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Recurrence of post-term pregnancy and associated factors among women who delivered at Kilimanjaro Christian Medical Centre in northern Tanzania : A retrospective cohort study

Mitao, Modesta ; Mwita, Winfrida C ; Antony, Cecilia ; Adinan, Hamidu ; Shayo, Benjamin ; Amour, Caroline ; Mboya, Innocent B LU orcid and Mahande, Michael Johnson (2023) In PLoS ONE 18(4). p.1-12
Abstract

BACKGROUND: Post-term pregnancy is a health problem of clinical importance and; tends to recur in subsequent pregnancies. Maternal age, height, and male fetal sex are risk factors associated with Post-term pregnancy. The study aimed to determine the recurrence risk of post-term pregnancy and associated factors among women delivered at KCMC referral hospital.

METHODOLOGY: This retrospective cohort study used KCMC zonal referral hospital medical birth registry cohort data for 43472 women delivered between 2000 and 2018. Data were analyzed using STATA version 15 software. Log-binomial regression with robust variance estimator determined the factors associated recurrence of post-term pregnancy adjusted for other... (More)

BACKGROUND: Post-term pregnancy is a health problem of clinical importance and; tends to recur in subsequent pregnancies. Maternal age, height, and male fetal sex are risk factors associated with Post-term pregnancy. The study aimed to determine the recurrence risk of post-term pregnancy and associated factors among women delivered at KCMC referral hospital.

METHODOLOGY: This retrospective cohort study used KCMC zonal referral hospital medical birth registry cohort data for 43472 women delivered between 2000 and 2018. Data were analyzed using STATA version 15 software. Log-binomial regression with robust variance estimator determined the factors associated recurrence of post-term pregnancy adjusted for other factors.

RESULTS: A total of 43472 women were analyzed. The proportion of post-term pregnancy was 11.4%, and the recurrence was 14.8%. The recurrence risk of post-term pregnancy was increased when a woman had a history of previous post-term pregnancy (aRR: 1.75; 95%CI: 1.44, 2.11). Advanced maternal age, i.e., ≥35years (aRR: 0.80; 95%CI: 0.65, 0.99), having secondary and higher education (aRR: 0.8; 95%CI: 0.66, 0.97), and being employed (aRR: 0.68; 95%CI: 0.55, 0.84) decreased the recurrence risk of post-term pregnancy. Women with recurrence of post-term pregnancy had a higher risk of delivering newborns weighed ≥4000gm (aRR: 5.05; 95% CI: 2.80, 9.09).

CONCLUSION: Post-term pregnancy is associated with recurrence risk in subsequent pregnancies. A history of previous post-term pregnancy is associated risk factor and these women are at increased risk of delivering newborns weighed ≥4000gm. Clinical counselling of women at risk of post-term pregnancy and timely management is recommended to prevent adverse neonatal and maternal outcomes.

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author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Pregnancy, Humans, Infant, Newborn, Male, Female, Adult, Retrospective Studies, Tanzania/epidemiology, Maternal Age, Risk Factors, Hospitals, Pregnancy Outcome
in
PLoS ONE
volume
18
issue
4
article number
e0282078
pages
1 - 12
publisher
Public Library of Science (PLoS)
external identifiers
  • pmid:37014885
  • scopus:85151808212
ISSN
1932-6203
DOI
10.1371/journal.pone.0282078
language
English
LU publication?
yes
additional info
Copyright: © 2023 Mitao et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
id
3b4e2e2f-7d21-494c-9f1d-8ca150782a63
date added to LUP
2023-04-07 10:46:30
date last changed
2024-02-19 18:39:05
@article{3b4e2e2f-7d21-494c-9f1d-8ca150782a63,
  abstract     = {{<p>BACKGROUND: Post-term pregnancy is a health problem of clinical importance and; tends to recur in subsequent pregnancies. Maternal age, height, and male fetal sex are risk factors associated with Post-term pregnancy. The study aimed to determine the recurrence risk of post-term pregnancy and associated factors among women delivered at KCMC referral hospital.</p><p>METHODOLOGY: This retrospective cohort study used KCMC zonal referral hospital medical birth registry cohort data for 43472 women delivered between 2000 and 2018. Data were analyzed using STATA version 15 software. Log-binomial regression with robust variance estimator determined the factors associated recurrence of post-term pregnancy adjusted for other factors.</p><p>RESULTS: A total of 43472 women were analyzed. The proportion of post-term pregnancy was 11.4%, and the recurrence was 14.8%. The recurrence risk of post-term pregnancy was increased when a woman had a history of previous post-term pregnancy (aRR: 1.75; 95%CI: 1.44, 2.11). Advanced maternal age, i.e., ≥35years (aRR: 0.80; 95%CI: 0.65, 0.99), having secondary and higher education (aRR: 0.8; 95%CI: 0.66, 0.97), and being employed (aRR: 0.68; 95%CI: 0.55, 0.84) decreased the recurrence risk of post-term pregnancy. Women with recurrence of post-term pregnancy had a higher risk of delivering newborns weighed ≥4000gm (aRR: 5.05; 95% CI: 2.80, 9.09).</p><p>CONCLUSION: Post-term pregnancy is associated with recurrence risk in subsequent pregnancies. A history of previous post-term pregnancy is associated risk factor and these women are at increased risk of delivering newborns weighed ≥4000gm. Clinical counselling of women at risk of post-term pregnancy and timely management is recommended to prevent adverse neonatal and maternal outcomes.</p>}},
  author       = {{Mitao, Modesta and Mwita, Winfrida C and Antony, Cecilia and Adinan, Hamidu and Shayo, Benjamin and Amour, Caroline and Mboya, Innocent B and Mahande, Michael Johnson}},
  issn         = {{1932-6203}},
  keywords     = {{Pregnancy; Humans; Infant, Newborn; Male; Female; Adult; Retrospective Studies; Tanzania/epidemiology; Maternal Age; Risk Factors; Hospitals; Pregnancy Outcome}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{1--12}},
  publisher    = {{Public Library of Science (PLoS)}},
  series       = {{PLoS ONE}},
  title        = {{Recurrence of post-term pregnancy and associated factors among women who delivered at Kilimanjaro Christian Medical Centre in northern Tanzania : A retrospective cohort study}},
  url          = {{http://dx.doi.org/10.1371/journal.pone.0282078}},
  doi          = {{10.1371/journal.pone.0282078}},
  volume       = {{18}},
  year         = {{2023}},
}