------------------- NHIS LOG: DATA YEAR 1971 -------------------- Original release: Six data files for calendar year 1971 were first made available on magnetic tape. Documentation was provided on paper. NHIS FILE TYPE FILE NAME LENGTH # RECS ------------------- --------- ------ ------- HOUSEHOLD HOUSEHLD 486 45,422 PERSON PERSONSX 486 134,502 CONDITION CONDITON 486 68,441 HOSPITAL HOSPITAL 486 17,714 DOCTOR VISIT DRVISITX 486 25,393 PERSON SUPPLEMENT PERSSUPP 536 134,502 July, 2001 -- ASCII CD Release: Series 10 CD, No. 3H: All previously-released data files and their associated documentation files were made available on CD. March, 2007 -- Internet release All previously-released data files and their associated documentation files were made available on the Internet. Note: All six data files in the 1971 NHIS data release in early March, 2007 on the Internet were not the correct files; they were replaced by the correct files by March 16, 2007. An invalid value of person number was corrected on one person record (and corresponding person supplment record) and the files were re-sorted. ----------------------------------------------------------------- To obtain the Internet release of the 1971 NHIS data, visit the NHIS home page: http://www.cdc.gov/nchs/nhis.htm and click on: Questionnaires, Data Sets and Related Documentation ----------------------------------------------------------------- Users are encouraged to join the HISUSERS Listserv and receive E-mail announcements of updates to the NHIS files. To join the Listserv, visit the website at: http://www.cdc.gov/nchs/about/major/nhis/nhislist.htm ----------------------------------------------------------------- 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 -----------------------------------------------------------------