------------------- NHIS LOG: DATA YEAR 1967 --------------------

April 8, 2008 -- Original Internet release:

   NHIS FILE TYPE       DATA FILE NAME    LENGTH  # RECS
   -------------------  --------------    ------  -------                                             
   PERSON               PERSON.DAT          156   133,962
   CONDITION            CONDITION.DAT       156   159,779
   HOSPITAL             HOSPITAL.DAT        156    17,880
   DOCTOR VISIT         DRVISIT.DAT         156   139,688
   HOUSEHOLD            HOUSEHOLD.DAT       156    43,770
   HOME CARE            HOMECARE.DAT        156     1,315

   NCHS recommends that data users verify the integrity of
   downloaded files by comparing the MD5 checksums of downloaded
   files to the reference values given below:

      CE9D3F138D0C9DA4F07CAE48362A3314  condition.dat
      443BADFA52A48B05E62BC932B3B71069  drvisit.dat
      26BE96AE3FF6F15B2ED37C8FDEC55533  homecare.dat
      506406193256B4DB403593447B5D12E6  hospital.dat
      F1E8E34C531F06E395DD185A932B8D56  household.dat
      977AEF25AC5C0C525C27C89CFF810DCF  person.dat

   For more information on MD5 checksums, please refer to the ftp
   site:
   ftp://ftp.cdc.gov/pub/Health_Statistics/NCHS/Datasets/NHIS/checksums.pdf

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January, 2009 -- Internet release - DATA CHANGE

   The Condition file released in April 2008 was incorrect because it was
   missing 10 records that it was supposed to contain.  The corrected record
   count and checksum for the Condition file are:

   NHIS FILE TYPE       DATA FILE NAME    LENGTH  # RECS
   -------------------  --------------    ------  -------                                             
   CONDITION            CONDITION.DAT       156   159,789

   MD5 checksum:
   57457382DE539B6ACA8C5ACC4D5F89DD  condition.dat

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To obtain the Internet release of the 1967 NHIS data, visit the 
NHIS home page:

   http://www.cdc.gov/nchs/nhis.htm

and click on:

   Questionnaires, Data Sets and Related Documentation
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Questions about the NHIS?  Contact:

   Division of Health Interview Statistics
   National Center for Health Statistics
   3311 Toledo RD RM 2217
   Hyattsville MD 20782

   E-mail:    nhislist@cdc.gov
   Voice:     301-458-4901
   FAX:       301-458-4035
   Home Page: http://www.cdc.gov/nchs/nhis.htm
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