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Article History

Received: 14 July 2022

Accepted: 4 November 2022

First Online: 9 December 2022

Declarations

:

: Ethical approval for the research was received from the Population Health Services Research Ethics Committee (Reference Number 2021/ETH00887), on July 23rd, 2021. All potential participants will be provided with a Participant Information Statement (PIS). Consent will be obtained by site trial staff for all maternity service leaders and clinicians who participate in the trial.<i>Clinicians:</i> participation of clinicians is voluntary. Participant Information Statements for clinicians will explicitly state that the decision to participate or not participate will not influence their professional standing or the care of any of their patients/clients in any way.<i>Maternity service leaders:</i> the participation of maternity service leaders is voluntary. The PIS for leaders will explicitly state that the decision to participate or not participate will not influence their professional standing or the care of any of their patients/clients in any way. The PIS will also detail that information shared in interviews will be de-identified before publication or dissemination.<i>Pregnant and postpartum women:</i> participation of postpartum women (telephone interviews) is voluntary. The PIS confirms that participation is entirely voluntary and will not affect the antenatal or postnatal care provided to women from the service in any way. The PIS includes an option for women to opt-out during pregnancy by texting the research midwives. For those that do not opt out, research midwives will seek verbal consent for participation from postpartum women, which will be recorded in an online database. Separate consent will also be sought for the biochemical verification of abstinence for those postpartum women who report having stopped smoking at least 7 days before the birth of their baby, and who also report remaining abstinent. Research midwives will record verbal consent in the online database.

: Not applicable.

: The authors declare that they have no competing interests.