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Code library

National Health and Nutrition Examination Survey (NHANES)

Crosswalks of variable names and codes between NHANES survey cycles

Dental sealant examination variables in NHANES 1988-1994, 1999-2000 and 2001-2002

Dentition

(Tooth count, coronal caries, root caries, dental sealants, incisor trauma, and fluorosis)

 

 

Releases in which variable appears and data set name

Variable name

Variable Description or label

1999-2000

2001-2002

2003-2004

2005-2006

OHX##SE

Dental Sealants for teeth:
2-5, 7, 10, 12-15, 18-21, 28-31

OHXDENT

OHXDEN_B

 

 

Sealants

Both NHANES 1988-1994 and 1999-2002 include sealant variables for each tooth.  Sealant variables follow the naming schemes of the coronal caries tooth call variables in each survey.
The NHANES 1988-1994 sealant variables code presence of sealants at the tooth level.
The NHANES 1999-2002 sealant variables contain a string of codes indicating sealants on each permanent or primary surface.

Data Release

NHANES 1988-1994

NHANES 1999-2002

Variable name

DEPSE## (numbers 1 - 28)

OHX##SE (numbers 1 - 28)

Codes

0=no sealant

0=sealant not present

1=sealant present

1=Occlusal sealant on permanent tooth

2=not eligible for sealants

2=Facial sealant on permanent tooth

 

3=Lingual sealant on permanent tooth

 

4=Occlusal sealant on primary tooth

 

9=cannot be assessed

Variables for presence and number of sealants on permanent teeth were calculated from these variables for the MMWR Surveillance Summary.  Versions were calculated for all permanent pit-and-fissure teeth and by tooth type (lateral, premolar, 1st molar, 2nd molar).
(See programs nh3seal.sas and ohdseal.sas)

 The calculated variables are named with the following prefixes:

OHXSEAL (presence of sealants)
            Sealn (number of sealants)

And these suffixes:

            Per (permanent)
            Lat (lateral)
            Pre (premolar)
            1st (1st molar)
            2nd (2nd molar)