Seeing it through their eyes: a qualitative study of the pregnancy experiences of women with a body mass index of 30 or more

Factors Influencing Weight Management in Pregnant Women with Overweight or Obesity: A Meta-Synthesis of Qualitative Studies

BACKGROUND

Overweight and obesity have multiple negative consequences for the health of both the mother and the child. Interventions to prevent excessive weight gain during pregnancy have had varying success, and the proportion of pregnant women who exceed national guidelines for weight gain continues to increase.

OBJECTIVE

To investigate the influence of factors on weight management among pregnant women with overweight or obesity.

METHODS

This meta-synthesis of qualitative studies involved searching databases PubMed, Embase, Cochrane, Scopus, and Web of Science. The databases were searched on October 4, 2022, and the search was updated on April 21, 2023. The screening of titles, abstracts, and full texts was conducted utilizing Covidence software. The quality assessment of the articles was performed using the Critical Appraisal Skills Programme checklist. The Enhancing Transparency in Reporting the Synthesis of Qualitative Research statement was used to enhance transparency in reporting. A meta-aggregation approach was used to guide the data extraction and synthesis.

RESULTS

A total of 46 studies with appropriate Critical Appraisal Skills Programme scores were included for qualitative synthesis. Findings were extracted and integrated into 4 themes: psychological factors (personally driven negative emotions and society-driven negative emotions), social factors (societal attitudes and beliefs and social support resources), factors related to education and counseling (information provision and communication), and factors associated with effective care (provided care components and the method of providing effective care).

CONCLUSIONS

To improve weight management during pregnancy, health care providers should provide tailored and individualized recommendations that take into consideration the factors influencing these women.

The makings of a maternal obesity epidemic: A meta-narrative review

STUDY BACKGROUND

The prevalence and complications of maternal obesity are well reported; with a hegemonic medicalised view leading to women's pregnant bodies being 'managed'. We aimed to address current knowledge gaps by exploring the literature across research traditions and overtime to better understand the experiences of maternity care for women living with obesity, in relation to choice, consent and control.

METHODS

A systematic review using meta-narrative methods. Identification of studies included a scoping phase involving experts, hand searching and database browsing and a systematic searching phase. Seven databases (MEDLINE, MIDIRS, CINAHLComplete, Scopus, SocINDEX, PsycINFO, SPORTDiscuss) were searched with no date or geographical restriction. Non- English language studies were excluded. Two authors appraised quality prior to data extraction and synthesis. Data were tabulated, and women's experiences conceptualised in relation to choice, consent and control, first, by research tradition to reveal the unfolding storyline, secondly emergent narratives were synthesised into meta-themes.

RESULTS

Twenty-four studies were included, from six research traditions. Of these, twenty-one were qualitative, two were quantitative, and one study utilised a mixed method design. Studies spanned twenty-six years from 1994 to 2020. Across research traditions, four themes were evident, 'women's beliefs and experiences of weight', 'social determinants', 'being risked-managed' and 'attitudes of caregivers'. Over time, management of maternal obesity has moved from a focus on weight gain and diet as a woman's issue, to weight being pathological resulting in increased medicalisation, to a renewed focus on lifestyle through the public health arena. It suggests that lack of choice over care can reduce women's perception of control over their pregnancy and birth experience.

CONCLUSION

Increased medicalisation of maternal obesity, which includes defining and managing weight as pathological can limit women's choice and control over their maternity care. There is a need for national and local policy development which includes women in the process. It is important that women's views are heard, understood and acted upon so that a balance can be achieved, avoiding over medicalisation, yet ensuring mortality and morbidity risks are minimised.

High-risk antenatal women's perceptions of dietitian appointments and information

Problem

The dietitian service at a metropolitan health service in Queensland, Australia has a non-engagement rate for high-risk antenatal women of 50%.

Aim

Determine which attributes are related to non-attendance at dietitian appointments, and women's perceptions and attitudes towards dietitian appointments during pregnancy.

Methods

An explanatory mixed-methods design was utilised, with first phase including 103 antenatal women referred to a dietitian in 2021 and compared the attributes of those who attended with those who did not engage. Queensland Health electronic databases were used to collect attribute data, which were then analysed with Jamovi (version 1.6) for descriptive, correlational, multivariate analyses of variance MANOVA. Second phase included seven semi-structured interviews with women attending a dietitian appointment, and subsequently analysed through thematic analysis.

Results

Distance from clinic was not related to clinic attendance, and women reported they would attend regardless of distance or work status. Non-attendance was related to higher gravidity, parity, and if referred for obesity, but not previous gastric sleeve or underweight referral. Six themes were identified from the interview data: "Women want to be treated like an individual," "It's all about expectations," "Midwives hold the key," "Preferences in receiving dietary information," "Weight has been a long-term problem and is a sensitive topic," and "Barriers to attendance."

Conclusion

Antenatal services can adjust service delivery to improve engagement in weight management services during pregnancy. Telehealth appointments may reduce non-engagement due to distance from clinic. Demystifying the dietitian appointment, ensuring non-judgemental referral processes and collaboration between midwives and dietitians will ensure that women value the service.

Clinical guidelines for the management of weight during pregnancy: a qualitative evidence synthesis of practice recommendations across NHS Trusts in England

BACKGROUND

Women who enter pregnancy with a Body Mass Index above 30 kg/m² face an increased risk of complications during pregnancy and birth. National and local practice recommendations in the UK exist to guide healthcare professionals in supporting women to manage their weight. Despite this, women report inconsistent and confusing advice and healthcare professionals report a lack of confidence and skill in providing evidence-based guidance. A qualitative evidence synthesis was conducted to examine how local clinical guidelines interpret national recommendations to deliver weight management care to people who are pregnant or in the postnatal period.

METHODS

A qualitative evidence synthesis of local NHS clinical practice guidelines in England was conducted. National Institute for Health and Care Excellence and Royal College of Obstetricians and Gynaecologists guidelines for weight management during pregnancy constructed the framework used for thematic synthesis. Data was interpreted within the embedded discourse of risk and the synthesis was informed by the Birth Territory Theory of Fahy and Parrat.

RESULTS

A representative sample of twenty-eight NHS Trusts provided guidelines that included weight management care recommendations. Local recommendations were largely reflective of national guidance. Consistent recommendations included obtaining a weight at booking and informing women of the risks associated with being obese during pregnancy. There was variation in the adoption of routine weighing practices and referral pathways were ambiguous. Three interpretive themes were constructed, exposing a disconnect between the risk dominated discourse evident in the local guidelines and the individualised, partnership approach emphasised in national level maternity policy.

CONCLUSIONS

Local NHS weight management guidelines are rooted in a medical model rather than the model advocated in national maternity policy that promotes a partnership approach to care. This synthesis exposes the challenges faced by healthcare professionals and the experiences of pregnant women who are in receipt of weight management care. Future research should target the tools utilised by maternity care providers to achieve weight management care that harnesses a partnership approach empowering pregnant and postnatal people in their journey through motherhood.

“Everything is revolved around me being heavy … it’s always, always spoken about.” Qualitative experiences of weight management during pregnancy in women with a BMI of 40kg/m2 or above

Introduction

Maternal weight management services have been recognised as a good opportunity to influence lifestyle and dietary behaviour of mothers and families. Exploring women’s views of maternal weight management services is paramount to understand what constitutes the most suitable service. This study therefore explored experiences among women with a raised body mass index (BMI) of maternal weight management service provision and the barriers and facilitators to weight management during pregnancy.

Method

Thirteen women with a BMI≥40kg/m² undertook semi-structured interviews around weight management experiences during pregnancy. Interviews were audio recorded and transcribed verbatim. Inductive thematic analysis was undertaken.

Results

Four themes emerged. 1). "Understanding where I am at" showed current readiness and motivation of women varied, from being avoidant to being motivated to make changes. 2). "Getting information" revealed inconsistent information provision during pregnancy. Women particularly wanted practical advice. Some attempted to find this for themselves from friends or the internet, however this left some women feeling confused when different sources provided inconsistent advice. 3). "Difficulties I face" identified physical, emotional and financial barriers and the strategies some women used to overcome these. 4). "Encountering professionals–a mixed experience" demonstrated women wanted to be treated with respect and sensitivity and that how weight management information was addressed was more important than who provided it. The fine line professionals tread was demonstrated by women thinking that they had received inadequate information and yet too much focus was placed on their weight and the associated risks during pregnancy without practical solutions to their weight management challenges.

Discussion

Women were empowered when practical advice was provided, not just the continual repetition of the risks of being obese during pregnancy. Antenatal weight management services need to be clear, sensitive and respectful. Services centred on individual women’s needs and on their current and previous experiences are required. The psychological and social contexts of weight management also need to be addressed.

Women's Suggestions for How To Reduce Weight Stigma in Prenatal Clinical Settings

OBJECTIVE

To describe the experiences of weight stigma in prenatal clinical settings among high-risk pregnant women living with obesity and to obtain women's perspectives regarding changes to prenatal health care practices that may reduce weight stigma.

DESIGN

Qualitative descriptive study.

SETTING/LOCAL PROBLEM

High-risk obstetrics clinic. Weight stigma experienced in prenatal clinical settings can negatively influence maternal health and well-being as well as communication with health care providers.

PARTICIPANTS

Nine pregnant women with obesity who were receiving specialized prenatal care in their third trimester.

INTERVENTION/MEASUREMENTS

Women participated in semistructured telephone interviews. Data were inductively analyzed using a content analysis, whereby coded data were organized to represent experiences of or suggestions provided by pregnant women to reduce weight stigma in prenatal clinical settings.

RESULTS

Experiences of weight stigma included poor communication, generalizations made about health and lifestyle behaviors, and focusing only on excess body weight during clinical appointments as the cause of negative health outcomes. To reduce weight stigma, women suggested that health care providers practice sensitive communication, offer individualized care for weight management, and reduce the focus on body weight by also independently addressing comorbidities or other health indicators.

CONCLUSION

Women interviewed for this study provided suggestions that can be implemented in prenatal clinical settings to reduce weight stigma and improve the delivery of equitable health care.

Summarizing recommendations to eliminate weight stigma in prenatal health care settings: A scoping review

OBJECTIVE

As the prevalence of obesity increases, more women are at risk of potentially experiencing weight stigma in prenatal health care settings. The objective of this scoping review was to summarize the primary literature assessing potential causes of weight stigma in prenatal health care settings and synthesize recommendations for health care providers to improve clinical practice.

METHODS

A search strategy was developed combining the terms pregnancy, weight stigma, obesity, and prenatal care. A systematic search was completed in the following databases: Medline, EMBASE, PsycInfo, CINAHL, Opengrey, and Proquest.

RESULTS

Eighteen resources were included in this review, of which 17 were qualitative, and one was a mixed-methods study design. Weight stigma occurred in prenatal health care settings when providers: avoided weight-related discussions, assumed lifestyle behaviors, and had poor communication when discussing risks associated with obesity. Recommendations to prevent weight stigma included: offering sensitivity training to discuss obesity during pregnancy, implementing a patient-centred approach, including evaluating individual health behaviors, and providing educational resources to patients explaining potential risks and referrals.

CONCLUSION

This review summarizes recommendations to eliminate weight stigma in prenatal health care settings.

PRACTICE IMPLICATIONS

These recommendations can be implemented in clinical practice and can improve the delivery of prenatal care.

What are the experiences of women with obesity receiving antenatal maternity care? A scoping review of qualitative evidence

PROBLEM

Obesity is a major public health problem and is rising in prevalence in child-bearing women. The complications of pregnancy in women with obesity are well documented. Pregnant women with obesity require different maternity care considerations to normal weight women. How women respond to the care of health professionals, determines how likely they will be to engage with it, and thus research into the current care experiences of women with obesity is valuable.

OBJECTIVE

The purpose of this scoping review was to examine the evidence of the antenatal maternity care experiences of women with obesity (BMI≥30kg/m²).

METHOD

A systematic literature search was conducted for English language publications 2008-2018 using Medline, Scopus, PsycINFO and CINAHL. Following critical appraisal, and a search of the reference lists of primary articles, 17 articles resulted for this review. A thematic synthesis process was used to collate the findings.

FINDINGS

Four major themes were identified: 1) inconsistent or absent information regarding weight management, 2) the stigma and stereotyping associated with their obesity, 3) medicalisation and depersonalisation of pregnant women with obesity, and 4) a desire for information and need for change.

CONCLUSION

The findings suggested that based on women's experiences there is a need for improved education and communication for health care professionals when caring for pregnant women with obesity. Some conflicting information from women in the studies highlight the need for further research in the area, and the implementation of individualised care and continuity of care for pregnant women with obesity.

Obesity in Pregnancy - Patient-Reported Outcomes in Qualitative Research: A Systematic Review

The purpose of this study was to determine the clinical and non-clinical outcomes that pregnant women with obesity value as pertaining to their health and that of their babies. In this systematic review of the qualitative literature, a search of four databases was conducted for studies using qualitative methods in pregnant women with obesity. From the included studies, the review synthesized relevant themes representing the voiced concerns and perceived benefits of and barriers to the uptake of interventions, to yield patient-reported outcomes (PROs). PROs were categorized into domains according to the published taxonomy of outcomes in medical research. Of the 89 identified studies, 27 were included, none of which were primarily intended to elicit PROs. A total of 256 PROs and 7 distinct themes were identified. Only 13% of PROs represented physiological or clinical outcomes, whereas 21% represented the core area of emotional functioning or well-being, and 15% represented the area of delivery of care. The most frequently voiced concern was inadequate health care provider support (60%), and women considered intervention-specific challenges to be the greatest barriers to the uptake of interventions (34%). This study synthesized the qualitative evidence of concerns that pregnant women with obesity have regarding their pregnancy and postpartum care, as well as specific barriers they perceive to the uptake of interventions. In addition, this study revealed that clinical outcomes, which are most often reported in clinical trials, comprise only a minority of outcomes considered important by these women. A core outcome set that adequately incorporates PROs is required to inform the conduct of future trials in pregnant women with obesity.

Perceptions of risk and influences of choice in pregnant women with obesity. An evidence synthesis of qualitative research

Background

Between 7–35% of the maternity population are obese in high income countries and 1–40% in lower or middle-income countries. Women with obesity are traditionally limited by the choices available to them during pregnancy and birth because of the higher risk of complications. This evidence synthesis set out to summarise how women with obesity’s perceptions of pregnancy and birth risk influence the care choices that they make.

Methods

A search of medical and health databases for qualitative studies written in the English language, published Jan 1993—April 2019 and reporting on pregnant women with obesity’s perception of risk and influence of pregnancy and birth choices. Data was extracted by two reviewers onto a questions framework and then analysed using a thematic synthesis technique. Confidence in the qualitative findings was assessed using GRADE-CERQual.

Results

23 full texts were included. The common themes on perception of risk were: ‘Self-blame arising from others’ stereotyped beliefs ‘, ‘Normalisation’, ‘Lack of preparation’, ‘Fearful acceptance and inevitability’ and ‘Baby prioritised over mother’. For influence of choices, the themes were: ‘External influences from personal stresses’, ‘Restrictive guidelines’, ‘Relationship with healthcare professional’ and ‘Perception of Risk’.

Conclusions

Evidence on what influences women with obesity’s pregnancy choices is limited. Further research is needed on the best methods to discuss the risks of pregnancy and birth for women with obesity in a sensitive and acceptable manner and to identify the key influences when women with obesity make choices antenatally and for birth planning.

An antenatal wish list: A qualitative systematic review and thematic synthesis of UK dietary advice for weight management and food borne illness

OBJECTIVES

To understand UK women's experiences of antenatal dietary advice for risk of food borne illness and weight gain.

DESIGN

A systematic review and thematic synthesis of peer-reviewed qualitative studies. PubMed, MEDLINE, CINAHL and PMC databases were searched for articles published from January 2008 to June 2018. The search strategy combined terms for pregnancy with terms for body composition, weight change, food safety, nutrition, diet and qualitative terminology. Studies were eligible for inclusion if (1) they explored experiences of implementing advice received during pregnancy for nutrition, physical activity and/or weight gain, and (2) participants were women who had experienced maternity care in the UK. Study quality was appraised using the Critical Appraisal Skills Programme (CASP) qualitative research appraisal tool.

FINDINGS

Of 25,688 articles identified by the search strategy, 20 studies were identified that met the inclusion criteria. Five major themes were recognised: control, barriers to diet and exercise, motivators, relationship with weight, and information, with a further 12 subthemes. The majority of studies reported on weight gain (n = 10).

KEY CONCLUSIONS

Evidence shows that UK antenatal dietary advice is currently inconsistent, vague and overwhelming despite pregnancy being an excellent time for lifestyle change. Women are primarily driven by the health of their baby and desire support to facilitate positive changes.

IMPLICATIONS FOR PRACTICE

Findings outline a wishlist which highlights a desire for tailored information on preventing weight gain, dietary requirements, safe physical activity and a deprioritisation of food safety guidelines. This provision should be delivered by HCP. e.g. midwives, in a sensitive and supportive way to bridge the gap between women's needs and the current antenatal provision.

"…or else I close my ears" How women with obesity want to be approached and treated regarding gestational weight management: A qualitative interview study

INTRODUCTION

The importance of helping pregnant women maintain a healthy lifestyle and prevent excessive gestational weight gain is well recognized, but pregnant women do not always perceive communication about body weight as respectful or helpful. Furthermore, fear of inducing shame or guilt can prohibit some midwives from talking about body weight, especially if the woman has obesity. We aimed to explore what women of reproductive age with obesity regard to be the most important and relevant aspects when discussing gestational weight management.

METHODS

Qualitative interview study using focus groups and individual semi-structured interviews with 17 women of reproductive age (19-39 y) with obesity. Thematic analysis was used to analyze the data.

RESULTS

We identified three themes: 1) Importance of obtaining vital medical information; 2) A wish to feel understood and treated with respect; 3) Midwives' approach is crucial in sensitive key situations, which include bringing up the subject of body weight, weighing, providing weight-related information, coaching lifestyle modification, dealing with emotional reactions and ending a conversation.

CONCLUSIONS

A majority of the interviewed women wished to receive information about risks about obesity and gestational weight gain, and recommendations on weight management. However, the risk of midwives offending someone by raising the topic may be increased if the pregnant woman believe that gestational weight gain is uncontrollable by the individual. Also, several situations during maternity care meetings can be stigmatizing and make women less receptive to advice or support. Women suggest that a good working alliance is likely to be achieved if midwives have knowledge about the causes of obesity, take interest in the patients' background, have a non-judgmental approach and refrain from giving unsolicited advice.

Enablers and barriers to physical activity in overweight and obese pregnant women: an analysis informed by the theoretical domains framework and COM-B model

Background

Obesity during pregnancy is associated with increased risk of gestational diabetes mellitus (GDM) and other complications. Physical activity is a modifiable lifestyle factor that may help to prevent these complications but many women reduce their physical activity levels during pregnancy. Interventions targeting physical activity in pregnancy are on-going but few identify the underlying behaviour change mechanisms by which the intervention is expected to work. To enhance intervention effectiveness, recent tools in behavioural science such as the Theoretical Domains Framework (TDF) and COM-B model (capability, opportunity, motivation and behaviour) have been employed to understand behaviours for intervention development. Using these behaviour change methods, this study aimed to identify the enablers and barriers to physical activity in overweight and obese pregnant women.

Methods

Semi-structured interviews were conducted with a purposive sample of overweight and obese women at different stages of pregnancy attending a public antenatal clinic in a large academic maternity hospital in Cork, Ireland. Interviews were recorded and transcribed into NVivo V.10 software. Data analysis followed the framework approach, drawing on the TDF and the COM-B model.

Results

Twenty one themes were identified and these mapped directly on to the COM-B model of behaviour change and ten of the TDF domains. Having the social opportunity to engage in physical activity was identified as an enabler; pregnant women suggested being active was easier when supported by their partners. Knowledge was a commonly reported barrier with women lacking information on safe activities during pregnancy and describing the information received from their midwife as ‘limited’. Having the physical capability and physical opportunity to carry out physical activity were also identified as barriers; experiencing pain, a lack of time, having other children, and working prevented women from being active.

Conclusion

A wide range of barriers and enablers were identified which influenced women’s capability, motivation and opportunity to engage in physical activity with “knowledge” as the most commonly reported barrier. This study is a theoretical starting point in making a ‘behavioural diagnoses’ and the results will be used to inform the development of an intervention to increase physical activity levels among overweight and obese pregnant women.

Electronic supplementary material

The online version of this article (10.1186/s12884-018-1816-z) contains supplementary material, which is available to authorized users.

Being targeted as a "severely overweight pregnant woman" -A qualitative interview study

Background

Pregnant women with a body mass index (BMI) ≥ 30 kg/m² have been targeted in health‐care systems in many western countries as a high‐risk group. However, we have limited knowledge of the long‐term significance of this prenatal care policy.

Objective

To investigate accounts women give of their experiences of being targeted as severely overweight during pregnancy when they look back at the intervention 4‐5 years later.

Design

Interpretive analysis based on 21 semi‐structured interviews conducted 4‐5 years after the pregnancy with Danish mothers categorized as having a pre‐pregnancy BMI ≥ 30.

Findings

In the women's retrospective accounts three phases were identified and separated: (i) Being identified as a “severely overweight pregnant woman.” The women differed over whether they accepted this categorization, but all believed that an approach based on weight was acceptable. (ii) Encounters with health‐care professionals. The women differed here: some reported no negative experiences; others reported experiences of prejudice and silence. (iii) Reflections on long‐term outcomes. Most women reported that the interventions during their pregnancies did not lead to any lasting lifestyle change. The women disagreed over whether, in principle, pregnancy was a suitable time to be targeted.

Discussion and conclusion

Our study illustrates the importance of critically considering whether pregnancy is a suitable window of opportunity for obesity prevention, and shows that women's experiences should be examined in relation to each phase of intervention. More interdisciplinary studies are needed to map potential benefits and other consequences over the short‐ and long‐term.

Women with a BMI ≥ 30kg/m² and their experience of maternity care: A meta ethnographic synthesis

OBJECTIVE

this paper is a report of a systematic review and meta-ethnography of the experiences of women with body mass index (BMI) ≥ 30kg/m² and their experience of maternity care.

METHOD

systematic review methods identified 12 qualitative studies about women's experiences of maternity care when their BMI ≥ 30kg/m². Findings from the identified studies were synthesised into themes, using metaethnography. SYNTHESIS AND FINDINGS: the meta-ethnography produced four key concepts; Initial encounters, Negotiating risk, Missing out and The positive intervention, which represent the experiences of maternity care for women with BMI ≥ 30kg/m² KEY CONCLUSION: many women with BMI ≥ 30kg/m² appear to be dissatisfied with the approaches taken to discuss weight status during maternity encounters. When weight is not addressed during these encounters women appear to be equally dissatisfied. The absence of open and honest discussions about weight, the feeling of being denied of a normal experience, and an over emphasis on the risks imposed upon pregnancy and childbirth by obesity, leave women feeling dissatisfied and disenfranchised. Sensitive care and practical advice about diet and exercise can help women move towards feeling more in control of their weight management.

"As soon as you've had the baby that's it…" a qualitative study of 24 postnatal women on their experience of maternal obesity care pathways

Background

Maternal obesity is associated with risks to mother and infant, and has implications for healthcare costs. United Kingdom (UK) levels of maternal obesity are rising, with higher prevalence in North East (NE) England, where this study was set. Pregnancy is often seen as an opportune time for intervention – a ‘teachable moment’ - which is ripe for promoting behaviour change. In response to rising obesity levels, a National Health Service (NHS) Foundation Trust in NE England implemented three maternal obesity care pathways contingent on Body Mass Index (BMI) at time of booking: pathway 1 for those with BMI ≥30 kg/m²; pathway 2 for BMI ≥35 kg/m²; and pathway 3 for BMI ≥40 kg/m². These incorporated relevant antenatal, intrapartum and postnatal clinical requirements, and included a focus on weight management intervention. This evaluation explored the accounts of postnatal women who had been through one of these pathways in pregnancy.

Methods

The study used a generic qualitative approach. Semi-structured interviews were carried out to explore the views and experiences of 24 recent mothers (aged 20–42), living in NE England, who had commenced on one of the pathways during pregnancy. Interviews explored experiences of weight management support during and after pregnancy, and perceived gaps in this support. Data were analysed using thematic content analysis.

Results

Three main themes emerged reflecting women’s views and experiences of the pathways: communication about the pathways; treating obese pregnant women with sensitivity and respect; and appropriate and accessible lifestyle services and information for women during and after pregnancy. An overarching theme: differences in care, support and advice, was evident when comparing the experiences of women on pathways 1 or 2 with those on pathway 3.

Conclusions

This study indicated that women were not averse to risk management and weight management intervention during and after pregnancy. However, in order to improve reach and effectiveness, such interventions need to be well communicated and offer constructive, individualised advice and support. The postnatal phase may also offer an opportune moment for intervention, suggesting that the simple notion of seeing pregnancy alone as a window of opportunity or a ‘teachable moment’ should be reconsidered.

Electronic supplementary material

The online version of this article (doi:10.1186/s12889-016-3289-1) contains supplementary material, which is available to authorized users.