Sentence examples for cohort index from inspiring English sources

Cohort index date was the first dispensing for a study drug.

The chart review covered a 13-month period, beginning with the month of selection into the cohort (index period) followed by review of the 12 months preceding that date (reference period).

Starting from the cohort index date, the study subjects were followed until hospitalization with EOC or to the end of the study (December 31 , 2010, whichever came first, if no EOC had occurred.

The median interval between the cohort index date and the date of a surgico-pathological diagnosis of EOC for the women with and without endometriosis was 505 days (ranging from 5 to 3433 days) and 824 days (ranging from 1 to 4095 days), respectively.

Based on the type of BPH treatment received at entry into the cohort (index BPH diagnosis), the 79 280 patients were categorised into four groups: 21 995 (27.7%) had no surgery, 37 410 (47.2%) had TURP, 19 035 (24.0%) had transvesical adenomectomy (TA, open surgery for removal of the entire inner core of the prostate), and 840 (1.0%) had both TURP and TA.

For comparison cohort, the index ambulatory care visit was their first ambulatory care visit occurring in the index year.

For the comparison cohort, the index ambulatory care visit was their first ambulatory care visit occurring in the index year.

From each cohort, 10,000 index persons are selected so that altogether there is information on 60,000 extended families.

Our objective was to describe the frequency of mutations associated with KCNC3 in a large cohort of index patients with sporadic or familial ataxia presenting to three US ataxia clinics at academic medical centers.

Because the core phase of our study has been scheduled for a maximum of 3 years at study initiation, an extension phase is now planned in order to collect follow-up clinical data of the study cohort (progression index, time to conversion to clinically definite and chronic-progressive MS).

For the non-cancer cohort, an index date was needed in order to facilitate comparisons with the cancer cohorts.