Background: Evidence has shown that SMS text message-based health education is effective in improving exclusive breastfeeding. However, there is limited evidence on the development and design of SMS messaging intervention targeting fathers and mothers. Method: This is the formative assessment and intervention design for a larger trial targeting both fathers and mothers for breastfeeding support in Tigray, Ethiopia. A total of 42 parents of children less than 2 years of age were involved in the design process that also included nutrition experts. We recruited 128 expectant couples to the intervention (1-month antenatally) who continued for 3 months postnatally. Results: Sixteen messages were developed specific to feeding in the antenatal and postnatal periods. These messages were revised with parents and experts and pretested with parents. Over 4 months 87% of fathers and mothers received 3 or more SMS text messages. All fathers and 97% of mothers read the weekly SMS text messages. Almost 90% of mothers and fathers indicated their willingness to continue to receive SMS text messages related to infant feeding. Conclusion: Development of SMS based breastfeeding interventions should involve the target population in content design. The role of experts and target population in the co-design process is also crucial.
The intervention was developed as part of a study exploring the use of a mHealth intervention targeting both mothers and fathers to improve exclusive breastfeeding to 3 months. It took place in Mekelle, the capital city of the regional state of Tigray in February 2018 to March 2019. This was a three-phase process, phase-1: formative assessment; phase-2: co-design of SMS message and pretesting; phase-3: acceptability testing. The detail of the design is described below. The formative assessment for the intervention included exploring the attitudes, knowledge, beliefs, barriers, and enablers of exclusive breastfeeding as well as experiences of mobile phone use, perceived benefits of using a mobile phone, as well as timing, and frequency preferences for receiving SMS text messages for mothers and fathers. Focus group discussions (FGDs) were undertaken with mothers (two groups), and fathers (two groups), resulting in a total of 42 participants. All mothers and fathers had a child less than 2 years of age, access to a personal mobile phone, and were able to read and understand the local language (Tigrigna) and who had provided informed written consent were eligible to participate. Either the mother or the father was included in the FGD but not both. Details of methods and data analysis are described in the formative studies [17, 18]. Codesign is a process that involves all stakeholders throughout the design process [19]. This is an active collaboration between researchers, users, and developers to understanding the problem, behaviour, and concept development. Involvement of stakeholders during the design of an intervention helps in developing socially, culturally, and contextually acceptable approaches that work within the contexts of the target populations [20, 21]. Text message content was developed that related to predominantly feeding behaviours relevant antenatally, and in the postpartum period and targeted mothers and fathers separately. The initial text messages were developed based on the findings from the FGD and on best-practice by the authors in English, and then translated to the local language (Tigrigna). A total of 32 messages were developed equally distributed between fathers and mothers with the aim to send a text message once a week for 1 month antenatally and for 3 months after the birth of the baby. These messages were then provided to two paediatricians, two paediatric nurses, and two nutritionists who spoke, read and understood Tigrigna. Experts were asked to provide feedback on the content and wording of the text messages. After incorporating the expert feedback, the SMS text messages were reviewed by an additional five fathers and five mothers who had a child less than 2 years of age, access to a personal mobile phone, and were able to read and understand Tigrigna were recruited from the same two health centres as phase-1. Parents provided their consent to participate in the review discussion. Parents were given a chance to read the contents of the SMS before the discussion and were able to describe how the messages made them feel, the clarity of the message, language used or wording, length of the message, and to provide any additional feedback. After development of the SMS text messages, the messages were uploaded into a freely available bulk SMS software, FrontlineSMS (http://www.frontlinesms.com). This system was used to send the messages using the EthioTelecom (Ethiopian Telecommunication) network, the sole-provider of telecommunications in Ethiopia. This software was installed on a personal computer and was connected to a mobile phone with a local SIM card, which helped to access the local network. The use of the FrontlineSMS was to enable the sending of bulk SMS. FrontlineSMS text messaging had been used in a previous breastfeeding intervention [22]. The software is also able to track sent, failed, and the pending status of text messages, which is important in managing the process and documenting SMS delivery. This data was collected each time a message was sent. A list of study participant contacts was created with separate groups for mothers and fathers. Messages were sent every Saturday morning to each group in each study arm. The SMS text messages were pretested with five couples who had a child less than 6 months, could read Tigrinya, and had any type of mobile phone were eligible to participate. Mothers were contacted through their healthcare providers at the health facility during their postnatal clinic visit, immunization, or maternal childcare service appointment. Partners of mothers who agreed to participate were contacted through urban health extension workers. All participants provided informed consent. The participants received a weekly SMS text messages for a period of 1 month. After completing the pre-test, the study participants were requested to provide feedback on simplicity, local and cultural acceptability in terms of language usage and size, and delivery rate of SMS text messaging. Each participant was telephoned to ascertain their satisfaction with the text messaging and if any changes needed to be made. As described in our previous study [23] pregnant mothers and their partners were recruited from three health centres. Participant couples were in their third trimester stage of pregnancy, had access to a personal mobile phone, and were able to read and understand Tigrigna. Each health centre was assigned to one arm of the study; arm 1—mother and father intervention group (both received individual breastfeeding SMS on their own mobile), arm 2—mother only intervention (only the mother received breastfeeding SMS), and arm 3—control group. A total of 128 parents were enrolled in the intervention during their last trimester (43 couples in arm-1, 43 couples in arm-2, and 42 couples in arm-3). Participants in the intervention groups, fathers and mothers in arm 1 and only mothers in arm 2, received 1 month of antenatal SMS, and 3-months of postnatal SMS. Due to adverse outcomes, we lost two couples from each arm. Using face-to-face or telephone interview, 41 fathers from arm—1 and 82 mothers from arms—1 and 2 provided feedback the SMS messages. At the end of each month after giving birth, feedback was obtained on how many SMS messages they received, if they read the message, if they shared the message content with their partner or other people. In addition, at the third month participants also provided feedback on the convenience of the SMS based breastfeeding education, willingness to continue to receive breastfeeding SMS text messages and how influential the SMS based breastfeeding intervention was about breastfeeding. Data were entered IBM SPSS Statistics version 23 (IBM Corp. Released 2015. IBM SPSS Statistics for Windows, Version 23.0. Armonk, NY: IBM Corp). Descriptive statistics were conducted to describe message delivery and satisfaction for fathers and mothers.
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