WEIGHTK is a 9-digit-numeric variable.
0000: Not in Universe
For sample persons ages 18 and over, WEIGHTK reports the persons weight in kilograms.
The question for WEIGHTK in 1977 was asked for a sub-sample of randomly selected persons age 20 and over; NHIS automatically classifies persons who were selected but did not complete the questions as responding "unknown " for this variable. Users may choose to use this variable in combination with SUBSRESP77, which reports the person's sub-sample status in 1977.
- 1977: Subsampled persons age 20+.
- 1991: Sample persons age 18+.
- 1992: Sample persons age 18+ in quarters 1 and 2 and in 2 weeks of quarter 3.
- 1993: Half of sample persons age 18+ in quarters 3 and 4 (excluded from AIDS supplement).
- 1995: Half of sample persons age 18+ (excluded from AIDS supplement).
- 1977, 1991-1993, 1995