Given them your National Insurance number, the date of joining and the date of leaving.
Follow-up was from the date of the second screening until the date of death, date of leaving the United Kingdom, or December 31 , 2010
Participants were followed up until the earliest of date of death, date of leaving the practice, or the end of follow-up (1 August 2012).
Patients without the study outcome were censored at the earliest of the date of death, date of leaving the practice study or 2 years of follow-up.
The right censor date will be the earliest of the following where applicable: date of diagnosis of VTE, date of death, date of leaving the practice, date of the latest download of data and study end date.
The right censor date will be the earliest of the following: date of diagnosis of cancer, date of death, date of leaving the practice, date of the latest download of data, the study end date.
The patient cohort data include records on sex, date of address change, year of birth, practice registered, and date of leaving Tayside.
We censored patients who did not have the outcome of interest during follow-up at the earliest of date of death, date of leaving the practice, date of the latest download of data, or the study end date (31 December 2008).
Date of leaving the workforce was obtained from monthly Human Resources records, with reason for leaving being unavailable for some of the mines.
For cases who have left the province and who are not known to be dead, the date of leaving Alberta will be used as the censoring time.
