Interviews explore participants' unique knowledge and experience of routine data recording and use in labour wards and operating theatres as part of public healthcare service provision around the time of birth (in Bangladesh and Tanzania). This richness of information is essential for the research, but increases the risk of participant recognition through indirect identifiers. To protect participant confidentiality, transcripts are available through controlled access. Interested researchers are invited to complete the request form. Applications will be reviewed by the study team, in conjunction with the research ethics committees at the International Centre for Diarrhoeal Research, Bangladesh (icddr,b), Ifakara Health Institute, Tanzania, and the London School of Hygiene & Tropical Medicine (LSHTM), United Kingdom. To support this request, applicants are asked to provide the associated research protocol and evidence of ethics approval for their study. If approved, applicants will be required to sign a Data Transfer Agreement (DTA) to ensure that participant confidentiality is maintained in accordance with the study’s original ethical approvals.