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.
For household members under age 5 who were potential subjects for height and weight measurement, HWCMEASCODE (HC21) reports the code assigned to the person measuring their children's height and weight. Codes are sample-specific; a given numeric code in one sample refers to a different person than the same numeric code in another sample.
Using the measurer code, researchers can evaluate whether the quality of responses (e.g., the number of "out of range" cases) depended on the person measuring the children.