title: ICS-II USA research design and methodology.
abstract: The purpose of the WHO-sponsored International Collaborative Study of Oral Health Outcomes (ICS-II) was to provide policy-markers and researchers with detailed, reliable, and valid data on the oral health situation in their countries or regions, together with comparative data from other dental care delivery systems. ICS-II used a cross-sectional design with no explicit control groups or experimental interventions. A standardized methodology was developed and tested for collecting and analyzing epidemiological, sociocultural, economic, and delivery system data. Respondent information was obtained by household interviews, and clinical examinations were conducted by calibrated oral epidemiologists. Discussed are the sampling design characteristics for the USA research locations, response rates, samples size for interview and oral examination data, weighting procedures, and statistical methods. SUDAAN was used to adjust variance calculations, since complex sampling designs were used.
authors.affiliation: Department of Health Services, School of Public Health, University of California, Los Angeles 90095, USA.
authors.forename: H
authors.initials: H
authors.lastname: Rana
authors.forename: R M
authors.initials: RM
authors.lastname: Andersen
authors.forename: T T
authors.initials: TT
authors.lastname: Nakazono
authors.forename: P L
authors.initials: PL
authors.lastname: Davidson
mesh_terms: D000328:Adult; D000368:Aged; D015142:Baltimore; D003752:Dental Health Services / Q000706:statistics & numerical data / Q000600:supply & distribution*; D018865:Dental Research / Q000379:methods*; D015438:Health Behavior / Q000208:ethnology; D006302:Health Services Research / Q000379:methods*; D006801:Humans; D008960:Models, Psychological; D015337:Multicenter Studies as Topic; D015999:Multivariate Analysis; D017063:Outcome Assessment, Health Care; D012107:Research Design; D012494:Sampling Studies; D015983:Selection Bias; D015206:Southwestern United States; D013223:Statistics as Topic; D013781:Texas; D014481:United States; D016549:United States Indian Health Service; D014944:World Health Organization