its use.
Contacts
| Name | Affiliation | URL | |
|---|---|---|---|
| NCD Surveillance, Monitoring and Reporting Team | World Health Organization | ncdmonitoring@who.int | https://www.who.int/teams/noncommunicable-diseases/surveillance/systems-tools/global-youth-tobacco-survey |
Metadata production
DDI_TCD_2019_GYTS_v01_M
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Alena Usava | World Health Organization | Documentation of data | |
| Melanie Cowan | World Health Organization | Supervision and review of metadata and documentation of study | |
| Development Economics Data Group | DECDG | The World Bank | Metadata adapted for World Bank Microdata Library |
2021-12-13
Metadata version
Identical to a metadata (TCD_2019_GYTS_v01) published on WHO NCD microdata repository (http://extranet.who.int/ncdsmicrodata/index.php/catalog). Some of the metadata fields have been edited.