I am examining the MOD10FWK variable and am attempting to understand the values I see. MOD10FWK is a 2 digit number that should correspond with number of times per week an individual reported 10+ minutes of moderate exercise. I do not understand the values 8 through 28, however.
I have examined the original NHIS codebook and the source question for this variable was paired with a units variable that allowed respondents to specify times per day, week, month or year. I am assuming the values 1-7 are number of times per week and those 8-28 are times per month. Is it possible to get confirmation of this?
Also, are any of the values for the units times per day or per year?