Sentence examples similar to subject's reference date from inspiring English sources

Either way, the artist's references date back further.

For comparability, control subjects were assigned a reference date corresponding to the average time from diagnosis to interview for the case group (about 1 year).

A reference date was defined as one year before the date of diagnosis of the case patient; this same reference date was used for each case patient's matched control subject(s).

The date that the case subject was first diagnosed with bladder cancer served as the reference date for both the case subject and the matched control.

The reference date for the subject was the date of epidemiological risk factor interview, but the family data used (family structure and cancer diagnoses in relatives) were those that had been reported in the family by the date of analysis, not only those reported at the time of interview.

Menopausal status was defined as postmenopausal if the subject reported natural menopause or bilateral oophorectomy before the reference date.

An actual reference date was assigned for each subject without diabetes by randomly sampling from the subset of subjects with diabetes in the same stratum, thereby ensuring that the distribution of possible observation times for subjects without diabetes corresponded precisely with those of their matched subjects with diabetes.

Only women who still had menstrual cycles or reported natural amenorrhea for less than 6 months or more before the reference date (date of diagnosis for case subjects and date of completion of questionnaire for controls) were considered premenopausal.

The interview collected detailed exposure data for each subject from the time of the Chernobyl accident until the reference date.

Reference dates for all subjects fell within the 15 year study period from 1995 through 2009, with follow-up through 2011 and observation before the reference date as far back as the patient's history in the Marshfield Clinic EMR.

The end of the at-risk period defined the reference date, the time point when data collection ended for control subjects.