The British Columbia Healthy Connections Project: findings on socioeconomic disadvantage in early pregnancy

Effectiveness of nurse-home visiting in improving child and maternal outcomes prenatally to age two years: a randomised controlled trial (British Columbia Healthy Connections Project)

BACKGROUND

We investigated the effectiveness of Nurse-Family Partnership (NFP), a prenatal-to-age-two-years home-visiting programme, in British Columbia (BC), Canada.

METHODS

For this randomised controlled trial, we recruited participants from 26 public health settings who were: <25 years, nulliparous, <28 weeks gestation and experiencing socioeconomic disadvantage. We randomly allocated participants (one-to-one; computer-generated) to intervention (NFP plus existing services) or comparison (existing services) groups. Prespecified outcomes were prenatal substance exposure (reported previously); child injuries (primary), language, cognition and mental health (problem behaviour) by age two years; and subsequent pregnancies by 24 months postpartum. Research interviewers were masked. We used intention-to-treat analyses. (ClinicalTrials.gov, NCT01672060.) RESULTS: From 2013 to 2016 we enrolled 739 participants (368 NFP, 371 comparison) who had 737 children. Counts for child injury healthcare encounters [rate per 1,000 person-years or RPY] were similar for NFP (223 [RPY 316.17]) and comparison (223 [RPY 305.43]; rate difference 10.74, 95% CI -46.96, 68.44; rate ratio 1.03, 95% CI 0.78, 1.38). Maternal-reported language scores (mean, M [SD]) were statistically significantly higher for NFP (313.46 [195.96]) than comparison (282.77 [188.15]; mean difference [MD] 31.33, 95% CI 0.96, 61.71). Maternal-reported problem-behaviour scores (M [SD]) were statistically significantly lower for NFP (52.18 [9.19]) than comparison (54.42 [9.02]; MD -2.19, 95% CI -3.62, -0.75). Subsequent pregnancy counts were similar (NFP 115 [RPY 230.69] and comparison 117 [RPY 227.29]; rate difference 3.40, 95% CI -55.54, 62.34; hazard ratio 1.01, 95% CI 0.79, 1.29). We observed no unanticipated adverse events.

CONCLUSIONS

NFP did not reduce child injuries or subsequent maternal pregnancies but did improve maternal-reported child language and mental health (problem behaviour) at age two years. Follow-up of long-term outcomes is warranted given that further benefits may emerge across childhood and adolescence.

Staying Together No Matter What: Becoming Young Parents on the Streets of Vancouver

Among young people who use drugs in the context of entrenched poverty and homelessness, pregnancy is often viewed as an event that can meaningfully change the trajectory of their lives. However, youth's desires and decision-making do not always align with the perspectives of various professionals and systems regarding how best to intervene during pregnancies and early parenting. Drawing on longitudinal interviews and fieldwork with young people in Vancouver, Canada, we explore how their romantic relationships powerfully shaped understandings of what was right and wrong and which actions to take during pregnancy and early parenting, and how these moral worlds frequently clashed with the imperatives of healthcare, criminal justice, and child protection systems. We demonstrate how a disjuncture between youth's desires, decision-making and moralities, and the systems that are intended to help them, can further entrench young people in cycles of loss, defeat, and harm. These cycles are powerfully racialized for young Indigenous people in our context.

Effect of early childhood development interventions delivered by healthcare providers to improve cognitive outcomes in children at 0-36 months: a systematic review and meta-analysis

OBJECTIVE

To determine the effect of early childhood development interventions delivered by healthcare providers (HCP-ECD) on child cognition and maternal mental health.

DESIGN

Systematic review, meta-analysis.

SETTING

Healthcare setting or home.

PARTICIPANTS

Infants under 1 month of age.

INTERVENTIONS

HCP-ECD interventions that supported responsive caregiving, early learning and motor stimulation. MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Health Technology Assessment Database, Database of Abstracts of Reviews of Effects and Cochrane Database of Systematic Reviews were searched until 15 November 2021. Studies reporting prespecified outcomes were pooled using standard meta-analytical methods.

MAIN OUTCOME MEASURES

Cognitive development in children at 0-36 months.

RESULTS

Forty-two randomised controlled trials with 15 557 infants were included in the narrative synthesis. Twenty-seven trials were included in the meta-analyses. Pooled data from 13 trials suggest that HCP-ECD interventions may improve cognitive outcomes in children between 0 and 36 months (Bayley Scales of Infant Development version IIII (BSID-III) mean difference (MD) 2.65; 95% CI 0.61 to 4.70; 2482 participants; low certainty of evidence). Pooled data from nine trials suggest improvements in motor development (BSID-III MD 4.01; 95% CI 1.54 to 6.48; 1437 participants; low certainty of evidence). There was no evidence of improvement in maternal mental health (standardised MD -0.13; 95% CI -0.28 to 0.03; 2806 participants; 11 trials; low certainty of evidence).

CONCLUSIONS

We report promising evidence, particularly for cognitive and motor outcomes, of the effect of HCP-ECD interventions. However, effect sizes were small, and the certainty of evidence ranged from very low to moderate. Additional high-quality research is required.

PROSPERO REGISTRATION NUMBER

CRD42019122021.

A Comprehensive Review on Social Inequalities and Pregnancy Outcome-Identification of Relevant Pathways and Mechanisms

Scientific literature tends to support the idea that the pregnancy and health status of fetuses and newborns can be affected by maternal, parental, and contextual characteristics. In addition, a growing body of evidence reports that social determinants, measured at individual and/or aggregated level(s), play a crucial role in fetal and newborn health. Numerous studies have found social factors (including maternal age and education, marital status, pregnancy intention, and socioeconomic status) to be linked to poor birth outcomes. Several have also suggested that beyond individual and contextual social characteristics, living environment and conditions (or "neighborhood") emerge as important determinants in health inequalities, particularly for pregnant women. Using a comprehensive review, we present a conceptual framework based on the work of both the Commission on Social Determinants of Health and the World Health Organization (WHO), aimed at describing the various pathways through which social characteristics can affect both pregnancy and fetal health, with a focus on the structural social determinants (such as socioeconomic and political context) that influence social position, as well as on intermediary determinants. We also suggest that social position may influence more specific intermediary health determinants; individuals may, on the basis of their social position, experience differences in environmental exposure and vulnerability to health-compromising living conditions. Our model highlights the fact that adverse birth outcomes, which inevitably lead to health inequity, may, in turn, affect the individual social position. In order to address both the inequalities that begin in utero and the disparities observed at birth, it is important for interventions to target various unhealthy behaviors and psychosocial conditions in early pregnancy. Health policy must, then, support: (i) midwifery availability and accessibility and (ii) enhanced multidisciplinary support for deprived pregnant women.

Infant Developmental Outcomes: Influence of Prenatal Maternal-Fetal Attachment, Adult Attachment, Maternal Well-Being, and Perinatal Loss

Identification of prenatal characteristics that predict later infant development may afford opportunities for early intervention, potentially optimizing childhood development outcomes. The aim of the present study was to examine the effects of selected prenatal factors (maternal–fetal attachment, maternal adult attachment, maternal well-being, and previous perinatal loss) on later infant development. Pregnant women were recruited from two antenatal clinics at one tertiary hospital and asked to complete self-report questionnaires. The Bayley’s Scales of Infant and Toddler Development were then completed one to two years after their baby’s birth. Independent samples t-tests, correlational analyses, and multivariate linear regression models were conducted. Results from 40 dyads revealed that more favorable maternal–fetal attachment, more secure/less anxious maternal attachment, and higher maternal well-being predicted maternal reports of infant adaptive behavior regardless of previous perinatal loss. Infants of women without perinatal loss scored higher in external observer-rated cognitive development compared to infants of women with previous perinatal loss. While further research is required, findings indicate that a mother’s well-being and her relationship with her baby during pregnancy contributes to positive perceptions of her infant’s daily living skills. Supporting the parenting of women with perinatal loss is required to, in turn, promote optimal cognitive development in infants.

Public health nurses' perceptions of their interactions with child protection services when supporting socioeconomically disadvantaged young mothers in British Columbia, Canada

BACKGROUND

Children of girls and young women experiencing socioeconomic disadvantage are at risk of maltreatment and associated health and developmental problems. Nurse-Family Partnership (NFP) is an early intervention program designed to improve child and maternal health outcomes. The effectiveness of NFP is being evaluated in British Columbia (BC) through a randomized controlled trial, augmented by a process evaluation to identify influences on how NFP was implemented.

OBJECTIVE

To describe how public health nurses providing NFP perceived their interactions with child protection professionals.

PARTICIPANTS AND SETTING

Forty-seven public health nurses across BC.

METHODS

The principles of interpretive description informed the qualitative component of the process evaluation. Data from interviews and focus groups were analyzed using the framework analysis approach. A thematic framework was generated through processes of coding, charting and mapping, with a focus on organizational and systems influences.

RESULTS

Nurses' practice in supporting families often involved engagement with child protection services. Four themes about the nature of this work were identified: 1) developing a deeper understanding of the disciplinary perspectives of child protection, 2) striving for strengthened collaboration, 3) navigating change and uncertainty, and 4) responding to family and community complexity.

CONCLUSIONS

Participants valued the contribution of child protection professionals and expressed willingness to collaborate to support families. However, collaboration was constrained by multiple structural barriers. Collaborative models offer possibilities for integrated practice, although can be difficult to implement within current health and child protection systems and child protection regulatory contexts.

Public Health Nurses' Professional Practices to Prevent, Recognize, and Respond to Suspected Child Maltreatment in Home Visiting: An Interpretive Descriptive Study

The purpose of this analysis was to understand public health nurses’ experiences in preventing and addressing suspected child maltreatment within the context of home visiting. The principles of interpretive description guided study decisions and data were generated from interviews with 47 public health nurses. Data were analyzed using reflexive thematic analysis. The findings highlighted that public health nurses have an important role in the primary prevention of child maltreatment. These nurses described a six-step process for managing their duty to report suspected child maltreatment within the context of nurse-client relationships. When indicators of suspected child maltreatment were present, examination of experiential practice revealed that nurses developed reporting processes that maximized child safety, highlighted maternal strengths, and created opportunities to maintain the nurse-client relationship. Even with child protection involvement, public health nurses have a central role in continuing to work with families to develop safe and competent parenting skills.

Nurse home visiting and prenatal substance use in a socioeconomically disadvantaged population in British Columbia: analysis of prenatal secondary outcomes in an ongoing randomized controlled trial

BACKGROUND

Nurse-Family Partnership (NFP) involves public health nurses providing frequent home visits from early pregnancy until children reach age 2 years, focusing on first-time parents experiencing socioeconomic disadvantage. Our aim was to evaluate NFP's effectiveness in improving child and maternal health.

METHODS

We conducted an analysis of prenatal secondary outcomes in an ongoing randomized controlled trial in British Columbia; the data used in this analysis were collected from January 2014 to May 2017. Participants were pregnant girls and women aged 14-24 years who were preparing to parent for the first time and experiencing socioeconomic disadvantage. They were randomly allocated 1:1 to the intervention (NFP plus existing services) or control group (existing services). Prespecified prenatal secondary outcome indicators were changes in use of nicotine cigarettes and alcohol use by 34-36-weeks' gestation. We also report on prespecified exploratory cannabis and street drug use measures. We used mixed-effect models for longitudinal and clustered data to estimate intervention effects. Analyses were by intention to treat.

RESULTS

The median gestational age at baseline for the 739 participants (368 participants in the intervention group, 371 in the comparison group) was 20 weeks, 6 days. By 34-36 weeks' gestation, NFP significantly reduced cigarette counts (over the past 2 d) (difference in changes [DIC] of count -1.6, 95% confidence interval [CI] -6.4 to -1.3) in those who smoked. NFP also significantly reduced rates of prenatal cannabis use (DIC -6.4, 95% CI -17.0 to -1.7), but not rates of street drug or "any" substance use. While we observed decreased rates of cigarette and alcohol use in both groups (DIC of proportions -2.8, 95% CI -15.3 to 0.6; DIC -0.5, 95% CI -8.7 to 1.8, respectively), these changes were not statistically significant.

INTERPRETATION

We found no evidence that NFP was effective in reducing rates of prenatal cigarette and alcohol use; however, it led to reduced prenatal cannabis use, and in smokers it led to modest reductions in cigarette use. NFP may therefore hold promise for reducing some types of prenatal substance use in disadvantaged populations. Trial registration: ClinicalTrials.gov, no. NCT01672060.

Retaining participants in community-based health research: a case example on standardized planning and reporting

Background

Effective strategies for participant retention are critical in health research to ensure validity, generalizability and efficient use of resources. Yet standardized guidelines for planning and reporting on retention efforts have been lacking. As with randomized controlled trial (RCT) and systematic review (SR) protocols, retention protocols are an opportunity to improve transparency and rigor. An RCT being conducted in British Columbia (BC), Canada provides a case example for developing a priori retention frameworks for use in protocol planning and reporting.

Methods

The BC Healthy Connections Project RCT is examining the effectiveness of a nurse home-visiting program in improving child and maternal outcomes compared with existing services. Participants (N = 739) were girls and young women preparing to parent for the first time and experiencing socioeconomic disadvantage. Quantitative data were collected upon trial entry during pregnancy and during five follow-up interviews until participants’ children reached age 2 years. A framework was developed to guide retention of this study population throughout the RCT. We reviewed relevant literature and mapped essential retention activities across the study planning, recruitment and maintenance phases. Interview completion rates were tracked.

Results

Results from 3302 follow-up interviews (in-person/telephone) conducted over 4 years indicate high completion rates: 90% (n = 667) at 34 weeks gestation; and 91% (n = 676), 85% (n = 626), 80% (n = 594) and 83% (n = 613) at 2, 10, 18 and 24 months postpartum, respectively. Almost all participants (99%, n = 732) provided ongoing consent to access administrative health data. These results provide preliminary data on the success of the framework.

Conclusions

Our retention results are encouraging given that participants were experiencing considerable socioeconomic disadvantage. Standardized retention planning and reporting may therefore be feasible for health research in general, using the framework we have developed. Use of standardized retention protocols should be encouraged in research to promote consistency across diverse studies, as now happens with RCT and SR protocols. Beyond this, successful retention approaches may help inform health policy-makers and practitioners who also need to better reach, engage and retain underserved populations.

Trial registration

ClinicalTrials.gov, NCT01672060. Registered on 24 August 2012.

Engaging From Both Sides: Facilitating a Canadian Two-Generation Prenatal-to-Three Program for Families Experiencing Vulnerability

BACKGROUND

Young children living in families experiencing social vulnerability, including low income, mental illness, addictions, social isolation, and/or homelessness, are at risk of developmental delay. Two-generation programs can improve outcomes for preschool children, but underlying mechanisms and outcomes for younger children remain unclear.

PURPOSE

We explored program facilitation and identified developmental benefits of a two-generation program beginning prenatally.

METHODS

In our convergent, concurrent mixed methods study, we interviewed agency staff (n = 10) and held focus groups with parents (n = 14). We compared child (N = 100) development between program intake and exit as measured by the Ages and Stages Questionnaires 3rd edition.

RESULTS

Our core category, Engaging From Both Sides, included (a) Mitigating Adversity (focused codes Developing Trust, Letting Go of Fear, and Putting in the Effort); (b) Continual Learning (focused codes Staying Connected, and Taking it to the Community); (c) Fostering Families (focused codes Cultivating Optimism, and Happiness and Love); (d) Unravelling Cycles of Crisis (focused codes Advocating, and Helping Parents' Parent); and (e) Becoming Mainstream (focused codes Knowing Someone Has Your Back, and Managing Stress, Anxiety, and Anger). We found significant improvements in child Fine Motor, Problem-Solving, and Personal-Social domains between program intake and exit.

CONCLUSIONS

Our study adds to existing literature regarding mechanisms of two-generation programs beginning prenatally. Mitigating effects of intergenerational adversity was the primary motivation for interaction and engagement of staff and parents in two-generation programming, which improved child development.

Nurse-Family Partnership and Geography: An Intersectional Perspective

Nurse-Family Partnership is a targeted public health intervention program designed to improve child and maternal health through nurse home visiting. In the context of a process evaluation, we posed the question: "In what ways do Canadian public health nurses explain their experiences with delivering this program across different geographical environments?" The qualitative methodology of interpretive description guided study decisions and data were collected through 10 focus groups with 50 nurses conducted over 2 years. We applied an intersectionality lens to explore the influence of all types of geography on the delivery of Nurse-Family Partnership. The findings from our analysis suggest that the nature of clients' place and their associated social and physical geography emphasizes inadequacies of organizational and support structures that create health inequities for clients. Geography had a significant impact on program delivery for clients who were living with multiple forms of oppression and it worked to reinforce disadvantage.