Pre-notifications increase retention in a 17-year follow-up of adolescents born very preterm.

ABSTRACT:

Objective

Retention is essential in follow-up studies to reduce missing data, which can cause bias and limit the generalizability of the results. We investigated whether pre-notification letters would increase the response rates of approval forms and questionnaires and reduce the need for post-notifications in a prospective follow-up study of 17-year-old adolescents.

Study design

and settings This long-term follow-up study included 269 adolescents were randomized (1:1) into a pre-notification group (n = 132) and a no pre-notification group (n = 137). The pre-notification letter was sent prior to the approval form and questionnaires. The outcome measures were the response rates to the approval forms and questionnaires and the rate of post-notifications required.

Results

SUBMITTER: Helin M 

PROVIDER: S-EPMC10373294 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature