Description
For sample persons aged 18 and older who worked last year at a civilian job and who had back pain every day for at least 1 week last year, BPDURTP reports the length of time (in time unit) that the person was bothered by his/her back pain.
Users should combine BPDURTP with BPDURTN, which reports the time number for the time unit in BPDURTP, in order to get complete information on the length of time that the person was bothered by his/her back pain.
This variable was included in the 1988 Occupational Health supplement.
