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National Tobacco Prevalence Survey 2005

Cambodia, 2005
Reference ID
KHM_2005_NTPS_v01_M
Producer(s)
National Institute of Statistics
Metadata
DDI/XML JSON
Created on
Nov 21, 2011
Last modified
Mar 29, 2019
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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_2005_NTPS_v01_M
    Title

    National Tobacco Prevalence Survey 2005
    Subtitle

    Tobacco Control for Leadership Training
    Translated Title

    Kar Stung Mati 2005 Robas Kumrong Bandos Bandal knongkar Tob Skat Kar Preubras Thnam Chuk
    Country
    Name Country code
    Cambodia KHM
    Study type

    Other Household Health Survey [hh/hea]
    Series Information

    Tobacco Control for Leadership Training 2005 is the second survey of Cambodia conducted by the National Institute of Statistics (NIS). The survey was undertaken as part of a research project callled "Tobacco Control for Leadership Training Program (TCLT)" that was sponsored by Loma Linda Univesity, USA in collaboration with the Adventist Development and Relief Agency (ADRA), Cambodia. Due to time constraints, the TCLT program was encouraged to contract data collection activities as part the survey process to a local contractor (NIS) in cooperation with the TCLT program NIS staff.
    Abstract

    The objective of the 2005 National Tobacco Prevalence Survey was to access and report the consumption of tobacco products in order to evaluate any potential adverse effects resulting from the sales, production and advertisement of tobacco products within the national Cambodian population. A specific aim of the survey was to evaluate tobacco consumption of tobacco products then previously performed.
    Kind of Data

    Sample survey data [ssd]
    Unit of Analysis

    Individual, Household

    Version

    Version Description

    Version 01: Edited and anonymized data.
    Version Date

    2009-04-25

    Scope

    Notes

    The scope of NCTS 2005 includes the following modules of its core questionnaire:

    1. Demographic information
    2. Tobacco use including smoking cigarettes, chewing tobacco, smoking pipe, and age at initiation, reasons for starting/continuing to use tobacco
    3. Knowledge and attitudes about tobacco use including knowledge of harmful effects, attitudes about tobacco use, and attitudes about tobacco use in the community, attitudes about anti-tobacco policies, and attitudes about addiction.
    4. Passive smoking
    5. Smoking cessation
    6. Lifestyle including anthropometrics, diet, health status, access to health care, and women's health
    7. Media
    8. Miscellaneous questions
    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

    National Urban/ Rural areas 12 individual provinces including: Banteay Mean Chey, Kampong Cham, Kampong Chhnang, Kampong Spueu, Kampong Thum, Kandal, Kaoh Kong, Phnom Penh, Prey Veaeng, Pousat, Svay Rieng and Takaev Five (5) groups of provinces including: Bat Dambang and Krong Pailin; Kampot, Krong Preah Sihanouk, and Krong Kaeb; Kracheh, Preah Vihear, and Stueng Traeng; Mondol Kiri and Rotanak Kiri; and 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 survey was designed to cover all private households including single member households. Excluded are households such as military barracks, prisons, hospitals and boarding houses.

    Producers and sponsors

    Primary investigators
    Name Affiliation
    National Institute of Statistics Ministry of Planning
    Funding Agency/Sponsor
    Name Role
    Adventist Development and Relief Agency Cambodia Funding
    Other Identifications/Acknowledgments
    Name Affiliation Role
    Mr. Mark Schwisow ADRA Cambodia Country Director
    Pramil Singh Field Director Study Investigator
    Linda H. Ferry ADRA Cambodia Principal Investigator
    Synnove Knutsen ADRA Cambodia Program Manager
    Khieng Sothy ADRA Cambodia Project Manager
    Dr. Yel Daravuth ADRA Cambodia Co-principal Investigator
    Jaime Lopez ADRA Cambodia Data analysis and editing of the report.
    National Institute of Statistics Ministry of Planning, Cambodia Participation in data collection

    Sampling

    Sampling Procedure

    The sample population consisted of 13,988 participants aged 18 years and old from 6,254 households that comprised of 434 sample clusters. The 434 sample cluster populations consisted of 64 urban area and 370 rural or rural villages.

    In each sample cluster, 11 households were selected at random from each urban area and 15 households were selected at random from sample villages in rural areas.

    Seventeen sampling domains were considered in separate strata at the stage of sampling selection of clusters.

    The document "Sampling Design and Sample Size" discusses the design of NTPS 2005 in detail.
    Response Rate

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

    Because the sample was stratified by domain, it is not self-weighting. Sample weights based on the design of the survey were calculated and used to come up with national level estimates. The variable WEIGHT in the dataset is used to blow up individual level figures.

    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
    2005-04-02 2005-04-30
    Data Collectors
    Name Affiliation
    National Institute of Statistics 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.

    During the data collection process, a Primary Sampling Unit (PSU) was randomly selected from each sampling village using the 1998 Census framework. This allowed researchers to generate a field listing of potential participant households. The PSU was based on the total number of EA divided within the village. In order finalize sampling methodology; it was necessary to carry out a complete canvass of the EA in order to generate a complete and accurate listing of each household. The procedure included the use of a national demographic map, which included prominent landmarks of each sampled EA. In addition, a sketch map was also prepared showing all residential households in each EA that was used by interviewing staff.

    Originally, a household was included through a systematic listing through a prepared pathway to ensure that all targeted households were accounted for by using the household registry form. The actual data collection was performed through the use of a prepared questionnaire from each of the rural or urban household. All residential members of each household were included in the survey process. The interview process consisted of two separate interviews that included an individual interview of the head of household or available adult (for demographic purposes) and a tobacco consumption interview of the available adults aged 18 years and older.

    Data processing

    Data Editing

    The completed questionnaires were collected by supervisors on the due date and submitted to offices of the Central NIS. After careful examination, each questionnaire was stored for entry. The editing and coding of each questionnaire was performed manually and submitted for entry.

    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.

    A verification software package, known as the Census and Survey Processing System (CSPro), was used to verify data entry, correction of inconsistencies and tabulation of survey results. A single supervisor and four data entry personnel performed this process of data process after being trained over the course of four days on entry verification, completeness of entry, correction of entry errors, and coding

    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 sythan@forum.org.kh
    Director, ICT Department National Instistute of Statistics www.nis.gov.kh slundy@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 National Tobacco survey 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. All information collected in the Survey from the representatives of sample villages, sample households and a nationally representative sample of targeted populations will be treated as strictly confidential and used for statistical purposes to define scale of the problem of smoking, understand the effects of tobacco, monitor and analyze tobacco prevalence control in Cambodia in order to develop or accelerate national strategic policy on tobacco consumption. Information supplied by any person will not be used against him for taxation, investigation or 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

    Use of the dataset must be acknowledged using a citation which would include:

    • the Identification of the Primary Investigator
    • the title of the survey (including country, acronym and year of implementation)
    • the survey reference number
    • the source and date of download

    Example:

    National Institute of Statistics (NIS), Cambodia. National Tobacco Prevalence Survey 2005. Ref. KHM_2005_NTPS_v01_M. Dataset downloaded from http://www.nis.gov.kh/nada/index.php/catalog on [date].

    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.

    Contacts

    Contacts
    Name Affiliation Email URL
    Director, Demographic Statistics Census and Survey Department National Institute of Statistics census@camnet.com.kh www.nis.gov.kh
    Data User Service Center National Institute of Statistics dusc@nis.gov.kh www.nis.gov.kh
    Director, ICT Departmen National Institute of Statistics lundysaint@yahoo.com www.nis.gov.kh/nada

    Metadata production

    DDI Document ID

    DDI_KHM_2005_NTPS_v01_M
    Producers
    Name Affiliation Role
    Panhara Oukchay National Insitute of Statistics Documenter
    Saint Lundy National Insitute of Statistics Documenter
    Chao Pheav National Insitute of Statistics Documenter
    Accelerated Data Program International Household Survey Network Ediiting for IHSN Survey Catalog
    Date of Metadata Production

    2009-09-28

    Metadata version

    DDI Document version

    Version 1.0 - National Institute of Statistics - Original documentation of the study.
    Version 2.0 - Edited version by ADP based on Version 1.0 of NIS downloaded from http://www.nis.gov.kh/nada/index.php/catalog on 17 May 2013.
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