Variable IM21CY : Year of Hepatitis B4 immunization

Overview
Type: Continuous
Format: numeric
Width: 4
Decimal(s): 0
Range: 2002-9999
Valid case(s): 5684
Invalid: 29026
Minimum: 2002
Maximum: 2006

File: ch

Categories

Value Category
9999 Missing
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

Generated: FEB-14-2008 using the IHSN Microdata Management Toolkit