Lessons from the past: A window on the future

Introduction The Manitoba Centre for Health Policy has provided international leadership in organizing and accessing administrative databases, linking and analyzing data and translating the findings of research into policy for three decades. During this period, MCHP has addressed numerous challenges in each of these areas. Objectives and Approach Linked data research is expanding rapidly in terms of access to new data sources, different types of data, sharing of data across jurisdictions, and advances in data analytics. Technical advances such as computing power and artificial intelligence support these developments while governance structures and ethical issues challenge them. This presentation will describe some of the challenges MCHP has met with a view to gaining insight into how solutions evolved and how experience can guide the future of linked data research. Results The scaling up of linked data research will need to address specific challenges including de-identification of free text, accessing and linking data from private enterprise such as wearables, and interdisciplinary collaboration to incorporate new techniques developed by computer scientists. Cross-jurisdictional data analysis presents challenges in addressing differences in data architecture. Inter-jurisdictional and international data sharing create ethical and governance challenges. Experience has demonstrated the critical role that relationship building plays in addressing each of these. These relationships are different depending on the partners. They are all based on the development of common use of language, understanding the motivation and concerns of each party, clearly articulating the benefits of the relationship and data use and attention to the cultural and political environment. Conclusion/Implications Lessons from the past can guide us in addressing challenges posed by the exciting opportunities available to us all. While many of these challenges will be solved with technical solutions, we should not overlook the importance of human relationships in building a culture of trust and collaboration as we mov

Academic and Social Outcomes for High‐Risk Youths in Manitoba

This study examined academic and social outcomes for high‐risk youths in Manitoba, using longitudinal, population‐based data. All children born in Manitoba in 1984‐1985 who resided in Winnipeg the year they turned 18 were included in analyses (N = 11,703). High risk youths were defined as those involved with child welfare services, living in poverty, and/or having a mother who was a teen at first childbirth. Of youths with one risk factor, 41 to 57 per cent failed to complete high school, and 84 per cent of those with all three risk factors did not complete high school, compared with only 18 per cent of youths with none of the risk factors. Multiple risk factors put youths at an even greater disadvantage. Similar poor outcomes for high risk youths were observed for performance in grade 9, unemployment in early adulthood, and teen births. The findings suggest an intractable cycle of risk and disadvantage with farreaching social and economic implications

A Longitudinal Analysis of the Families First Screening Program in Manitoba, Canada: Cleaning, Validating and Linking via Health Registry Data

Introduction Manitoba Public Health Nurses (PHNs) attempt to visit all families with newborns shortly after discharge from birth hospitalizations. Since 2000, PHNs have completed the Families First Screen (FFS) at these visits, to identify families at risk for child maltreatment. The information captured in FFS is a valuable tool for research. Objectives and Approach Our objective was to clean and validate FFS data and link to health data in the Manitoba repository in order to determine the percent of births in Manitoba hospitals that had FFS. We identified all babies born in Manitoba hospitals 2000-2015 using ICD-9-CM /ICD-10-CA codes. Mothers were identified through the Health Registry (Mom_Baby Link File) using scrambled Personal Health Identification Numbers (sPHINs). FFS data were linked to births via baby’s sPHIN. Determining which FFS records linked to babies required several steps of cleaning and validating the data to account for differences in birthdates between files, missing sPHINs, and multiple records. Results For example, in 2014 there were 16,079 births and 14,002 FFS records; 13,524 FFS had mother and/or baby sPHIN. For those missing baby sPHIN (9,295), 99.8% were retrieved via the Mom_Baby Link File. Linking the FFS to the hospital births we found: 3,043 births didn’t have an FFS; 12,762 had a single FFS, and 274 births had multiple FFS (i.e., baby associated with more than one mother, FFS and/or form date). To ensure that the baby was only associated with one mother and one FFS the most current FFS was kept. We found that in 2014, 81.07% (13,036/16,079) of the births had an FFS. In the longitudinal analysis, the percent of births with an FFS ranged from 74.6% in 2000 to 81.1% in 2014. Conclusion/Implications We were able to achieve good linkage between FFS and health registry data, allowing this rich data source to be used for research on maternal and child health. Information on percent of births with FFS has been shared with policy-makers over the years and changes to screening practices implemented

THE COMPLETE STORY: A POPULATION‐ BASED PERSPECTIVE ON SCHOOL PERFORMANCE AND EDUCATIONAL TESTING

All children born in Manitoba in 1984 were tracked for 18 years to assess their grade‐ 12 performance on a provincial examination according to a student’s socio‐economic status. The proportion of youths in families receiving social assistance judged to have passed their language arts exam dropped from 80 per cent to 12 per cent, depending on whether one counts only those in the cohort who took the test on time in 2002 or all youths born in 1984 who should have taken the test in 2002. Getting better data on performance and doing something about the discrepancies should become a Canadian priority. Key words: educational opportunity, exam performance, socio‐economic status, testing, longitudinal studies Tous les enfants nés au Manitoba en 1984 ont été suivis sur une période de 18 ans en vue d’évaluer leur rendement en 12e année lors d’un examen provincial, tenant compte de leur statut socioéconomique. La proportion de jeunes issus des familles recevant de l’aide sociale et considérés comme ayant réussi leur examen au plan des compétences linguistiques passe de 80 % à 12 %, selon que l’on compte seulement ceux qui, dans la cohorte, ont subi l’examen à temps en 2002 ou tous les jeunes nés en 1984 qui auraient dû subir l’examen. En matière d’égalité des chances, la performance du système scolaire actuel au Canada laisse à désirer. Mots clés: possibilités éducatives, résultats d’examen, statut socioéconomique, analyse longitudinale.

Is Participation in Out-of-School Programs Linked to Students’ Health, Educational and Social Outcomes?

Introduction Out-of-school programs for grade K-12 students support healthy behaviours, boost academic achievement, and strengthen social networks. The Boys and Girls Clubs of Winnipeg (BGCW) have been active for 40+ years; however, little is known about how participating in their programs influences students’ short- and long-term health, educational and social outcomes. Objectives and Approach We are investigating the association between participation in BGCW out-of-school programs using the individual-level data held in the population-based Manitoba Population Research Data Repository at the Manitoba Centre for Health Policy (MCHP). Data on BGCW program participation for children born 1987-2010 was linked with administrative records from the healthcare system, education system, and social services. The comparison group of non-participants was matched on age, sex, 3-digit postal code and school division. Outcomes of interest include health services use, teen pregnancy, grade repetition, high school graduation, enrollment in post-secondary institutions, receipt of income assistance, and involvement with the justice system. Results We conducted analyses of children (K-8) attending the Community Schools Investigator (CSI) summer enrichment program, an academic and recreational program that aims to combat learning loss for children in low-income neighbourhoods. After one summer of CSI, participants (n=970) were significantly more likely to repeat a grade than the matched comparison group (n=783) (5.4% CSI students repeated a grade [95% CI 3.9, 6.8] vs 2.76% comparison students [95% CI 2.20, 3.32]). However, the likelihood of CSI students repeating a grade dropped to the level of the comparison group after two or more years of participation in CSI (2.91% CSI students repeated a grade [95% CI 1.26, 4.56]). Ongoing analyses are examining how participating in CSI and other BGCW programs is linked to health and social outcomes. Conclusion/Implications Our findings suggest that engagement in a BGCW out-of-school summer program contributes to better educational outcomes for low-income students. Using the information-rich Data Repository at MCHP, we can examine additional outcomes across multiple sectors to demonstrate how out-of-school programs help young people achieve their full developmental potential

Evaluating area-based socioeconomic status predictors of pediatric health outcomes in Manitoba

Introduction Socioeconomic gradients in health exist in Canada. Although multiple Canadian area-based socioeconomic measures (ABSM) have been developed, none have been specifically validated against relevant pediatric outcomes. Our objective was to use key pediatric health outcomes and compare the strength of association with a number of ABSM, including income quintile. Objectives and Approach This is a retrospective cross-sectional assessment of the association between socioeconomic status (SES) measured by ABSM and key pediatric health outcomes at the population level. Data from the Manitoba Population Research Data Repository was used for residents aged 0-19y. The timeframe was 2010-2015. Outcomes included preterm births, birth weight, mortality, vaccination rates and teen pregnancy. Regressions used each outcome against various ABSM (e.g. CAN-Marg, SEFI2, INSPQ) or income quintile. Best model for each outcome was assessed by goodness of fit measure (AIC). Measures of inequality included SII (Slope Index of Inequality) and RII (Relative Index of Inequality, both RIImean and RIIratio). Results In our regression models, the 4 Can-Marg subcomponents consistently had about 15% lower AICs (best fit) across all 16 key pediatric outcomes compared to INSPQ (Raymond-Pampalon), income quintile or SEFI2 (Socioeconomic Factor Index - Version 2). Sex differences were small and inconsequential. Whether ABSMs were treated as continuous or categorical predictors was of little statistical consequence. Of note, 15 of the 16 outcomes had socioeconomic gradients identified by SII or RII on at least one of the ABSMs. Income quintile detected 12 of 15, CAN-Marg material deprivation detected 9; the combination of CAN-Marg material deprivation and ethnicity detected 13 of 15. SEFI2 detected only 3 and the National INSPQ detected 6. Conclusion/Implications There are significant health inequalities in pediatric outcomes in Manitoba (15 of 16 studied). Combining CAN-Marg measures of poverty (material deprivation) and ethnic concentration identified 13/15 cases of documented inequality and was the best ABSM for capturing pediatric health gradients; it was similar to income quintile alone

The Cycle of Child Protection Services Involvement: A Cohort Study of Adolescent Mothers

Introduction Adolescent girls in care of child protection services are more likely to become pregnant than adolescent girls not in care, and mothers who were in care are more likely to have their children placed in care. Objectives and Approach Linkable administrative data were used to determine whether adolescent mothers in care are at greater risk of having their child placed in care before age two. A population-based cohort of adolescent mothers whose first child was born in Manitoba, Canada between April 1, 1998, and March 31, 2013 (n = 5,942) was used. Adjusted odds ratios (AOR) of having that first child taken into care before their second birthday were compared between mothers who were in care (n = 576) and mothers who were not in care (n = 5, 366) at the birth of their child using logistic regression models. Results Adolescent mothers who were in care had greater odds of having their child taken into care before the child’s second birthday (AOR = 7.53; 95% CI = 6.19-9.14). Specifically, their children had higher odds of being taken into care in their first week of life (AOR = 11.64; 95% CI = 8.83-15.34), between one week and their first birthday (AOR = 3.63; 95% CI = 2.79-4.71)., and between their first and second birthday (AOR = 2.21; 95% CI = 1.53-3.19). Conclusion/Implications Findings support an intergenerational cycle of involvement with child protection services. More and better services are required for adolescent mothers who give birth while in care of child protection services

Does social capital flatten the social gradient in early childhood development? An ecological study of two provinces in Canada

Social capital is thought to buffer the negative effects of low income on health and thereby flatten the social gradient. Child development research on social capital has suggested that social networks of adults and children in a neighborhood may play a protective role in children's outcomes. Yet little is known about how this relationship applies to diverse developmental outcomes in early childhood. This study examines whether the presence of role model adults and the willingness of neighbors to help keep children safe moderates the relationship between neighborhood income and five developmental outcomes for children in kindergarten: (1) physical health and well-being, (2) social competence, (3) emotional maturity, (4) language and cognitive development, and (5) communication and general knowledge. We linked neighborhood-level data on child development from two Canadian provinces, British Columbia (BC, n = 100) and Ontario (n = 482), to neighborhood-level data on social capital from the Ontario Kindergarten Parent Survey, and the BC Social Capital Study; and income data from the 2006 Canadian Census. Multiple regression analyses were conducted to examine the main and interaction effects of social capital and income in relation to child development outcomes. In Ontario, higher levels of social capital were associated with better child outcomes on all five developmental domains. Similar trends were observed in BC. Higher levels of social capital flattened the income gradient in language and cognitive development in both provinces, and social competence in Ontario. Implications for research and practice are discussed

Prenatal Exposure to Intimate Partner Violence and Developmental Health in Children at Kindergarten: Linking Canadian Population-Level Administrative Data.

Objective Using population-wide administrative data, the objective was to provide Canadian evidence on the longitudinal relationship between maternal intimate partner violence (IPV) victimization and children’s developmental health. Using provincial prosecution records, we examined developmental vulnerability (DV) at kindergarten of children prenatally exposed to maternal IPV victimization compared to unexposed counterparts. Approach This retrospective cohort study linked administrative datasets (legal, health, education, social services) from the Population Research Data Repository at the Manitoba Centre for Health Policy. Exposed mother-child pairs with 1+ prosecution record of maternal IPV victimization during pregnancy between 2003 and 2018 in Manitoba (n = 1,117) were matched to unexposed pairs (1:3) based on sex/birthdate of child and neighbourhood income. DV at kindergarten was measured across 5 domains (physical, social, emotional, language/cognitive [LC], communication/general knowledge) using the Early Developmental Instrument (EDI). Children without eligible EDI scores were excluded. Multiple logistic regression models were conducted to address the objective. Results The eligible cohort included 927 children (exposed n=229, unexposed n=698); 31.07% of the cohort was developmentally vulnerable in one or more domains (1/+) and 19.53% was developmentally vulnerable in two or more domains (2/+). Children who were prenatally exposed to maternal IPV victimization had increased odds of vulnerability across all 5 developmental domains (e.g., physical health/wellness: OR=2.83[1.95,4.10]; LC development: OR=2.45[1.65,3.64]). Unadjusted ORs showed statistically significant associations between maternal exposure of prenatal IPV victimization and DV in 1/+ (OR=2.70[1.98,3.68]) and 2/+ (OR=2.48[1.75,3.50]). When adjusted for covariates (e.g., maternal income assistance, mental health, child abuse history), no statistically significant relationship was found for any of the domains (e.g., LC development: aOR=0.98[0.53,1.81]), 1/+ (aOR=1.17[0.72,1.88]), and 2/+ (aOR=1.14[0.67,1.95]). Conclusion The unadjusted, statistically significant associations suggest children exposed to maternal IPV victimization prenatally may face associated social/health risks. The finding highlights the need to consider potential factors that put children at risk of DV when developing and implementing support systems/interventions for children exposed to maternal IPV victimization

A Decolonizing Approach in Population Health Research: Examining the Association between the federal maternal evacuation policy on Maternal and Child outcomes in First Nation (FN) Communities in Manitoba.

Objectives Responding to the Truth and Reconciliation Commission of Canada’s (TRC) Call to Action #19 to close the gap in maternal/child outcomes, the goal of this study was to provide a baseline for select outcomes and demonstrate how an Indigenous/decolonizing framework can be applied to population health research involving Indigenous people. Approach This retrospective cohort study was embedded within a decolonizing and Indigenous framework. Data extracted from administrative data housed at the Manitoba Centre for Health Policy was utilized to create a cohort of low-risk women residing in FN communities delivering a baby between 2005-2015. Two groups of mother/child dyads were compared: those evacuated for birth and those who were not required to leave home. Data were analyzed to assess the association between the evacuation policy on health outcomes. Results Decolonizing and Indigenous frameworks are feasible, essential, and necessary in population health research involving Indigenous people. This methodology does not detract from scientific rigor. In keeping with Indigenous methodology, Knowledge Keepers and a Grandmother Advisor informed the research from the onset, including insightful dialogue about the study findings. Using such an approach, this study generated evidence that the present-day OFC policy continues to harm Indigenous women, families, and communities. The OFC policy is associated with increased odds of inadequate PNC (OR 1.64 1.51, 1.79 CI) and small for gestational age births (OR 1.25 1.02, 1.50 CI) and decreased breastfeeding initiation (OR 0.55 0.50, 0.61 CI) and maternal psychological distress diagnoses (OR .43 0.36, 0.51), after adjusting for various confounders. Conclusion This study documented a journey of an Anishinaabekwe in the space where western and Indigenous methodologies met. In answering the TRC call to improve maternal and infant outcomes, epidemiological and population health research requires epistemological frameworks that adequately incorporate the voices and realities of Indigenous people's lives while remaining scientifically rigorous