IRDAYSR is a 3-digit-numeric variable.
992: 92-104 days before the interview
993: Same month as interview
994: Month before month of interview
995: 2 months before month of interview
996: 3 or 4 months before month of interview
998: Unknown-not ascertained
999: Unknown-don't know
For all injury and poisoning episodes, IRDAYSR reports the number of days that elapsed between the injury or poisoning episode and the interview date. If the person could not recall the exact timing of the injury or poisoning, she/he was asked a series of follow up questions to establish the approximate timing of the episode. The information available from these follow up questions changes over time. Please see the Comparability and Codes Tabs for more detailed information.
IRDAYSR is an injury-level variable.
IRDAYSR is part of a series of variables initiated in 1997 that systematically report persons' injuries and poisonings, the cause, what the person was doing while sustaining the injury or poisoning, and where she/he was at the time of the injury or poisoning. For related variables and additional information, please see the User Note on Injuries and Poisonings or use the IPUMS NHIS search function and drop-down menus.
Prior to 2004, persons could report 0-91 elapsed days between the injury/poisoning episode and the interview. IRDAYSR includes additional categories for cases with a reported time difference of greater than 91 days or where persons could not remember the exact timing of the injury/poisoning. These codes are listed under the Codes Tab.
Beginning in 2004, persons could report 0-999 elapsed days between the injury/poisoning episode and the interview. Persons who did not recall the exact timing of the injury/poisoning episode in these years were asked a series of follow up question to establish the approximate timing of the episode. For episodes that were imputed through follow up questions in 2004-forward, the NHIS-created variables IRDAYSLB and IRDAYSUB provide the lower and upper bound of the number of elapsed days between the injury or poisoning and the interview date, respectively. Imputed values for IRDAYSR are identified by the variable IRTIMEFLG.
- 1997-2013; 2014 2015 2016 2017: All injury and poisoning episodes.
- 1997-2017 : PERWEIGHT