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\begin{document}

\title{Trends in perinatal outcomes of women with chronic medical conditions: a
10-year population-based study in the Netherlands}



\author[1]{Ageeth Rosman}%
\author[1]{Hanneke Harmsen van der Vliet-Torij}%
\author[1]{Sander Hilberink}%
\affil[1]{Rotterdam University of Applied Sciences}%


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  \date{May 27, 2024}


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\begin{abstract}
Objective To gain insight into perinatal outcomes in women with chronic
conditions, in order to contribute to the optimization of personalized
perinatal care. Design Population-based study using data of the Dutch
national perinatal registry between 2010-2019. Setting Nationwide.
Population Pregnancies of women who were diagnosed with chronic medical
conditions by a medical specialist before pregnancy (n=36,835), divided
over seven subgroups and a reference group of pregnancies of women
without known chronic medical conditions (n=1,084,623). Methods
Descriptive and testing statistics. Main outcome measures The primary
outcome was mode of birth. Secondary outcomes were onset of labor,
preterm birth, asphyxia, NICU admission, and perinatal mortality.
Results Spontaneous birth ranged from 45.0\% (orthopedic conditions) to
71.3\% (neurological conditions) to 82.6\% in the reference group.
Instrumental vaginal birth (p\textless{}0.001), planned Cesarean birth
(p\textless{}0.001) and emergency Cesarean birth (p\textless{}0.001)
differed significantly in all groups if compared to the reference group.
Preterm birth was significantly more present in the studied groups
(p\textless{}0.001) as well as perinatal asphyxia (p\textless{}0.001)
and NICU admission (p\textless{}0.001). Adjusting for mode of birth,
parity, age and ethnicity did not change the outcomes for the total
group of women with chronic medical conditions. Perinatal mortality was
seen in all groups but in none of the separate groups significantly more
than in the reference group. Conclusions Women with chronic conditions
more often are confronted with preterm birth, Cesarean deliveries, NICU
admission of the newborn, and perinatal mortality%
\end{abstract}%



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