I am using IHIS Person data for years 1999-2001. Most obvservations for “Weight” fall in the reasonable range of 100-285, but about 600-800 observations each year are either 997, 998, or 999. I assume these are codes for something, but I was hoping to figure out what they code for. Is one of them an indicator for the fact that this person’s weight was greater than 285, since 285 seems to be the largest weight assigned to any person?
The “Height” variable has information on codes in the description, but this information is absent for the “Weight” variable.
Thanks in advance for the help.