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Randomized Controlled Trial
. 2023 Dec 9;33(6):1122-1127.
doi: 10.1093/eurpub/ckad137.

The effect of a pre-scheduled appointment on attendance in a population-based mammography screening programme

Mathijs M Goossens  1   2 , Eliane Kellen  2   3 , Mireille J M Broeders  4   5 , Els Vandemaele  2 , Brenda Jacobs  1   2 , Patrick Martens  2
Affiliations
Randomized Controlled Trial

The effect of a pre-scheduled appointment on attendance in a population-based mammography screening programme

Mathijs M Goossens et al. Eur J Public Health. .

Abstract

Background: Pre-scheduled appointments can increase attendance in breast cancer screening programmes compared to 'open invitations' but relatively few randomized controlled trials exist. We investigated the effect of a pre-scheduled appointment on uptake in the Flemish population-based mammography screening programme.

Methods: Between September and December 2022, a total of 4798 women were randomly assigned to receive either a pre-scheduled appointment or open invitation. The difference in attendance was compared with Poisson regression analysis for the primary endpoint (attendance ≤92 days after date of invitation), yielding relative risks (RRs). This was done separately for three groups: women invited to a mobile unit and a history of nonattendance (group M-NA); women invited to a hospital-based unit and a history of nonattendance (group HB-NA); women invited to a hospital-based unit and a history of irregular attendance (group HB-IA). There were no women invited to a mobile unit and a history of irregular attendance.

Results: The RRs in favour of the pre-scheduled appointment were 2.3 [95% confidence interval (CI) 1.80-2.88], 1.8 (95% CI 1.07-2.97) and 1.8 (95% CI 1.43-2.39), for groups M-NA, HB-NA and HB-IA, respectively. We found no statistically significant difference between the various RRs. The respective absolute gains in attendance between pre-scheduled appointment and open invitation were 8.3%, 4.4% and 15.8%.

Conclusions: Sending an invitation with a pre-scheduled appointment is an effective tool to increase screening attendance in both mobile and hospital-based screening units. The pre-scheduled appointment is associated with a considerable absolute gain in attendance which varies depending on the screening history.

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References

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