What this card shows
The Donor oocytes used, by donor age at freeze card shows how many donor oocyte devices were thawed for treatment each month, with one line per donor age band. The age bands are the same as on the Donor oocytes in stock by donor age at freeze card beside it, so you can read demand against what you hold.
The card counts devices, not oocytes. One cryotop commonly holds several oocytes, so the number of oocytes is usually higher.
Only devices recorded as donated count. A donor's own samples, thawed for their own treatment, are not counted.
An age band that is drawn down every month while its bar on the stock card is short is the one to recruit donors for. Volumes are usually small, so read the shape over several months rather than reacting to a single month.
Reading the card
Each line is one age band at freeze, listed in the legend from youngest to oldest: Under 25, 25 to 27, 28 to 30, 31 to 33 and 34 and over. Each point is the number of devices in that band thawed for treatment that month. Hover over a point to see its count.
Devices whose age at freeze cannot be worked out appear under Age not recorded. That happens when the donor's date of birth or the freeze date is missing, or when the two dates give an age outside 16 to 55.
The dashboard's Date filter sets the months shown, by the date of the thaw. It defaults to the past 12 months, including the current month.
The Clinic filter narrows the chart to the clinics you choose. Here, clinic means the site the storage tank belongs to, so a device counts toward the clinic where it was stored before it was thawed.
Where this data comes from
A device counts as used when it is thawed from its sample in Cryostorage with the thaw's Reason set to Treatment. The month comes from the thaw's Thawed at date. Thaws for any other reason, such as a discard, research, training or a test thaw, are not counted.
Age at freeze is worked out from the donor's date of birth and the device's freeze date.
The donor's date of birth is the Date of Birth field in the Personal section of the Profile tab, on the right of the donor's page under Cryostorage → Donors. It comes from the donor's patient record.
The freeze date is the Freeze date on each storage device, on the sample's edit page. If a device has no freeze date of its own, the sample's freeze date is used instead.
A device counts as donated when, on the sample's storage devices, its Freeze purpose or Use status is set to a donation value: Donation or Known donation for the freeze purpose, Donation or Donated to bank for the use status. A donor's device frozen without a donation value is treated as the donor's own sample and is not counted.
Opening this card
In wawa, open Insights from the sidebar, then go to Standard Reports → Donor → Donor and choose the Oocytes tab. The Donor oocytes used, by donor age at freeze card is on the right of the tab, in the row below Donor oocytes taken out of storage.