Does preconception care work?

Knowledge on gestational diabetes mellitus and associated factors among pregnant women attending antenatal care clinics of North Shewa zone public hospitals, Oromia region, Central Ethiopia: a cross-sectional study

BACKGROUND

Globally, the prevalence of gestational diabetes mellitus (GDM) is currently rising. Assessing GDM knowledge and taking various public health actions will help pregnant women know more about the condition, resulting in its prevention.

OBJECTIVE

To assess pregnant women's knowledge of GDM and associated factors at antenatal care clinics of public hospitals in the North Shewa zone, Oromia region, Central Ethiopia.

DESIGN

Cross-sectional study.

SETTING

Five public hospitals of North Shewa zone, Oromia regional state, Central Ethiopia.

PARTICIPANTS

A total of 417 pregnant women.

METHODS

A face-to-face interview was conducted. A 13-items tool was used to measure GDM knowledge. Multivariable binary logistic regression was fitted to identify factors associated with the knowledge of GDM. The adjusted OR (AOR) with 95% CI and a p<0.05 was used to determine statistical significance.

RESULTS

Overall, 48% (95% CI 43.4% to 52.8%) of pregnant women had sufficient knowledge about GDM. The level of sufficient knowledge for GDM risk factors, screening/treatment and its consequences were 48%, 54.4% and 99%, respectively. Age group 15-24 years (AOR 3.49, 95% CI 1.05 to 11.59), attending secondary and above education (AOR 4.27, 95% CI 1.29 to 14.070, women whose partners attended primary school (AOR 3.83, 95% CI 1.36 to 10.78), history of GDM (AOR 3.36, 95% CI 1.68 to 6.71), history of hypertension (AOR 2.42, 95% CI 1.21 to 4.84), receiving preconception care (AOR 3.02, 95% CI 1.74 to 5.22) and being multigravida (AOR 3.19, 95% CI 1.52 to 6.67) were factors significantly associated with sufficient knowledge about GDM.

CONCLUSION

Overall, more than half of pregnant women have insufficient knowledge about GDM. Significant association between GDM knowledge and women's age, women's and partners' educational status, preconception care, history of GDM and hypertension, and the number of pregnancies were detected. Therefore, to increase pregnant women's GDM knowledge, health education programmes in the community and healthcare facilities should target the identified factors.

Attendance at pre-pregnancy care clinics for women with type 1 diabetes: A scoping review

INTRODUCTION

Type 1 diabetes mellitus occurs in one in every 275 pregnancies and can result in increased morbidity and mortality for both mother and baby. Several pregnancy complications can be reduced or prevented by attendance at pre-pregnancy care (PPC). Despite this, less than 40% of pregnant women with pre-gestational diabetes receive formal PPC. The aim of this scoping review is to identify the barriers to PPC attendance among women with type 1 diabetes.

METHODS

We conducted a scoping review by searching five databases (Ebsco, Embase, Ovid and PubMed for literature and the ProQuest for any grey/unpublished literature) for studies in English between 2000 and 2022. Studies that evaluated attendance at PPC for women with type 1 diabetes were included.

RESULTS

There are multiple barriers to PPC attendance, and many of these barriers have been unchanged since the 1990s. Identified barriers can be grouped under patient-centered and clinician-centered headings. Patient factors include knowledge and awareness, unplanned pregnancies, negative perceptions of healthcare and communication issues, unclear attendance pathways and logistical issues including time off work and childcare. Clinician factors include physician knowledge, time constraints and lack of comfort discussing pregnancy/contraception.

CONCLUSION

This review highlights the ongoing problem of poor attendance at PPC and identifies key barriers to be addressed when developing and implementing PPC programs for women with type 1 diabetes.

Acceptability and feasibility of a planned preconception weight loss intervention in women with long-acting reversible contraception: the Plan-it mixed-methods study

BACKGROUND

Women with overweight (a body mass index of ≥ 25 kg/m2) or obesity (a body mass index of ≥ 30 kg/m2) are at greater risk of experiencing complications during pregnancy and labour than women with a healthy weight. Women who remove their long-acting reversible contraception (i.e. coils or implants) are one of the few groups of people who contact services as part of their preparation for conception, creating an opportunity to offer a weight loss intervention.

OBJECTIVES

The objectives were to understand if routine NHS data captured the pathway from long-acting reversible contraception removal to pregnancy and included body mass index; to identify the suitable components of a preconception weight loss intervention; and to engage with key stakeholders to determine the acceptability and feasibility of asking women with overweight/obesity to delay the removal of their long-acting reversible contraception in order to take part in a preconception weight loss intervention.

DESIGN

This was a preparatory mixed-methods study, assessing the acceptability and feasibility of a potential intervention, using routine NHS data and purposefully collected qualitative data.

PARTICIPANTS

The NHS routine data included all women with a long-acting reversible contraception code. There were three groups of participants in the surveys and interviews: health-care practitioners who remove long-acting reversible contraception; weight management consultants; and women of reproductive age with experience of overweight/obesity and of using long-acting reversible contraception.

SETTING

UK-based health-care practitioners recruited at professional meetings; and weight management consultants and contraceptive users recruited via social media.

DATA SOURCES

Anonymised routine data from UK sexual health clinics and the Clinical Practice Research Datalink, including the Pregnancy Register; and online surveys and qualitative interviews with stakeholders.

RESULTS

The records of 2,632,871 women aged 16-48 years showed that 318,040 had at least one long-acting reversible contraception event, with 62% of records including a body mass index. Given the identified limitations of the routine NHS data sets, it would not be feasible to reliably identify women with overweight/obesity who request a long-acting reversible contraception removal with an intention to become pregnant. Online surveys were completed by 100 health-care practitioners, four weight management consultants and 243 contraceptive users. Ten health-care practitioners and 20 long-acting reversible contraception users completed qualitative interviews. A realist-informed approach generated a hypothesised programme theory. The combination of weight discussions and the delay of long-acting reversible contraception removal was unacceptable as an intervention to contraceptive users for ethical and practical reasons. However, a preconception health intervention incorporating weight loss could be acceptable, and one potential programme is outlined.

LIMITATIONS

There was very limited engagement with weight management consultants, and the sample of participating stakeholders may not be representative.

CONCLUSIONS

An intervention that asks women to delay long-acting reversible contraception removal to participate in a preconception weight loss intervention would be neither feasible nor acceptable. A preconception health programme, including weight management, would be welcomed but requires risk communication training of health-care practitioners.

FUTURE WORK

Work to improve routine data sets, increase awareness of the importance of preconception health and overcome health-care practitioner barriers to discussing weight as part of preconception care is a priority.

TRIAL REGISTRATION

This trial is registered as ISRCTN14733020.

FUNDING

This project was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 27, No. 1.

Effects of trying to conceive using an every-other-day strategy versus fertile window monitoring on stress: a 12-month randomized controlled trial

STUDY QUESTION

Can animation videos on how to optimize the chances of pregnancy influence stress, anxiety, depression and sexual functioning of individuals trying to conceive (TTC)?

SUMMARY ANSWER

There were no differences between those educated to have intercourse every other day, on the fertile window and a control group (CG), and depression and sexual dysfunction significantly increased over time for all arms.

WHAT IS KNOWN ALREADY

Recent findings indicate that time to pregnancy can be significantly shortened by targeting the fertile period, but some reproductive care guidelines recommend instead the practice of intercourse every other day on the basis that it is less stressful to the couple. Evidence to support guidelines on how to preserve well-being and psychosocial adjustment and optimize pregnancy chances is lacking.

STUDY DESIGN, SIZE, DURATION

We conducted a prospective, double-blinded, three-arm randomized controlled trial between July 2016 and November 2019. Participants were randomized to either not having any stimulus (CG) or visualizing a short animated video explaining how to improve chances of pregnancy by having intercourse every other day (EOD group), or by monitoring the fertile window (FWM group). Assessments were made before the intervention (T0), and 6 weeks (T1), 6 months (T2) and 12 months after (T3), with follow-ups censored in case of pregnancy.

PARTICIPANTS/MATERIALS, SETTING, METHODS

Participants were childless individuals of reproductive age actively TTC and not diagnosed or unaware of a condition that could prevent spontaneous pregnancy. Individuals were excluded from recruitment if they had previous children or had a condition preventing spontaneous pregnancy. Our primary outcome was stress and secondary outcomes included anxiety, depression, sexual functioning and pregnancy. Primary analyses were performed according to intention-to-treat principle.

MAIN RESULTS AND THE ROLE OF CHANCE

Of the 450 randomized participants 127 were educated to use an every-other-day strategy, 135 to monitor the fertile window, and 134 received no intervention. Groups were similar regarding demographics and months TTC. Repeated measures analysis revealed that there were no significant interaction effects of psychological and sexual well-being between groups over time (P > 0.05). Significant time effects were revealed for stress (F(3,855) = 4.94, P < 0.01), depression (F(3,855) = 14.22, P < 0.01) and sexual functioning (time effects P values <0.001 for female sexual functioning dimensions and <0.002 for male dimensions), but not for anxiety (F(2,299) = 0.51, P > 0.05). Stress levels lowered after 6 months (P < 0.001) and returned to baseline levels at the 1-year follow-up. Depressive symptomatology significantly increased at 6 weeks (P = 0.023), and again 1 year after (P = 0.001). There were also significant decreases in all female sexual functioning dimensions (desire, satisfaction, arousal, pain, orgasm and lubrication). In men, there were significant variations in orgasm, intercourse satisfaction and erectile function, but not desire and sexual satisfaction. Revealed pregnancy rates were 16% for participants in the EOD group, 30% for the FWM group and 20% for the CG. Pregnancies were not significantly different between arms: EOD vs FWM (odds ratio (OR) 2.32; 95% CI 0.92-5.83); EOD vs CG (OR 0.74; 95% CI 0.30-1.87); and FWM vs CG (OR 1.71; 95% CI 0.70-4.18).

LIMITATIONS, REASONS FOR CAUTION

Participants were recruited after transitioning to procreative sex. The study might be prone to bias as almost 30% of our sample fulfilled the chronological criterion for infertility, and other reproductive strategies could have been tried over time before recruitment.

WIDER IMPLICATIONS OF THE FINDINGS

Our data suggest that stress does not arise from feeling pressured on the fertile period and that advice on timing of intercourse might have to be personalized. The increasing levels of depression and sexual dysfunction over a year emphasize the crucial role of preconception care and fertility counseling in promoting psychological and sexual well-being.

STUDY FUNDING/COMPETING INTEREST(S)

This work was supported by European Union Funds (FEDER/COMPETE-Operational Competitiveness Programme) and by national funds (FCT-Portuguese Foundation for Science and Technology) under the projects PTDC/MHC-PSC/4195/2012 and SFRH/BPD/85789/2012.

TRIAL REGISTRATION NUMBER

NCT02814006.

TRIAL REGISTRATION DATE

27 June 2016.

DATE OF FIRST PATIENT’S ENROLLMENT

19 July 2016.

Patient and provider perspectives on preterm birth risk assessment and communication

OBJECTIVE

To describe and compare how obstetric patients and care providers view preterm birth risk assessment and communication.

METHODS

We conducted eight focus groups with obstetric patients (n = 35) and 16 qualitative interviews with obstetric providers. Grounded theory was used to identify and analyze themes.

RESULTS

Patients' knowledge about preterm birth varied greatly. Similar benefits and risks of preterm birth risk counseling were discussed by patients and providers with notable exceptions: patients cited preparedness as a benefit and providers cited maternal blame, patient alienation, and estimate uncertainty as potential risks. Most patients expressed a desire to know their personalized preterm birth risk during pregnancy. Providers differed in whether they offer universal versus selective, and quantitative versus qualitative, preterm birth risk counseling. Many providers expressed concern about discussing social and structural risk factors for preterm birth.

CONCLUSION

While many patients desired knowing their personalized preterm birth risk, prenatal care providers' disclosure practices vary because of uncertainty of estimates, concerns about negative consequences and challenges of addressing systemic inequities and social determinants of health.

PRACTICE IMPLICATIONS

Given the existing asymmetry of information about preterm birth risk, providers should consider patient preferences regarding and potential benefits and risks of such disclosure in their practice.

Preconception Care to Reduce the Risks of Overweight and Obesity in Women of Reproductive Age: An Integrative Review

Despite adverse pregnancy outcomes for women with overweight or obesity, preconception guidelines for achieving optimal wellness for women contemplating pregnancy regarding the risks of overweight or obesity are varied based upon national affiliation. The aim of this study was to synthesize the best evidence related to preconception counseling and care focused on overweight or obesity provided to women of reproductive age. An integrative review of original studies was conducted. PubMed, Cumulative Index in Nursing and Allied Health Literature, Ovid, Scopus, Web of Science, and Embase were included. Full-text, data-based articles were searched from 2009 to 2018, with reviews and synthesis completed in 2019 and 2020. Of 8703 initial articles, 31 articles remained in the review. Quality assessment and level of evidence were evaluated based upon criteria from the Joanna Briggs Institute and the Johns Hopkins Nursing Evidence-Based Practice Quality Guide. The level of evidence for the majority of studies was non-experimental but they were of good quality with appropriate methods, samples and relevant results. Limited attention and interest in preconception counseling regarding risks of overweight or obesity by health care professionals were noted, which may contribute to women’s unawareness of these risks on preconception health.

Hypertension Canada's 2020 Comprehensive Guidelines for the Prevention, Diagnosis, Risk Assessment, and Treatment of Hypertension in Adults and Children

Hypertension Canada's 2020 guidelines for the prevention, diagnosis, risk assessment, and treatment of hypertension in adults and children provide comprehensive, evidence-based guidance for health care professionals and patients. Hypertension Canada develops the guidelines using rigourous methodology, carefully mitigating the risk of bias in our process. All draft recommendations undergo critical review by expert methodologists without conflict to ensure quality. Our guideline panel is diverse, including multiple health professional groups (nurses, pharmacy, academics, and physicians), and worked in concert with experts in primary care and implementation to ensure optimal usability. The 2020 guidelines include new guidance on the management of resistant hypertension and the management of hypertension in women planning pregnancy.

Change in Lifestyle Behaviors After Preconception Care: A Prospective Cohort Study

Purpose:

To evaluate the effects of preconception care (PCC) consultations by change in lifestyle behaviors.

Setting and Intervention:

Women in deprived neighborhoods of 14 Dutch municipalities were encouraged to visit a general practitioner or midwife for PCC.

Sample:

The study included women aged 18 to 41 years who had a PCC consultation.

Design:

In this community-based prospective cohort study, we assessed initiation of folic acid supplementation, cessation of smoking, alcohol consumption, and illicit drug use.

Measures:

Self-reported and biomarker data on behavioral changes were obtained at baseline and 3 months later.

Analysis:

The changes in prevalence were assessed with the McNemar test.

Results:

Of the 259 included participants, paired analyses were available in 177 participants for self-reported outcomes and in 82 for biomarker outcomes. Baseline self-reported prevalence of no folic acid use was 36%, smoking 12%, weekly alcohol use 22%, and binge drinking 17%. Significant changes in prevalence toward better lifestyle during follow-up were seen for folic acid use (both self-reported, P < .001; and biomarker-confirmed, P = .008) and for self-reported binge drinking (P = .007).

Conclusion:

Our study suggests that PCC contributes to initiation of folic acid supplementation and cessation of binge drinking in women who intend to become pregnant. Although based on a small sample, the study adds to the limited body of evidence regarding the benefits of PCC in improving periconception health.

Preconception Lifestyle and Weight-Related Behaviors by Maternal Body Mass Index: A Cross-Sectional Study of Pregnant Women

Obesity is a rising global health challenge, particularly for reproductive-aged women. Our cross-sectional study of pregnant women (n = 223) examined associations between preconception body mass index (BMI) and socio-demographics, weight perceptions and lifestyle behaviors. Over half of women were overweight (33.2%) or obese (22.0%), 49.6% of which perceived their weight as normal. High proportions of women reported planning their pregnancies (70.0%) and were actively trying to lose or maintain their weight preconception (72.7%). Weight management approaches varied from reducing discretionary foods (63.7%) to professional support (8.1%). Obese women had significantly greater odds of reducing discretionary foods (odds ratio (OR) = 6.69 95% confidence interval (CI) 2.13–21.00, p = 0.001) and using structured diets (adjusted odds ratio (AOR) = 9.13 95% CI 2.90–28.81, p < 0.001) compared to normal-weight women. After adjusting for socio-demographics, compared to normal-weight women, overweight (AOR = 5.24 95% CI 2.19–12.56, p < 0.001) and obese (AOR = 2.85 95% CI 1.06–7.67, p = 0.04) women had significantly increased odds of exercising for weight management and significantly lower odds of taking folic-acid preconception (overweight: AOR = 0.40 95% CI 0.18–0.90, p = 0.01, obese: AOR = 0.38 95% CI 0.16–0.91, p = 0.03). Large proportions of women planning a pregnancy have an overweight/obese BMI, with associated suboptimal health behaviors and reduced health professional engagement preconception. Further research exploring women’s perspectives regarding preconception lifestyles is needed to inform effective preconception health promotion strategies.

Neighbourhood assets and early pregnancy cardiometabolic risk factors

BACKGROUND

Prepregnancy cardiometabolic risk factors are associated with increased risks of adverse pregnancy outcomes. Neighbourhood features may reflect prepregnancy exposures that contribute to poor cardiometabolic health before pregnancy and may contribute to racial disparities in pregnancy outcomes.

METHODS

Early pregnancy measurements from 1504 women enrolled in the Prenatal Exposures and Preeclampsia Prevention study were linked to a 2000 Census-based measure of neighbourhood socio-economic status and commercial data (food, alcohol, and retail density) during 1997-2001. Multilevel random-intercept linear regression was used to separately estimate the association between levels of neighbourhood assets (low, mid-low, mid-high, high) and C-reactive protein (CRP), systolic blood pressure (SBP), and body mass index (BMI) in cross-sectional analyses. Low neighbourhood assets have high-poverty/low-retail, whereas high neighbourhood assets have low-poverty/high-retail. Models were adjusted for individual-level factors (age and race), and we assessed effect modification by race.

RESULTS

Low compared with high neighbourhood assets were associated with higher BMI (β 1.95 kg/m2 , 95% CI 0.89, 3.00), after adjusting for individual-level covariates. After adjusting for BMI and other covariates, low compared with high assets were associated with higher CRP concentrations (β 0.20 ng/mL, 95% CI 0.01, 0.39). Neighbourhood assets were not associated with SBP. Race did not modify the association between neighbourhood assets and cardiometabolic risk factors.

CONCLUSIONS

Early pregnancy adiposity is related to neighbourhood features independent of individual factors. Further, inflammation beyond accounting for adiposity is related to neighbourhood features. Strategies that address neighbourhood assets during preconception and interconception may be promising approaches to improve prepregnancy health.

Student midwives' intention to deliver weight management interventions: A theory of planned behaviour & self-determination theory approach

OBJECTIVES

Overweight and obesity during pregnancy is a risk to the health of mother and child. Midwives can modify this key risk factor by providing weight management interventions to women before and during pregnancy. This study investigated social cognitive determinants of pre-clinical student midwives' intention to provide weight management intervention in preconception and antenatal clinical contexts. Social cognitive determinants from the theory of planned behaviour (attitudes, subjective norms, perceived behavioural control) and self-determination theory (autonomous motivation) were used to predict pre-clinical students' intentions once they enter practice.

METHOD

The sample was 183 female pre-clinical student midwives from 17 Australian universities (age range = 18-54 years). Participants received a cross-sectional questionnaire that measured demographic items, attitudes, subjective norms, perceived behavioural control and autonomous motivation towards providing weight management intervention at two different stages of pregnancy - preconception and antenatal.

RESULTS

Attitudes, subjective norms, and perceived behavioural control accounted for 56% of intention to provide weight management interventions to women planning pregnancy; however, the addition of autonomous motivation was non-significant. In contrast, attitudes and subjective norms (but not perceived behavioural control) accounted for 39% of intention to provide weight management interventions to women during pregnancy. Furthermore, the addition of autonomous motivation to the model was significant and accounted for an additional 3.1% of variance being explained.

IMPLICATIONS AND CONCLUSIONS

Curriculum changes that support and increase pre-clinical student midwives' intention should focus on these specific correlates of intention in order to foster long term changes in clinical practice. Changes to the education and training of midwives should be carefully considered to understand their impact on these important determinants of intention to engage in this critical clinical skill.

Prevalence and predictors of early gestational weight gain associated with obesity risk in a diverse Australian antenatal population: a cross-sectional study

Background

Excess gestational weight gain (GWG) leads to adverse short- and long-term consequences for women and their offspring. Evidence suggests that excess GWG in early pregnancy may be particularly detrimental, contributing to the intergenerational cycle of obesity. The primary outcome was to investigate the prevalence and predictors of excess GWG in early pregnancy, and if women understand the risks to themselves and their offspring stratified by maternal body mass index (BMI).

Methods

This was a secondary analysis (n = 2131) of a cross-sectional study (n = 2338) conducted over 6 months in 2015 of pregnant women attending antenatal clinics at four maternity hospitals across Sydney, Australia before 22 completed weeks gestation An self-completed questionnaire was used to investigate knowledge of expected weight gain in pregnancy, understanding of risks associated with excess GWG, self-reported anthropometric measures and socio-demographic data.

Results

One third (34.2%) of women gained weight in excess of the recommendations by 22 completed weeks gestation. Women who were overweight (OR: 1.69, 95% CI: 1.33–2.14) or obese (OR: 1.64, 95% CI: 1.20–2.24) pre-pregnancy were more likely to gain excess weight in early pregnancy compared to normal weight women; as were women from lower socio-economic areas (OR: 1.89, 95% CI: 1.49–2.41). Half (51%) the women were unsure about the effect of excess GWG on their baby; 11% did not believe that excess GWG would affect the weight of the baby and 14% did not believe that excess GWG would affect longer term outcomes for their baby. Women who gained weight above the recommendations were significantly more likely to believe that excessive GWG in pregnancy would not have any adverse future effect on health outcomes or weight of their baby.

Conclusions

The women at particular risk of excess early GWG are those who are overweight and obese and/or residing in lower socio-economic areas. These women need to be targeted for appropriate counselling preconception or in early pregnancy. Given the significant adverse outcomes associated with excess GWG in early pregnancy, preconception or early pregnancy counselling with respect to GWG and intervention research regarding best approach remains a public health priority.

Electronic supplementary material

The online version of this article (10.1186/s12884-017-1482-6) contains supplementary material, which is available to authorized users.

Preconception health care interventions: A scoping review

Pregnancy is often framed as a "window of opportunity" for intervening on a variety of health practices such as alcohol and tobacco use. However, there is evidence that interventions focusing solely on the time of pregnancy can be too narrow and potentially stigmatizing. Indeed, health risks observed in the preconception period often continue during pregnancy. Using a scoping review methodology, this study consolidates knowledge and information related to current preconception and interconception health care interventions published in the academic literature. We identified a total of 29 intervention evaluations, and summarized these narratively. Findings suggest that there has been some progress in intervening on preconception health, with the majority of interventions offering assessment or screening followed by brief intervention or counselling. Overall, these interventions demonstrated improvements in at least some of the outcomes measured. However, further preconception care research and intervention design is needed. In particular, the integration of gender transformative principles into preconception care is needed, along with further intervention design for partners/ men, and more investigation on how best to deliver preconception care.

Informing the development and uptake of a weight management intervention for preconception: a mixed-methods investigation of patient and provider perceptions

Background

It is recommended for women to have a healthy body mass index before conception. However, there is limited research on appropriate preconception interventions for weight loss. Furthermore, there is a lack of knowledge on providers’ willingness to refer to particular behavioral interventions and the degree to which patients would attend those interventions.

Methods

A cross-section of 67 patients and 21 providers completed surveys related to their demographics and willingness to refer/attend a number of interventions for weight loss. A case study of three patients from the target audience was used to elicit detailed feedback on preconception weight status and weight loss intervention.

Results

Overall, patients were willing to attend a variety of interventions, regardless of BMI category. Focus group participants shared that weight loss prior to conception would be beneficial for them and their child, but cited barriers such as time, location, and the way providers encourage weight loss. Providers were willing to refer to a number of behavioral interventions, and were less willing to prescribe weight loss medications than other intervention options.

Conclusions

A number of intervention strategies may be well received by both patients and providers in preconception care to assist with weight loss prior to conception. Future research is needed on intervention effects and sustainability.

Electronic supplementary material

The online version of this article (doi:10.1186/s40608-017-0144-6) contains supplementary material, which is available to authorized users.

China's community-based strategy of universal preconception care in rural areas at a population level using a novel risk classification system for stratifying couples´ preconception health status

BACKGROUND

Preconception care (PCC) is recommended for optimizing a woman's health prior to pregnancy to minimize the risk of adverse pregnancy and birth outcomes. We aimed to evaluate the impact of strategy and a novel risk classification model of China´s "National Preconception Health Care Project" (NPHCP) in identifying risk factors and stratifying couples' preconception health status.

METHODS

We performed a secondary analysis of data collected by NPHCP during April 2010 to December 2012 in 220 selected counties in China. All couples enrolled in the project accepted free preconception health examination, risk evaluation, health education and medical advice. Risk factors were categorized into five preconception risk classes based on their amenability to prevention and treatment: A-avoidable risk factors, B- benefiting from targeted medical intervention, C-controllable but requiring close monitoring and treatment during pregnancy, D-diagnosable prenatally but not modifiable preconceptionally, X-pregnancy not advisable. Information on each couple´s socio-demographic and health status was recorded and further analyzed.

RESULTS

Among the 2,142,849 couples who were enrolled to this study, the majority (92.36%) were from rural areas with low education levels (89.2% women and 88.3% men had education below university level). A total of 1463266 (68.29%) couples had one or more preconception risk factors mainly of category A, B and C, among which 46.25% were women and 51.92% were men. Category A risk factors were more common among men compared with women (38.13% versus 11.24%; P = 0.000).

CONCLUSIONS

This project provided new insights into preconception health of Chinese couples of reproductive age. More than half of the male partners planning to father a child, were exposed to risk factors during the preconception period, suggesting that an integrated approach to PCC including both women and men is justified. Stratification based on the new risk classification model demonstrated that a majority of the risk factors are avoidable, or preventable by medical intervention. Therefore, universal free PCC can be expected to improve pregnancy outcomes in rural China.

A Summary of Pathways or Mechanisms Linking Preconception Maternal Nutrition with Birth Outcomes

Population, human, animal, tissue, and molecular studies show collectively and consistently that maternal nutrition in the pre- or periconception period influences fetal growth and development, which subsequently affects the individual's long-term health. It is known that nutrition during pregnancy is an important determinant of the offspring's growth and health. However, now there is evidence that the mother's nutritional status at conception also influences pregnancy outcome and long-term health. For example, the mother's nutritional status at conception influences the way energy is partitioned between maternal and fetal needs. Furthermore, placental development during the first weeks of gestation reflects maternal nutrition and establishes mechanisms for balancing maternal and fetal nutritional needs. Also, maternal nutritional signals at fertilization influence epigenetic remodeling of fetal genes. These findings all indicate that maternal parenting begins before conception. The following papers from a symposium on preconception nutrition presented at the 2015 Scientific Sessions and Annual Meeting of the ASN emphasize the importance of maternal nutrition at conception on the growth and long-term health of the child.

[Hypertension and pregnancy: Post-partum period]

Post-partum period is associated with specific characteristics in women with gestational disorders or preeclampsia. For breastfeeding women, the choice of antihypertensive treatment should take into account the impact on child health. The impact of breastfeeding on health mother must be also discussed. Moreover, for lactation inhibition, bromocriptine should not be used, especially in the context of gestational disorders. In post-partum period, the best contraceptive strategy is only-progestin contraception or non-hormonal contraceptives use. However, this choice will depend on the stabilization or normalization of blood pressure in early post-partum period. Finally, several consultations should be suggested: an information and announcement to explain the consequences of these gestational disorders and organize their multidisciplinary management and follow-up. A preconceptional consultation takes its place to anticipate potential recurrent preeclampsia or gestational hypertension and to schedule a future pregnancy in optimal conditions.