Codes and Frequencies
SLDAY2WK reports the number of days (from 0 to 14) that illness or injury kept a person (age 6 to 16 years in 1968-1981, and age 5 to 17 years in 1982-1996) from school 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.
In 1997 forward, SLDAYR reports the number of days that illness or injury kept sample children age 5-17 from school during the past 12 months.
The comparable variable measuring the effects of illness or injury on adults during the preceding two weeks is WLDAY2WK, Work 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 SLDAY2WK changed in 1982.
Because of these changes, researchers should exercise caution in comparing results for SLDAY2WK before and after 1982.
In the original public use files, a value of 00 (none) was given for very young children and for adults, who were not questioned about school absenteeism. The IPUMS NHIS version of this variable moves these age groups into the NIU category for SLDAY2WK.
- 1969-1981: Persons age 6 to 16.
- 1982-1996: Persons age 5 to 17.
- 1969-1996 : PERWEIGHT