1 R GM, et al. BMJ Open 2022;12:e063497. doi:10.1136/bmjopen-2022-063497
Open access
Study protocol: ‘a large cohort study of
postnatal events in a not-for-proft
referral centre in Vellore, South India’
Grace Mano R,
1
Ruby Angeline Pricilla,
2
Suja Kurian,
3
Santosh Joseph Benjamin,
1
Swati Rathore,
4
Hilda Yenuberi,
1
Shanti dani Minz,
5
Manish Kumar,
6
Benjamin Jeyanth Ross,
6
Reeta Vijayaselvi,
1
Anuja Abraham,
1
Annie Prasanthi,
1
Thenmozhi Mani ,
7
Sunil George Abraham,
2
Emily Divya Ebenezer,
1
Anne George,
8
Rohin Mittal,
9
Lakshmanan Jeyaseelan ,
10,11
Jiji Elizabeth Mathews ,
1
The PoNTiS Collaborative Group
To cite: R GM, Pricilla RA,
Kurian S, et al. Study protocol:
‘a large cohort study of
postnatal events in a not-
for-proft referral centre in
Vellore, South India’. BMJ Open
2022;12:e063497. doi:10.1136/
bmjopen-2022-063497
► Prepublication history and
additional supplemental material
for this paper are available
online. To view these fles,
please visit the journal online
(http://dx.doi.org/10.1136/
bmjopen-2022-063497).
Received 05 April 2022
Accepted 21 November 2022
For numbered affliations see
end of article.
Correspondence to
Dr Jiji Elizabeth Mathews;
og5@cmcvellore.ac.in
Protocol
© Author(s) (or their
employer(s)) 2022. Re-use
permitted under CC BY-NC. No
commercial re-use. See rights
and permissions. Published by
BMJ.
ABSTRACT
Introduction In a large developing country, with diverse
population characteristics and differential access to healthcare,
it is important to identify factors that infuence postnatal health.
This knowledge will help frame recommendations to enhance
universal postnatal care.
Methods and analysis A prospective cohort study will
be conducted by recruiting all participants who deliver in a
referral centre in South India during a 1-year period after
written consent is obtained from them. In addition to clinical
information pertaining to their delivery and demographics,
details of physical health, mental health socioeconomic status
and emotional support will also be collected. Every participant
will be followed up physically and/or by telephonic consultation
at 3, 9 and 18 months of their postnatal period to reassess
their status and that of their babies. As there are several
independent and dependent variables requiring multivariate
analysis, a sample size of 10 000 is considered adequate. Any
unplanned visits to a health facility will be enquired into and
documented for analysis.
During data analysis, the effect of Caesarean section, high-risk
characteristics and gestational age of the baby at delivery
on various outcome measures and postnatal status will be
evaluated. Interpretation of the large volume of collected data
will help frame recommendations to improve postnatal care
Ethics and dissemination The study is approved by the
Institutional Review Boards (Research and Ethics Committees)
of Christian Medical College, Vellore, Tamil Nadu, India (IRB
12178 date 24 June 2020).
Women are provided with a detailed information sheet and
written consent is obtained. They are reassured that their care
will not be compromised if they do not consent to the study.
Data will be available on the clinical trial portal to assist in the
dissemination of results after the project is published.
Trial registration number CTRI/2022/03/041343.
INTRODUCTION
The focus of the global health community has
shifted from coverage to quality of care, from
antenatal and intrapartum care to postnatal
care. There has been an impressive improve-
ment in maternal and new born mortality with
the completion of the millennium develop-
ment goals. However, in this era of sustainable
development goals, emphasis on morbidity
and quality of care has taken centre stage. Very
little is known about the postpartum phase in
our subcontinent. Substantial improvements
in antenatal and intrapartum care have made
research into this phase of care important for
the improvement of the well-being of both
mother and child. There is an urgent need
to comprehend details of maternal medical,
physical and mental health, newborn health,
social support system and barriers to breast
feeding, contraception and sexual activity, all
of which are interlinked for optimal health-
care. This protocol aims to address this
lacuna. Outcomes of a cohort of about 14 000
deliveries per year for 18 years in a tertiary
centre in south India have been published in
the British Journal of Obstetrics and Gyne-
cology in June 2019.
1
The overall caesarean
section rate is close to 33% with an overall
perinatal mortality of 16 per 1000. This study
aims to identify postnatal concerns in the year
after delivery.
STRENGTH AND LIMITATIONS OF THIS STUDY
⇒ This is a large cohort study of all women who deliv-
ered in a referral centre in a 1-year period.
⇒ Baseline information at delivery and postnatal peri-
od is collected prospectively.
⇒ Follow-up of postnatal women and their offspring
will be done at 3, 9 and 18 months.
⇒ Unscheduled visits of women or offspring to a care
provider and the indications for these visits will be
collated.
⇒ Follow-up will be done through a physical visit and/
or telephonically.
on October 13, 2023 by guest. Protected by copyright. http://bmjopen.bmj.com/ BMJ Open: first published as 10.1136/bmjopen-2022-063497 on 19 December 2022. Downloaded from