"date of invitation" is correct and usable in written English.
You can use it when referring to an invitation that contains a date. For example, "Please respond to this invitation by the date of invitation, March 15th."
The programme in Funen started on 1 November 1993 and invited women aged 50-69 athehe date of invitation.
To qualify, a candidate must have on the date of invitation the support of an average of at least 15percentt of those polled in five national surveys.
7 The exact date of invitation was not available in the screening register.
Usually age is the only risk factor measured when evaluating population-based breast cancer screening programmes, because information on date of birth and date of invitation of women is mostly available.
Data from the booking system (civil registration number, screening round, date of invitation, date of screening, and date of sending the screening result to the woman) in each of the five Danish regions are transferred electronically to the DKMS.
This information includes: date of birth; address; date of invitation; date of attendance; whether the attendance was based on routine recall, GP referral or self referral; and information relating to screening results and, where necessary, referrals for further consultations or treatment.
Information on dates of invitation, attendance, breast cancer diagnosis, emigration, death, and cause of death was linked by using unique 11-digit personal identification numbers assigned all inhabitants of Norway at birth or immigration.
From the screening database we further retrieved data on tumour grade (based on the Nottingham grading system, I-III 22); oestrogen and progesterone receptor status 21; pTNM classification; and dates of invitation and attendance to the screening programme.
Women were followed up from the date of first invitation until invitation to the second screening if within 3.5 years (i.e. 1277 days), or for the mean interscreen interval for the screening unit if no screen occurred within this time (mean ± standard error interscreen interval for all regional screening units, 1106 ± 7.6 days).
We received an anonymized file with individual level dates of invitations and attendance for all women who were invited to the NBCSP and linked this information to the dates of diagnosis of breast cancer, emigration, and death (Fig. 1).
The screening histories of all women in the cohort, including the dates of invitations and the dates of all their screening tests following the invitations, if any, were extracted from the local computerized screening database.
