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@ARTICLE{Tsuruda:294114,
author = {K. M. Tsuruda and H. Langseth and G. Ursin and S. Hofvind
and R. Turzanski-Fortner$^*$},
title = {{V}alidity of self-reported number of pregnancies and
maternal age at first birth among females attending
organized mammographic screening.},
journal = {Scandinavian journal of public health},
volume = {nn},
issn = {1403-4948},
address = {London},
publisher = {Sage},
reportid = {DKFZ-2024-02119},
pages = {nn},
year = {2024},
note = {#LA:C020# / epub},
abstract = {Reproductive history conveys information about potential
health risks later in adulthood. This study aimed to examine
the validity of self-reported number of pregnancies and
maternal age at first birth (AFB) among females attending
BreastScreen Norway.Participants were identified through the
Janus Serum Bank cohort in Norway and were eligible for this
cross-sectional validation study if they participated in a
health survey issued by BreastScreen Norway between 2006 and
2015. Retrospective self-reported survey information on
number of pregnancies and AFB in years was validated against
prospectively collected information from the Medical Birth
Registry of Norway (MBRN) using the Spearman rank (rs) and
intraclass correlation coefficients (ICC) with $95\%$
confidence intervals (CI).After exclusions, 51,598 subjects
were included in the analysis on number of pregnancies and
46,919 in the analysis on AFB. On average, study subjects
were 59-60 years old when completing the health survey and
had become first-time mothers roughly 36 years earlier.
Survey-based information about number of pregnancies was
highly correlated and demonstrated high agreement with the
registry data (rs=0.967, $95\%$ CI 0.964-0.969; ICC=0.884,
$95\%$ CI 0.882-0.885). Survey-based information about AFB
demonstrated even higher correlation and very high agreement
with the registry data (rs=0.975, $95\%$ CI 0.973-0.976;
ICC=0.974, $95\%$ CI 0.974-0.975).Retrospectively recalled
survey-based information about number of pregnancies and AFB
was highly accurate when validated against prospectively
collected information in the MBRN. These survey-based data
are valuable for future epidemiological research, and
linkage to the MBRN may not be required when these data are
available.},
keywords = {Humans (Other) / cross-sectional studies (Other) / female
(Other) / gravidity (Other) / health surveys (Other) /
maternal age (Other) / parity (Other) / pregnancy (Other) /
registries (Other) / reproductive history (Other)},
cin = {C020},
ddc = {610},
cid = {I:(DE-He78)C020-20160331},
pnm = {313 - Krebsrisikofaktoren und Prävention (POF4-313)},
pid = {G:(DE-HGF)POF4-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:39439148},
doi = {10.1177/14034948241281197},
url = {https://inrepo02.dkfz.de/record/294114},
}