BSHTRMO is a variable with three columns and no implied decimal place.
000 = None
997 = Unknown-refused
998 = Unknown-not ascertained
999 = Unknown-don't know
For sample adults over age 40 who ever had a home blood stool test, except for those for whom the date of the exam unknown, BSTHMOR reports the time since the last home blood stool test in months.
- 2000; 2003: Sample adults age 40+ who ever had home blood stool test, except for those for whom the date of the exam unknown.
- 2000, 2003
- 2000, 2003 : SAMPWEIGHT