| | Using Receipt and Decision Cohort Data to Monitor Premarket Review Activities (MDDI archive, Nov 98) |
 | | In other words, the distinguishing characteristic of a receipt cohort is that the basic unit of analysis is the receipt of an application or document, whereas for a decision cohort the basic unit of analysis is an action or decision taken on, or completion of work on, an application or document. |
 | | Because receipt cohort data are not static, a database query regarding percentile data should contain a cutoff date in addition to the beginning and ending dates (e.g., fiscal year) of the cohort. |
 | | While the receipt and decision cohort trends are similar, the rise in median days from FY 1990 to FY 1993 is steeper for the receipt cohorts than for the decision cohorts; the decline from FY 1993 to FY 1997 is also steeper for the receipt cohorts. |
| www.devicelink.com /mddi/archive/98/11/008.html (2273 words) |