• Component Description
• Eligible Sample
• Interview Setting and Mode of Administration
• Quality Assurance & Quality Control
• Data Processing and Editing
• Analytic Notes
• Codebook
  • SEQN - Respondent sequence number
  • OHQ835 - Do you think you might have gum disease?
  • OHQ845 - Rate the health of your teeth and gums
  • OHQ850 - Ever had treatment for gum disease?
  • OHQ855 - Any teeth became loose without an injury
  • OHQ860 - Ever been told of bone loss around teeth
  • OHQ865 - Noticed a tooth that doesn't look right
  • OHQ870 - How many days use dental floss/device
  • OHQ875 - Days used mouthwash for dental problem

National Health and Nutrition Examination Survey

2009-2010 Data Documentation, Codebook, and Frequencies

Oral Health (OHQ_F)

Data File: OHQ_F.xpt

First Published: April 2012

Last Revised: NA

Component Description

The oral health questionnaire section (OHQ) provides personal interview data on oral health topics. These topic areas and related target population groups in the OHQ section include:

• Dental health perception (30+ yr)
• Periodontal disease self-report (30+ yr)

 

Eligible Sample

All survey participants 30 years and older were eligible for the dental health perception and quality of life related questions.

Interview Setting and Mode of Administration

The Oral Health questionnaire was done before the physical examination, in the home, using the Computer-Assisted Personal Interviewing-CAPI (interviewer administered) system.

Quality Assurance & Quality Control

Several types of quality control were implemented to ensure that high quality data were collected during the survey.

Interviewer monitoring was a major responsibility for NCHS and contractor staff. Interviewers were frequently accompanied on interviews and observed to verify that the interview protocol was administered correctly. Interviewers were retrained on survey procedures if necessary.

The interviewers are encouraged to provide comments and other suggestions, based on their field experiences. NCHS has used field staff and interviewer feedback to improve the questionnaires and survey materials. NCHS and contractor staff conduct annual staff debriefing and training sessions jointly. Interviewers are trained on new survey content and protocol changes prior to implementation in the field.

The CAPI system is programmed with built-in consistency checks to reduce data entry errors. CAPI also uses online help screens to assist interviewers in defining key terms used in the questionnaire.

Data Processing and Editing

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

Analytic Notes

In addition to the oral health questionnaire data, oral health examination data can be found in the oral health section of the NHANES 2009–2010 Exam Files (OHX). These data may be linked using the unique survey participant identifier, SEQN. Please refer to the Oral Health Examination support documentation for additional information related to the oral component and oral health questions administered at the time of the oral health examination.

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 and the on-line NHANES Tutorial on the NHANES website for further details on the use of sample weights and other analytic issues.

Codebook and Frequencies