Definition
For children born in the 3 to 5 years before the survey, VACOTH indicates whether the child has received some other vaccination. The meaning of "other" must be interpreted relative to the specific vaccination categories included in a particular sample.
VACOTH uses composite coding, with a first digit of 2 indicating the child has been vaccinated and the second digit indicating the source of information (a dated entry on the vaccination card, an undated mark on the vaccination card, or the mother's report).