Journal List > J Korean Acad Oral Health > v.37(3) > 1057566

Choi, Jin, Kim, Kim, Kim, and Park: Comparison between the National Oral Health Survey Systems of the United States and South Korea

Abstract

In Korea, two kinds of National oral health surveys have been conducted to develop various oral health indices during the past decade. The system still needs to be improved further in terms of quality control for the examination system, data management, personnel empowerment, etc. Therefore, this study compares the National Oral Health Survey system of the United States (US) with that of South Korea. The US national surveys related to oral health were set from the 1970s, whereas Korea’s national surveys have been initiated only recently; consequently, the US system is well organized and systematically managed by the professional personnel in governmental institutes, such as the Division of Oral Health in Centers for Disease Control. Furthermore, this study examines the scope of the examiner training program, and the methods for developing and implementing a standardized examination environment, data quality control, a data input system with automatic error checking, and data back up in the US. Considering the various factors involved in conducting nationwide epidemiological surveys as mentioned above, the structure and implementation methods of oral surveys in Korea clearly need to be improved.

References

1. Ministry of Health and Welfare. 2000 Korean National Oral Health Survey. Seoul: Ministry of Health & Welfare;2001. p. 25–42.
2. Ministry of Health and Welfare. 2003 Korean National Oral Health Survey: III Survey Results. Seoul: Ministry of Health and& Wel-fare;2003. p. 5–40.
3. Ministry of Health and Welfare. 2006 Korean National Oral Health Survey: II Survey Results. Seoul: Ministry of Health & Wel-fare;2007. p. 3–49.
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Fig. 1.
National survey pathways in United States.
jkaoh-37-167f1.tif
Table 1.
The change of National Health and Nutrition Examination Survey in United States
Abbreviations Periods Target ages
NHES I 1960-1962 18-79 years
NHES II 1963-1965 6-11 years
NHES III 1966-1970 12-17 years
NHANES I 1971-1975 1-72 years
NHANES II 1976-1980 6 months-74 years
HHANES 1982-1984 6 months-74 years
NHANES III 1988-1994 2 months ≤

NHES, National Health Examination Survey; NHANES, National Health and Nutrition Examination Survey; HHANES, Hispanic Healthand Nutrition Examination Survey.

Table 2.
Comparison of National Oral Health Survey system between United States and South Korea
United States South Korea
Performance system of the National Oral Health Survey
Organization -NHANES is done at federal government level -Main agency, NCHS closely cooperates with two other agencies, NIDCR and DOH of federal government -Cooperates with private organizations because there is no exclusive dental health agency in government
Sampling method -Oversample in specific ethnic/age/income groups according to the times -Need to oversample in specific age group
Result consultation -Provide information about the need for dental care or not, except for treatment plan -No specific guideline
Qualitative management for National Oral Health Survey
Data quality control -Trained exclusive examiners (dentist, oral hygienist) -Professional traing session (ITS, FTS) -Periodic standardization examination (PSE) -Service company (Westat) support -Public health dentists -Difficult to control data quality due to too many examiners (30 examiner, 4 team)
Infection control -Detailed guideline on infection control -Disposable lab jackets -Rubber-globe, one-time use -MEC equipped sterilizer (SpeedClave) -No guideline on infection control -Non disposable lab jacket -Poly glove with poor-wear sensation -MEC not-equipped sterilizer
Recording data control l -Dental recorder enters data directly into a computer S/W (ISIS) during examination -Dental examiner confirms data entered using secondar PC monitor -ISIS with data-input error check function -Recorder puts the number in the database field after dental examination -No data-input error check function
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