SN 3807 SCOTTISH HEALTH SURVEY 1995 Individual file can be used separatedly but the household file should be merged with the individual file through variable SERIALX Variables diffvc, diffev, sdfev, medn, medn1-medn15 are intermediate variables used to create other derived variables In the file intproj.doc there is in Appendix C Practice Interview Check letters. The serial numbers run from 999011 to 999471 in the machine readable file and from 997011 to 997471 in the paper version, but this does not affect the study's use.