The Demographic data file has been revised. If you have previously downloaded these data, please review the following changes as you may want to obtain the new data set for your analysis.

• The order of the variables has changed.  Variables with information specific to the child now appear first in the data set (after the ID variables), followed by variables containing family level information.
  
  
• Some variable names have changed.

  OLD VARNAME	NEW VARNAME
  AQCASE	INTID97
  PSN	SEQNUM97
  HHTYPE	FUTYPE
  HUSIZE	FUSIZE
  HEADINC	HDLAB97
  WIFEINC	WFLAB97
  HDWKHRS	HDAVG97
  WFWKHRS	WFAVG97

  
  

  
  
• The date variables BDATE, CHIWDATE, and PCGIWDAT have been parsed from a single variable to separate variables representing the month, day and year (for confidentiality reasons, the variable BDATE is represented by month and year only).  These changes were made because SPSS did not interpret these values correctly.  The new variable names are:
  

  BDATE: BIRTHMON BIRTHYR

  CHIWDATE: CHIWMON CHIWDAY CHIWYR

  PCGIWDAT: PCGIWMON PCGIWDAY PCGIWYR

  
  
• The following three additional weight variables have been added to the data set:
  
  
  • OTCGCHWT - other caregiver child booklet weight
  • OTCGHHWT - other caregiver household booklet weight
  • SUBSELWT - within household selection factor
  
  Refer to the CDS Weights Documentation for information and guidelines on the usage of these weights.
  
  
• Some values for the updated variables HDLAB97, WFLAB97, HDAVG97, and WFAVG97 (formerly named HEADINC, WIFEINC, HDWKHRS, and WFWKHRS, respectively) have changed.  Some observations contained erroneous data for these variables.  These errors have been corrected.
  
  
• Missing data (on a number of variables) was recovered for four cases.
  
  
• The labels for the variables PCG, OCG, CH97PRWT, CH97HHWT and PCGHHBWT have been updated.
  
  
• Five variables have been dropped from the data set:
  
  
  • FAMID
  • SIBNUM
  • HDWORK
  • WFWORK
  • WEIGHT (prelim weight)