Variable | Comment |
---|---|
*The difference, in days, between the person’s date of first observation and date of birth. | |
†The difference, in days, between the person’s date of last observation and date of birth. | |
study_id | Unique identification number for cohort member |
age_entry | Age at starting date of follow up (in days)* |
age_dlo | Age at ending date of follow up (in days)† |
censor | Indicator of case status (1 = case of study disease, 0 = non-case) |