STOODAGEWK is a 3-digit-numeric variable.
0: Not in Universe
996: Never stood alone
998: Unknown whether stood alone
999: Unknown when stood alone
For sample persons under 5 years old, STOODAGEWK reports the age (in weeks) at which the child first stood alone on his or her feet for 10 seconds or more without holding on to anything or another person.
For related variables, please use the IPUMS NHIS search function and drop-down menus.
- 1981: Sample persons under age 5.
- 1981 : SAMPWEIGHT