Table of Contents

Component Description

NHANES is critical for monitoring oral health status, risk indicators for disease, and access to preventive and treatment services. This component will address public health significance in areas of surveillance, prevention, treatment, dental care utilization, health policy, evaluation of Federal health programs, standardization of new methods, and oral health disparities.

Oral health data from NHANES will be used for:

The oral health examination section (OHX) provides information on a number of oral health topics. These topic areas and related target population groups in the OHX section include:

Eligible Sample

All survey participants 1 year and older were eligible for the oral health examination. Participants aged 30 years and older were eligible for the periodontal evaluation if they had at least one tooth (excluding third molars) and did not meet any of the health exclusion criteria. Participants were excluded if they had a heart transplant, have an artificial heart valve or heart disease since birth (not including mitral valve prolapse, or had a bacterial infection of the heart, called bacterial endocarditis.

Protocol and Procedure

All examiners for 2013-14 oral health examination were dentists (D.D.S./D.M.D.) licensed in at least one U.S. state. In 2013-14, the tooth count, dental caries and dental sealants assessments followed the same protocols conducted in 1999-2004 and 2011-2012. The 2013-14 periodontal examination was a full-mouth, six-site per tooth assessment following similar protocols used in 2009-2010 and 2011-12.

Quality Assurance & Quality Control

The quality of data in this survey is controlled by (1) an intense training period for the health technologists who were assigned to conduct the oral health examinations with calibration of dentists prior to the beginning of the survey, (2) periodic monitoring and recalibration of dentists, and (3) periodic retraining of oral health examination teams. The reference examiner visited each team up to three times per year to observe field operations and to replicate 20 to 25 oral health examinations during each visit. The purpose of these “expert replications” is to determine if the dentists are maintaining the examination standards achieved during training and to measure the degree of deviation, if any, from those standards. If the inter-rater correlation is not within acceptable limits, retraining is conducted on site and future monitoring of the field examiner intensified. An annual retraining session for each dental examiner also is conducted by the reference examiner to reinforce existing protocols and to accommodate protocol updates as needed. All oral health training, calibration, and field replicate exams were conducted by the NHANES reference examiner.

Automated data collection procedures for the survey were introduced in NHANES 1999. In the mobile examination centers (MECs), data for the oral health component are recorded directly onto a computerized data collection form. The system is integrated centrally and it allows for ongoing monitoring of much of the data. As part of an on-going quality control practice, all data are reviewed systematically for logical inconsistencies and examiner error. Internal quality control data review indicates that data quality is acceptable.

Data Processing and Editing

Frequency counts were checked, "skip" patterns were verified, and the reasonableness of responses to the questions was reviewed.

Analytic Notes

The oral health data is released in three separate data files as follows:

Oral health data from these 3 files can be linked using the unique survey participant identifier, SEQN. In addition to the oral health examination data, oral health questionnaire data can be found in the oral health section (OHQ) of the NHANES 2013–2014 Household questionnaire. These data may be linked using the unique survey participant identifier, SEQN. Although these data were collected as part of the household questionnaire, if they are merged with the MEC exam data, exam sample weights should be used for the analyses.

Please refer to the Analytic Guidelines on the NHANES website for further details on the use of sample weights and other analytic issues.

If data from this release is combined with oral health data from previous data cycles for analysis, users should understand that methodological differences (in data collection) may exist among similar, earlier assessments and this may bias the analysis conducted.

In 2013-2014, a dental fluorosis assessment was also conducted for participants aged 6-19 years as part of the NHANES oral health exam. The dental fluorosis assessment data are still being evaluated and are not included in this data file.

Codebook and Frequencies

SEQN - Respondent sequence number

Variable Name:
SEQN
SAS Label:
Respondent sequence number
English Text:
Respondent sequence number.
Target:
Both males and females 1 YEARS - 150 YEARS

OHDEXSTS - Overall Oral Health Exam Status

Variable Name:
OHDEXSTS
SAS Label:
Overall Oral Health Exam Status
English Text:
Overall Oral Health Exam Status
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Complete 8633 8633
2 Partial 333 8966
3 Not Done 456 9422
. Missing 0 9422

OHDRCSTS - Recommendation Care Status Code

Variable Name:
OHDRCSTS
SAS Label:
Recommendation Care Status Code
English Text:
Recommendation Care Status Code
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Complete 8938 8938
2 Partial 0 8938
3 Not Done 484 9422
. Missing 0 9422

OHAREC - Overall recommendation for care

Variable Name:
OHAREC
SAS Label:
Overall recommendation for care
English Text:
Overall recommendation for care
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 See a dentist immediately 2 2
2 See a dentist within the next 2 weeks 433 435
3 See a dentist at your earliest convenience 3080 3515
4 Continue your regular routine care 5423 8938
. Missing 484 9422

OHAROCDT - Decayed teeth

Variable Name:
OHAROCDT
SAS Label:
Decayed teeth
English Text:
Decayed teeth
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 2312 2312
2 No 13 2325
. Missing 7097 9422

OHAROCGP - Gum disease/problem

Variable Name:
OHAROCGP
SAS Label:
Gum disease/problem
English Text:
Gum disease/problem
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1868 1868
2 No 12 1880
. Missing 7542 9422

OHAROCOH - Oral hygiene

Variable Name:
OHAROCOH
SAS Label:
Oral hygiene
English Text:
Oral hygiene
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1764 1764
2 No 3 1767
. Missing 7655 9422

OHAROCCI - Impression of soft tissue condition

Variable Name:
OHAROCCI
SAS Label:
Impression of soft tissue condition
English Text:
Clinical impression of soft tissue condition
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 26 26
2 No 11 37
. Missing 9385 9422

OHAROCDE - Denture/Partial Denture/Plates

Variable Name:
OHAROCDE
SAS Label:
Denture/Partial Denture/Plates
English Text:
Denture/Partial Denture/Plates
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 368 368
2 No 6 374
. Missing 9048 9422

OHARNF - No significant findings

Variable Name:
OHARNF
SAS Label:
No significant findings
English Text:
No significant findings
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 5424 5424
2 No 24 5448
. Missing 3974 9422

OHAROTH - Some other finding (specify w/referral)

Variable Name:
OHAROTH
SAS Label:
Some other finding (specify w/referral)
English Text:
Some other finding (specify w/referral letter)
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 2 2
2 No 0 2
. Missing 9420 9422

OHAPOS - Was participant exam position recumbent

Variable Name:
OHAPOS
SAS Label:
Was participant exam position recumbent
English Text:
Was the SP in a recumbent (laying down) position for all eligible assessments of the oral health exam?
English Instructions:
Was the SP in a recumbent (laying down) position for all eligible assessments of the oral health exam (Oral-facial--Loss of Attachment)?
Target:
Both males and females 1 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 8301 8301
2 No 272 8573
. Missing 849 9422