Codes and Frequencies
WLDAY2WK reports the number of days (from 0 to 14) that illness or injury kept an adult from work during the preceding two weeks. Interviewers showed respondents a hand calendar with the relevant two weeks, beginning with a Monday and ending with a Sunday, outlined in red.
The question was asked of all adults (age 17+ in 1968-1981, and age 18+ in 1982-1996), regardless of whether they were employed during the reference period. Analysts who wish to focus exclusively on working adults may further restrict the universe using EMPSTAT.
In 1968-1981, the question was:
In 1982-1996, the question was:
In 1997 forward, WLDAYR reports the number of days that illness or injury kept sample adults from work during the past 12 months.
In the original public use files, a value of 00 (none) was given for children, who were not asked about work loss days. The IPUMS NHIS version of this variable moves children into the NIU category for WLDAY2WK. The comparable variable measuring the effects of illness or injury on children during the preceding two weeks is SLDAY2WK, School loss days. Other variables providing insight into the effects of illness or injury in the preceding two weeks are RADAY2WK, Restricted activity days, and BDDAY2WK, Bed disability days.
Along with a change in the universe, the question wording for WLDAY2WK changed in 1982.
Because of these changes, researchers should exercise caution in comparing results for WLDAY2WK before and after 1982.
- 1969-1981: Persons age 17+.
- 1982-1996: Persons age 18+.
- 1969-1996 : PERWEIGHT