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National Adult Tobacco Survey of Cambodia 2011

Cambodia, 2010
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Reference ID
KHM-NIS-NATSC-2011-v01
Producer(s)
National Institute of Statistics
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Jan 07, 2021
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Jan 08, 2021
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  • Identification
  • Version
  • Scope
  • Coverage
  • Producers and sponsors
  • Sampling
  • Survey instrument
  • Data collection
  • Data processing
  • Data appraisal
  • Data Access
  • Disclaimer and copyrights
  • Contacts
  • Metadata production

    • Identification

    Survey ID number

    KHM-NIS-NATSC-2011-v01
    Title

    National Adult Tobacco Survey of Cambodia 2011
    Country
    Name Country code
    Cambodia KHM
    Study type

    Other Household Health Survey [hh/hea]
    Series Information

    The 2011 National Adult Tobacco Survey of Cambodia is the second survey of Cambodia conducted by the National Institute of Statistics (NIS).
    Abstract

    This National Adult Tobacco Survey promotes capacity building within the Kingdom of Cambodia for future tobacco research and long-term tobacco control strategies.
    Kind of Data

    Sample survey data [ssd]
    Unit of Analysis

    Individuals

    Households

    Version

    Version Description
    • v01: Edited and anonymized data.
    Version Date

    2011-08-25

    Scope

    Notes

    Form 2 (Core Questionnaire) of NATSC Cambodia consists of 11 sections. Eight of these sections contain GATS survey items that have been adapted for use in Cambodia. A general description of each section that contains GATS items is described below (the questionnaire is provided in Appendix A):

    • Tobacco smoking: Patterns of use (daily consumption, less than daily consumption, not at all), former/past tobacco consumption, age of initiation of daily smoking, consumption of different tobacco products, (cigarettes, pipes, cigars and other smoked tobacco), nicotine dependence, frequency of quit attempts.

    • Smokeless tobacco: Patterns of use (daily consumption, less than daily consumption, not at all), former/past use of smokeless tobacco, age of initiation of daily use of smokeless tobacco, consumption of different smokeless tobacco products (snuff, chewing tobacco, betel quid, etc.), nicotine dependence, frequency of quit attempts.

    • Cessation: Advice to quit smoking by health care provider, method used to try to stop smoking. Similar information is asked for cessation on smokeless tobacco as well.

    • Secondhand smoke: Smoking allowed in the home, exposure to secondhand smoke at home, indoor smoking policy at work place, exposure during the last 30 days in: work place, government buildings/offices, health care facilities, restaurants, public transportation.

    • Economics: Type of tobacco product and quantity bought, cost of tobacco product(s), brand, type of product purchased, and source of tobacco products.

    • Media: Exposure to advertisement (television, radio, billboards, posters, newspapers/magazines, cinema, internet, public transportation, public walls, others); exposure to sporting events connected with tobacco; exposure to music, theatre, art or fashion events connected with tobacco; exposure to tobacco promotion activities; reaction to health warning labels on cigarette packages; exposure to anti-tobacco advertising and information. Similar questions are included for smokeless tobacco as well. The reference period for the questions in this section is 30 days.

    • Knowledge, attitudes and perceptions: Knowledge about health effects of both smoking and smokeless tobacco.

    In sum, NATSC 2011 survey items were designed from several sources of input: 1) GAT items, 2) focus groups conducted on tobacco and health issues in rural and urban centers, 3) survey research done as part of the TCLT program, and 4) consultation with local nongovernmental organizations that had conducted provincial surveys on tobacco use. Since the multidisciplinary group who designed the survey included both English and Khmer speaking investigators, there was need for translation from a working English document. The written survey items were translated and back-translated to verify content, criteria and semantic equivalence by bilingual and monolingual experts who used the methods described by Flaherty et al. Pre-testing among subjects in urban and rural centers was also done and the findings were used to refine the final wording of the NATSC survey.
    Topics
    Topic Vocabulary URI
    HEALTH [8] CESSDA http://www.nesstar.org/rdf/common
    LABOUR AND EMPLOYMENT [3] CESSDA http://www.nesstar.org/rdf/common
    EDUCATION [6] CESSDA http://www.nesstar.org/rdf/common

    Coverage

    Geographic Coverage

    The sample was designed to provide estimates of the indicators at the national level, for urban and rural areas, and for 12 individual provinces: Banteay Mean Chey, Kampong Cham, Kampong Chhnang, Kampong Spueu, Kampong Thum, Kandal, Kaoh Kong, Phnom Penh, Prey Veaeng, Pousat, Svay Rieng, and Takaev and for the following 5 groups of provinces:

    I. Bat Dambang and Krong Pailin

    II. Kampot, Krong Preah Sihanouk, and Krong Kaeb

    III. Kracheh, Preah Vihear, and Stueng Traeng

    IV. Mondol Kiri and Rotanak Kiri

    V. Otdar Mean Chey and Siem Reab.
    Geographic Unit

    The TCLT has 2 strata and 12 domains:

    I. Strata:

      Cambodia Urban and Cambodia Rural

    II. Domains

    1. Banteay MeanChey

    2. Kampong Cham

    3. Kampong Chhnang

    4. Kampong Spue

    5. Kampong Thum,

    6. Kandal,

    7. Koah Kong

    8. Phnom Penh

    9. Prey Veang

    10. Pousat,

    11. Svay Rieng

    12. Takaev
    Universe

    The study covered all members of resident households in Cambodia.

    Producers and sponsors

    Primary investigators
    Name Affiliation
    National Institute of Statistics Ministry of Planning
    Producers
    Name Role
    Word Health Organazation Overall supervision
    National Institute of Health technical assistance
    Southeast Asia Tobacco Control Alliance technical assistance
    Funding Agency/Sponsor
    Name Role
    Word Health Organazation Funding
    Loma Linda University Funding
    Other Identifications/Acknowledgments
    Name Affiliation Role
    Pramil Singh Field Director Study Investigator
    National Institute of Statistics Ministry of Planning, Cambodia Field data collection
    Dr.Daravuth WHO Study Investigator
    Dr.Mom Kong Loma Linda University Questionaire design
    Ms.Bungon Ritthiphakdee SEATCA Technical report

    Sampling

    Sampling Procedure

    The sample population was representative of 12 individual provinces and five groups of provinces. The sample population was stratified in three stages. Initially, the whole sample population was divided by domain: urban and rural then by other criteria. All potential participants from each selected household were interviewed. In consideration of sampling techniques and the sample size (about 15,615 eligible participants 15 years of age and older), this survey report is considered a nationally representative survey of tobacco use among the general populations within the Royal Cambodian Kingdom.

    (Please see technical documents for detail on Sampling Design and Sample Size in PDF format).
    Response Rate

    The end result of all interviewing yielded a 97% percent response rate.
    Weighting

    A list of households was compiled for every sample village (or segment of sample village) and was necessary

    to select sample households for use as an input to derive household weights. Because the sample was stratified by domain, it is not self-weighting. For reporting the national level results, sample weights were used. Variable weight is to be used to weigh records at the individual level.

    Survey instrument

    Questionnaires

    Two main questionnaires were canvassed for this survey. Form 1 (Listing of Households), Form 2 (Core Questionnaire)

    1. Form 1 was filled up for the listing of households in every sample village (or segment of sample village) only.

    2. Form 2 contains about 103 items including demographic characteristics, tobacco use, knowledge and attitudes about tobacco use, exposure to second hand smoke, smoking cessation activities, lifestyle habits, exposure to tobacco media advertisements, and other miscellaneous questions. Information was collected from sample households within sample village (or segment of sample village).

    The contents of the Form 1 (Listing of Household) and Form 2 (Core Questionnaire) may be indicated by the following list of items of information to be collected for each sample village through the questionnaires:

    I. Face Page

    II. Demographic characteristics such as age, gender, marital status, ethnicity,

             literacy, education, occupation, and income  (question number 1-19)

    III. Tobacco use

    · Smoking cigarettes (question number 20-36)

    · Chewing tobacco (question number 37-47)

    · Smoking pipe (question number 48-60)

    · Age at initiation (question number 61-64)

    · Reasons for starting/continuing to use tobacco (question number 65-66)

    IV. Knowledge and Attitudes about tobacco use

    · Knowledge of harmful effects (question number 67-71)

    · Attitudes about tobacco use (question number 72)

    · Attitudes about tobacco use in the community (question number 73-74)

    · Attitudes about anti-tobacco policies (question number 75-76)

    · Attitudes about addiction (question number 77)

    V. Passive smoking (question number 78-80)

    VI. Smoking cessation (question number 81-88)

    VII. Lifestyle

    · Anthropometrics (question number 89-90)

    · Diet (question number 91)

    · Health status (question number 92-95)

    · Access to health care (question number 96)

    · Women's health (question number 97-98)

    · Children in the Household

    VIII. Media (question number 99-102)

    IX. Miscellaneous questions (question number 103)

    Data collection

    Dates of Data Collection
    Start End
    2010-09-12 2010-10-15
    Data Collectors
    Name Affiliation
    National Institute of Statistics Ministry of Planning
    Planning Provincial Department Ministry of Planning
    Supervision

    In general, one supervisor is assigned to supervise several interviewers during the field operations. The major duties and responsibilities of supervisor in relation to the work of interviewers are the follows:

    The supervisor is responsible for ensuring that all the interviewers do the listing and interview work satisfactorily in time, effectively and completely in the selected areas.

    The supervisor is required to check all the questionnaires filled by interviewers.

    The supervisor visits the enumeration area to check the complete questionnaires and re-interview a few sample households to check whether the information the interviewers have collected are accurate, reliable and valid or not.

    The supervisor may provide to interviewers all necessary field supplies and questionnaires for fieldwork operation etc.

    The supervisor serves as a link between interviewers and survey coordinators. The supervisor must inform any problem or difficulty that you or interviewers encounter during the fieldwork operation and then deal with the problems. The supervisor must help interviewers assigned under you establish contact with village chiefs, commune chiefs, and other authorized representatives of the village, commune etc.

    The supervisor has to prepare a time schedule for meeting all interviewers at their respective assigned villages for checking the work done etc.
    Data Collection Notes

    A total of 86 interviewing staff and their supervisors were recruited and trained by the National Institute of Statistics and the Ministry of Planning. All staff members hired for data collection activities were trained covering the interview process (concepts, definitions) and filling out the questionnaires. All training of participating staff was completed within five days.

    Data processing

    Data Editing

    Manual processing of questionnaires verified status of completeness, correctness, and consistency of the data entries. The coding classification of Occupations and

    Industries was used and were developed for the Cambodian National Tobacco Survey. The coding and classification scheme were based on the UN International Standard Occupations Classification (ISOC) and UN International Standard Industrial Classification (ISIC) systems, respectively. Manual editing and coding were performed by four persons (one supervisor and three processors) all of them from NIS. They participated in editing and coding of many surveys conducted by NIS.

    Data appraisal

    Estimates of Sampling Error

    Substantial differences (sampling error of > 10%) results in the addition of sample points and subjects on a per domain basis until the comparability with current national data is achieved

    Data Access

    Access authority
    Name Affiliation URL Email
    Director General National Instistute of Statistics www.nis.gov.kh sansythan@nis.gov.kh
    Confidentiality
    Is signing of a confidentiality declaration required? Confidentiality declaration text
    yes All survey participants provided their approval and were assured that any information provided during the 2011 National Adult Tobacco Survey of Cambodia will be held confidential and not be released. All participants were consented and informed that their information will be held confidential and used to produce statistical reports defining the scale of national tobacco use, understanding the effects of tobacco use, and to monitor tobacco use that will contribute to the development of a strategic national tobacco policy. All participants were assured that their information would not be used against them such as identifying persons who failed to pay taxes or for any other legal purpose.
    Access conditions

    1. The data and other materials will not be redistributed or sold to other individuals, institutions, or organizations without the written agreement of the National Institute of Statistics.

    2. The data will be used for statistical and scientific research purposes only. They will be used solely for reporting of aggregated information, and not for investigation of specific individuals or organizations.

    3. No attempt will be made to re-identify respondents, and no use will be made of the identity of any person or establishment discovered inadvertently. Any such discovery would immediately be reported to the National Institute of Statistics.

    4. No attempt will be made to produce links among datasets provided by the National Institute of Statistics, or among data from the National Institute of Statistics and other datasets that could identify individuals or organizations.

    5. Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the National Institute of Statistics will cite the source of data in accordance with the Citation Requirement provided with each dataset.

    6. An electronic copy of all reports and publications based on the requested data will be sent to the National Institute of Statistics.
    Citation requirements

    "National Institute of Statistics of the Ministry of Planning, National Adult Tobacco Survey of Cambodia 2011 (NATSC 2011 ), Version 01 of the public use dataset provided by World Health Organization and National Institute of Statistics, www.who.org.kh or www. nis.gov.kh"

    Disclaimer and copyrights

    Disclaimer

    The user of the data acknowledges that the National Institute of Statistics, Cambodia bears no responsibility for use of the data or for interpretations or inferences based upon such uses.
    Copyright

    (c) 2011, National Institute of Statistics

    Contacts

    Contacts
    Name Affiliation Email URL
    Director ICT National Institute of Statistic slundy@nis.gov.kh www.nis.gov.kh
    WHO World Health Organization yeldatravuth@gmail.com www.who.ong.kh

    Metadata production

    DDI Document ID

    DDI-KHM-NATSC-2011-V1.0
    Producers
    Name Affiliation Role
    Mao Chhem National Institute of Statistics Archivist
    Date of Metadata Production

    2011-09-12

    Metadata version

    DDI Document version

    Version1.0 (September2011). This is the first documentation.
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