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Type: Journal article
Title: The Second National Oral Health Survey of Vietnam, 1999: background and methodology
Author: Roberts-Thomson, K.
Spencer, A.
Do, L.
Szuster, F.
Hai, T.
Nguyen, T.
Citation: New Zealand Dental Journal, 2010; 106(2):61-66
Publisher: New Zealand Dental Association
Issue Date: 2010
ISSN: 0028-8047
Statement of
K. F. Roberts-Thomson, A. J. Spencer, L. G. Do, F. S. Szuster, T. D. Hai, T. T. Nguyen
Abstract: Few high-quality epidemiological surveys of oral health have been conducted in developing countries. A National Oral Health Survey of Vietnam was previously conducted in 1989. OBJECTIVE: To conduct a Second National Oral Health Survey to facilitate planning of preventive and treatment programmes and the dental workforce in Vietnam. DESIGN: The 1999 survey utilised a multistage stratified random sampling strategy to obtain a random sample of the Vietnamese population. The population was stratified by province, urban/rural location and age in order to ensure adequate representation. Participants were clustered into schools (children) or communes (adults). Data were collected through a social survey, and dental examinations were conducted by calibrated examiners. RESULTS: High percentages of the target samples in each stratum were obtained. Inter-examiner and intra-examiner reliability were good to high (kappa: 0.48-0.98). All data were weighted to adjust for the probabilities of selection and known biases to provide unbiased estimates at provincial and national level. CONCLUSION: The National Oral Health Survey of Vietnam was a high-quality epidemiological survey with high participation rates. This was made possible through strong support from the Vietnamese Ministry of Health and regional and local officials.
Keywords: Humans
Observer Variation
Physical Examination
Data Collection
Dental Health Surveys
Sampling Studies
Sample Size
Age Distribution
Research Design
Middle Aged
Young Adult
Surveys and Questionnaires
Rights: Copyright status unknown
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