Bottle-feeding an infant feeding modality: An integrative literature review

Bottle-feeding practice and its associated factors among mothers of children aged 0 to 23 months in sub-Saharan Africa: a multi-level analysis of demographic and health surveys (2015-2022)

BACKGROUND

Avoidance of bottle feeding is recommended as it interferes with optimal suckling behavior, is difficult to keep clean, and is an important route for the transmission of pathogens. However, there is a current shift towards breastfeeding for a short period and the introduction of bottle feeding in both the developed and developing worlds. Bottle-feeding practice and its individual- and community-level determinants are not addressed in sub-Saharan Africa. Therefore, this study aimed to fill this gap and assess the pooled prevalence and associated factors of bottle feeding among mothers of children less than 23 months of age.

METHODS

Data from the recent demographic and health surveys of 20 countries in sub-Saharan Africa conducted between 2015 and 2022 were used. A total weighted sample of 86,619 mother-child pairs was included in the current study. Multilevel mixed-effects logistic regression was used to determine the factors associated with the outcome variable. Intra-class correlation coefficient, likelihood ratio test, median odds ratio, and deviance (-2LLR) values were used for model comparison and fitness. Finally, variables with a p-value < 0.05 and an adjusted odds ratio with a 95% confidence interval were declared statistically significant.

RESULTS

The overall pooled prevalence of bottle feeding among mothers of children aged 0 to 23 months in sub-Saharan Africa was 13.74% (95% CI: 13.51%, 13.97%). Factors like maternal age [AOR = 1.09; 95% CI (1.04, 1.14)], educational status [AOR = 2.83; 95% CI (2.58, 3.10)], marital status [AOR = 1.16; 95% CI (1.09, 1.24)], maternal occupation [AOR = 0.76; 95% CI (0.73, 0.79)], media exposure [AOR = 0.80; 95% CI (0.76, 0.85)], wealth index [AOR = 1.21; 95% CI (1.15, 1.29)], sex of the household head [AOR = 1.17; 95% CI (1.12, 1.24)], family size [AOR = 1.06; 95% CI (1.01, 1.12)], number of under-five children [AOR = 1.11; 95% CI (1.04, 1.19)], place of delivery [AOR = 1.06; 95% CI (1.00, 1.12)], mode of delivery [AOR = 1.41; 95% CI (1.31, 1.52)], counseling on breastfeeding [AOR = 0.88; 95% CI (0.84, 0.92)], age of the child [AOR = 1.65; 95% CI (1.57, 1.75)], and residence [AOR = 1.64; 95% CI (1.56, 1.72)] were significantly associated with bottle-feeding practices.

CONCLUSION

Nearly one out of seven children aged 0 to 23 months received bottle feeding in sub-Saharan African countries. Older mothers, higher mothers' educational status, unmarried women, richest families, non-working mothers, exposed to media, female-headed households, large family size, having one under-five children, home delivery, cesarean delivery, children aged 6-11 months, and urban residence were significantly associated with an increased risk of bottle feeding. Breastfeeding promotion programs are advised to target mothers who are older, educated, working, rich, gave birth at home, have a large family size, are delivered by cesarean section, have children aged 6-11 months, and reside in urban areas to achieve a significant decrease in bottle feeding rates in sub-Saharan Africa.

Infant Bottle-Feeding: A Prospective Study of Infant Physiology and Parental Report Metrics

The aim of this study was to examine associations between parent reports of bottle-feeding behaviors and infant non-nutritive suck (NNS) on a pacifier as well as oral feeding skills during bottle-feeding. A prospective study was conducted. Full-term infants with no prior diagnosed feeding disorders were recruited at 3-months. Parents reported their infant's bottle-feeding behaviors using the Neonatal Eating Assessment Tool-Bottle-Feeding (NeoEAT-Bottle-Feeding), consisting of five domains: Infant Regulation, Energy and Physiologic Stability, Gastrointestinal Tract Function, Sensory Responsiveness, and Compelling Symptoms of Problematic Feeding. Infant NNS was measured using a custom pacifier, pressure transducer device, which yields the following NNS variables: duration (sec), frequency (Hz), amplitude (cmH20), cycles per burst, cycle amount, and burst amount. The Oral Feeding Skills (OFS) scale was used to measure the initial volume, transfer volume, proficiency, and rate of milk transfer during bottle feeding. Fifty-two infants (58% male) with reported prior bottle experience completed this study. NeoEAT-Bottle-Feeding Total score was significantly positively associated with NNS burst duration and NNS cycles per burst. The NeoEAT-Bottle-Feeding Energy and Physiologic Stability domain was significantly positively correlated with NNS cycles per burst. NeoEAT-Bottle-Feeding Gastrointestinal Tract Function domain score was significantly positively correlated with NNS duration, amplitude, and cycles per burst. There were no significant associations between NeoEAT-Bottle-Feeding domains and the OFS scale. The findings demonstrate that parent reports of problematic feeding at 3 months of age are associated with aspects of infant NNS physiology and not with oral feeding metrics during bottle-feeding. Parent reports of bottle-feeding behaviors, particularly pertaining to gastrointestinal issues, were associated with aspects of infant NNS. These data together will allow for a more nuanced understanding of infant feeding and will be beneficial in determining if infants have a feeding delay.

Prevalence and Impact of Feeding-Related Events on Hospital Stay in Preterm and Term Newborns

BACKGROUND

Nursing assessment of milk flow regulation and associated apnea, bradycardia, and desaturation (ABD events) contribute to considerations for the discharge of newborns from the acute care setting. Research regarding infant feeding-related (FR) events (sucking and swallowing difficulties) and ABD events in moderate to late-preterm and full-term infants is lacking.

PURPOSE

This study observes the impact of FR and ABD events during feeding on hospital length of stay (LOS) and healthcare utilization (cost) in moderate-to-late preterm newborns, as well as full-term infants.

METHODS

In a retrospective study, bottle-fed infants admitted to the level II specialty care nursery of an academic community hospital in Southern California were observed for FR and ABD events. Statistical analyses were used to determine the impact of FR events on adjusted LOS, to evaluate the interaction between FR event status and adjusted LOS on total hospital charges, and to assess the statistical independence between FR events and diagnostic-related group severity.

RESULTS

The full sample of patient records included 308 infants born between 32- and 44-week gestational age between April 1, 2018, and October 31, 2022. LOS was twice as long in infants who had FR events. Total median charges were higher in the group with FR events at $160,165 versus $64,380 with non-FR events.

IMPLICATIONS FOR PRACTICE AND RESEARCH

Increased knowledge in the epidemiology and nursing care of infants experiencing milk flow regulation and associated ABD events is critical for informing practices and guidelines related to the prevention of related morbidities.

Magnitude of bottle-feeding practice and associated factors among mothers of 0-24 months' children in Asella town, Oromia region, Ethiopia

BACKGROUND

Since bottle feeding has an impact on the effectiveness of breastfeeding and appropriate supplemental feeding, the World health organization recommends being avoided for infant and early child feeding. Thus, this study aimed to assess the level of the bottle-feeding practice and its associated factors among mothers of 0-24 month's children in Asella town, Oromia region, Ethiopia.

METHODS

Community-based cross-sectional study design was conducted from March 8-April 8, 2022, among a sample of 692 mothers of children aged 0-24 months. A multi-stage sampling technique was used to select the study subjects. Data were collected using a pretested and structured questionnaire by face-to-face interview technique questionnaire. The outcome variable bottle-feeding practice (BFP) was assessed using WHO and UNICEF UK healthy baby initiative BF assessment tools. Binary logistic regression analysis was used to identify the association between explanatory and outcome variables. Adjusted Odds ratio (AOR) with a 95% confidence interval was used to measure the strength of the association and a p-value < 0.05 was used to declare statistical significance.

RESULTS

A total of 692 mothers with mean age and standard deviation (SD) of 31.86 (± 4.87) participated in the study. The prevalence of bottle-feeding practice was 246(35.5% with 95% CI: (31.8, 39.5). Mothers who were government-employed (AOR: 1.64, 95% CI: 1.02, 2.64), mothers who delivered at home (AOR: 3.74, 95% CI: 2.58-5.42), mothers who did not attend postnatal care (AOR: 3.76, 95% CI: 2.60,5.44) and mother who had negative attitude (AOR: 1.94, 95%CI: 1.34,2.8) were significantly associated with bottle feeding practices.

CONCLUSION

The BFP were higher in the study area when compared with national reports of practices. The occupational status of the mothers, place of delivery, attending postnatal care, and attitude of the mothers were factors that increased bottle-feeding practice in the study area. Strengthening dietary behavioral modification for mothers who have children 0-24 months of the child to practice appropriate feeding is recommended.

Why have a bottle when you can have draught? Exploring bottle refusal by breastfed babies

Bottle refusal by breastfed babies is a scenario that has received surprisingly little attention in the literature, given the number of mothers who appear to be experiencing it globally and the subsequent negative impact it can have. In line with this, we undertook a study to explore mothers' views on why their breastfed baby refuses to bottle feed. A parallel, two-stage, exploratory qualitative design was employed using 30 semi-structured interviews and 597 online forum posts. Data were analysed using a thematic analysis, and a biopsychosocial model was applied resulting in four overarching themes being identified: 'Breastfeeding is the answer to everything….' 'Bottle feeding: an alien concept… 'Babies are individuals' and 'Find the right bottle and don't delay'. The psychological benefits of breastfeeding, not inherent in bottle feeding, appeared to underpin some mothers' views on their baby's refusal. Other mothers explained refusal as being down to a baby's biological expectation to be fed by the breast; therefore, bottle feeding was not a normal concept to them. A baby's individual personality and temperament were also suggested as contributing to the scenario and refusal was linked to babies disliking a certain brand of bottle and being introduced to it 'too late'. This study's findings point to a complex, multifactorial picture underpinning bottle refusal by breastfed babies, which transcends physical, psychological and biological concepts, and is influenced by socio-cultural norms surrounding infant feeding. Recognition of these contributing factors is needed to aid those supporting mothers experiencing the scenario and, importantly, to underpin mothers' decision-making around managing it.

Advantages of side-lying position. A comparative study of positioning during bottle-feeding in preterm infants (≤34 weeks GA)

BACKGROUND

The quality and safety of bottle-feeding in premature infants can be improved by optimal positioning. This study analysed the advantages of side-lying position (SLP) and semielevated position (SEP) during bottle-feeding in premature infants.

MATERIAL AND METHODS

A total of 42 neonates (n=42) born ≤34 weeks of gestational age were included in the study. Four feeding sessions-two in SLP and two in SEP- were analysed for each newborn. The level of saturation (SpO₂) and heart rate, which are the parameters assessing the physiological stability, were measured in the studied newborns. The other factors that were examined to determine the quality of feeding included the total time of decline of SpO₂ to ≤85%, level of the newborn's alertness measured using the Neonatal Behavioral Assessment Scale, and the frequency of choking episodes. The proportion of milk consumed (volume of milk consumed relative to the volume expected) and the feeding duration as well as the total time of feeding session were recorded.

RESULTS

SLP was safer in terms of the frequency of choking episodes. Choking episodes were more frequently observed with feeding in SEP (p<0.001). Moreover, the proportion of milk consumed by infants was statistically significantly higher in SLP (p<0.046) compared to SEP. No significant differences in the other tested parameters were noted in infants fed in SLP and infants fed in SEP.

CONCLUSIONS

This study demonstrated that SLP is effective in reducing the number of choking episodes during feeding. The proportion of milk consumed was better when the neonates were fed in SLP.

Bottle-feeding, a neglected area of learning and support for nurses working in child health: An exploratory qualitative study

Breastfeeding is the ideal infant feeding modality; however, the reality is some parents need or choose to use bottles to feed their infants. Parents who bottle-feed have been identified as not receiving adequate levels of bottle-feeding information and advice from health professionals. This study's aim was to explore nurses' knowledge of the components in the bottle-feeding act. Twenty-one nurses working in early parenting residential units participated in three focus groups. Three themes were identified relating to nurses' bottle-feeding knowledge: experience not evidence-based, it is hard to know what to advise, we will support whatever choice they make. The nurses identified a deficit in their knowledge, education and training related to the components of bottle-feeding. The nurses struggled with their interpretation of infant feeding policies and the provision of bottle-feeding information to parents. Nurses working in child and family health were motivated to inform, educate and enable parents to confidently make decisions concerning infant feeding. The healthcare system and the infant feeding policy drivers appear to have a mixed and at times negative impact on nurses' practice. Further research is required across a larger population of nurses.

Comprehensiveness of infant formula and bottle feeding resources: A review of information from Australian healthcare organisations

The use of infant formula is widespread internationally. In Australia, 55% of infants receive formula before 6 months of age, with higher rates among disadvantaged communities. Infant formula use can contribute to childhood overweight and obesity, through formula composition and feeding behaviours, such as adding cereal to bottles and parental feeding style. While information abounds to promote and support breastfeeding, formula-feeding parents report a paucity of advice and support; many rely on formula packaging for information. This study systematically searched and reviewed online resources for infant formula and bottle feeding from Australian governments, health services, hospitals, and not-for-profit parenting organisations. A comprehensive search strategy located 74 current resources, mostly for parents. Researchers evaluated the resources against best practice criteria derived from Australian government and UNICEF guidelines on six topics. They assessed how comprehensively the resources addressed each topic and whether the resources provided all the information necessary for parents to understand each topic. The mean 'comprehensiveness' rating for topics across all resources was 54.36%. However, some topics were addressed more fully than others. Information on 'discussing infant formula with health workers' and on 'preparing infant formula' was more frequently accurate and comprehensive. However, there was much less comprehensive information on 'using infant formula', including amounts of formula to feed, use of bottle teats, appropriate bottle-feeding practice and responsiveness to infant satiety cues. Over half the resources were written at an acceptable reading level.

Breastfeeding in the context of the COVID-19 pandemic: A discussion paper

Breastfeeding offers one of the most fundamental global health benefits for babies. Breastmilk is lifesaving, providing not only nutrition but immunologic benefits and as such is strongly supported by the World Health Organization and leading healthcare associations worldwide. When the COVID-19 pandemic started in 2020, the impact of the restrictions to prevent the spread of the disease created challenges and questions about provision of safe, quality care, including breastfeeding practices, in a new 'normal' environment. Mothers were temporarily separated from their babies where infection was present or suspected, parents were prevented from being present on neonatal units and vital breastfeeding support was prevented. This discussion paper provides an overview of essential areas of knowledge related to practice for neonatal nurses and midwives who care for breastfeeding mothers and babies, in the context of the COVID-19 pandemic and the latest global guidance. Three areas will be discussed; the protective benefits of breastfeeding, keeping breastfeeding mothers and babies together and supporting mothers to breastfeed their babies. Finally, care recommendations are presented to serve as a summary of key points for application to practice for neonatal nurses and midwives.

Tongue movements and teat compression during bottle feeding: A pilot study of a quantitative ultrasound approach

Nutritive sucking is a complex process, essential to proper growth and development. The complexity of this oral sensorimotor activity includes movements of the tongue and jaw. Tongue movements during nutritive sucking can only be visualized with instrumented methods such as ultrasound. Until now, studies using ultrasound during nutritive sucking performed measurements on each individual ultrasound image frame, which was quite time-consuming. The aim of this pilot study was to automatically process ultrasound video recordings in healthy infants during bottle feeding to measure teat compression and tongue movements. Tongue movements and teat compression during bottle feeding were visualized and recorded using 2D dynamic ultrasound imaging. A custom-made semi-automated analysis-routine was developed. Teat compression was expressed as the median difference in teat diameter during the recording. Tongue movements were expressed as the displacement of the tongue along four evenly distributed image lines and the corresponding time-shifts between those lines. The recordings of 12 out of 14 participants were adequate for the analysis of tongue movements. Teat compression could be analysed in the recordings of 6 participants. The reliability of our analysis-routine was considered to be good, and the analysis-routine was more time-efficient than manual frame-by-frame analysis. This quantitative analysis-routine is a promising tool, that can be used efficiently and accurately in the future to collect normative data that can serve as reference values to distinguish normal from abnormal tongue movements in infants with feeding difficulties.

Bottle-feeding an infant feeding modality: An integrative literature review

Bottle-feeding is an infant feeding modality that has been in existence since ancient times, and currently, a significant number of infants are being fed via a bottle with either breastmilk or formula. Although research on bottle-feeding has continued, it exists in fragmented, often small studies that focus on singular aspects of feeding an infant using a bottle, with limited information on the bottle-feeding act. Systems theory was the approach used to define the act of bottle-feeding and identify the parts within this act. Health databases were searched using MeSH terms. A summary of the studies are included. The findings of this review revealed that healthy term bottle-feeding infants use similar tongue and jaw movements, can create suction and sequentially use teat compression to obtain milk, with minimal differences in oxygen saturation and SSB patterns, when compared with breastfeeding infants. Bottle and teat characteristics were revealed to affect infant feeding and milk intake. An infant's milk intake during feeding was shown to have a strong association with the interaction between the infant and parent/caregiver. With the issue of who controls the feed, mother or infant, likely to affect an infant's ability to self-regulate their milk intake. Redefining bottle-feeding as a holistic system identifies the interrelationship of the various parts which will improve the understanding of the reciprocal nature of infant feeding. To optimize bottle-feeding outcomes, further research is required on parents' and health professionals' knowledge and understanding of the parts within the act of bottle-feeding.