Contains data from nnhs2.dta
  obs:         5,058                          Norton - neonatal audiology data
 vars:             9                          4 Sep 2007 17:09
 size:       146,682 (99.1% of memory free)   (_dta has notes)
-------------------------------------------------------------------------------
              storage  display     value
variable name   type   format      label      variable label
-------------------------------------------------------------------------------
id              str5   %9s                    ID
ear             byte   %8.0g       earlbl     Ear
sitenum         byte   %8.0g                  Site #
currage         float  %9.0g                  
gender          byte   %8.0g       sexlbl     Gender
d               byte   %9.0g       ynlbl      Hearing impaired
y1              float  %9.0g                  DPOAE 65 at 2kHz
y2              float  %9.0g                  TEOAE 80 at 2kHz
y3              float  %9.0g                  ABR
-------------------------------------------------------------------------------
Sorted by:  

**********************
value labels for variables with numeric codes:

earlbl:
           1 left
           2 right
sexlbl:
           1 F
           2 M
ynlbl:
           0 no
           1 yes

*********************
notes:

_dta:
  1.  Data reference: Norton SJ, Gorga MP, Widen JE, Folsom RC, Sininger Y,
      Cone-Wesson B, Vohr BR, Mascher K, Fletcher K.. Identification of neonatal
      hearing impairment: Evaluation of transient evoked ototacoustic emission,
      distortion product otoacoustic emission, and auditory brain stem response
      test performance. Ear and Hearing 21:508-28. 2000.