An affirming approach to caring for transgender and gender-diverse youth.

Increasing numbers of youth identify as transgender or gender-diverse (TGD). Many paediatricians and primary care providers (PCPs) will encounter this population in their practice, either for gender-related care or general health needs. This statement is intended as a resource to guide paediatricians and PCPs in implementing an affirming approach to routine health care provision for all youth. Furthermore, it presents information to assist providers in responding to requests for counselling from TGD youth and their families around potential options for medical transition, and in making referrals to specialized services, if desired and relevant. Finally, as demand for gender-affirming care is anticipated to continue to increase, some health care providers (HCPs) may wish to develop the knowledge and skills required to initiate adolescents on hormone-blocking agents and gender-affirming hormones. This document is not intended to be a clinical practice guideline, but will provide foundational information regarding these potential components of gender-affirming care, recognizing that the needs and goals of individual adolescents may or may not include such interventions. Additional resources relevant to developing the expertise required to provide gender-affirming interventions will also be identified.

Une approche d'affirmation pour les soins aux jeunes transgenres et de diverses identités de genre.

Un nombre croissant de jeunes s'identifient comme transgenres ou de diverses identités de genre. De nombreux pédiatres et dispensateurs de soins de première ligne accueilleront cette population dans leur pratique, dans le cadre de soins liés au genre ou de soins de santé généraux. Le présent document de principes se veut une ressource pour orienter les pédiatres et les dispensateurs de soins de première ligne à adopter une approche d'affirmation pour la prestation des soins réguliers à tous les jeunes. De plus, il contient de l'information visant à aider les dispensateurs à répondre aux demandes de conseils des jeunes transgenres et de diverses identités de genre et de leur famille au sujet des possibilités de transition médicale et d'orientation vers des services spécialisés s'ils le désirent et le jugent pertinent. Enfin, on anticipe que la demande de soins d'affirmation de genre continue d'augmenter, et certains dispensateurs de soins peuvent souhaiter acquérir les connaissances et les habiletés nécessaires pour amorcer les inhibiteurs d'hormones et les hormones d'affirmation de genre chez les adolescents. Le présent document ne contient pas de directives cliniques, mais de l'information fondamentale au sujet des divers éléments possibles des soins d'affirmation de genre, tout en reconnaissant que les besoins et les objectifs d'adolescents particuliers n'incluent pas automatiquement de telles interventions. D'autres ressources permettant d'acquérir les compétences nécessaires pour offrir des interventions d'affirmation de genre sont également proposées.

Adolescents' experiences with group antenatal care: Insights from a mixed-methods study in Senegal.

OBJECTIVES: Group antenatal care (G-ANC) is an innovative model in which antenatal care is delivered to a group of 8-12 women of similar gestational age. Evidence from high-income countries suggests G-ANC is particularly effective for women from marginalised populations, including adolescents. The objective of this study was to examine the experiences of Senegalese adolescents engaged in group antenatal care. METHODS: This convergent parallel mixed-methods study is derived from a larger effectiveness-implementation hybrid pilot study conducted in Kaolack district, Senegal. Quantitative data for adolescent participants were collected through baseline and postnatal surveys and descriptively analysed. One-on-one interviews and focus-group discussions were conducted with adolescent participants, and qualitative data were analysed using qualitative descriptive analysis. RESULTS: Forty-five adolescents aged 15-19 participated in G-ANC, with a median age of 18 years. The majority (93.3%) were married, and 64.4% were nulliparous. Findings indicated similar levels of G-ANC participation for adolescent and adult women. The majority (93.1%) of participants who had previously attended individual ANC indicated they would prefer G-ANC to individual care for a future pregnancy. Qualitative findings indicated key facets of consideration relevant to G-ANC for adolescents include social connectedness, the influence of social norms and the opportunity for engagement in healthcare. CONCLUSIONS: This study suggests that G-ANC has the potential to be an adolescent-responsive and culturally appropriate method of delivering antenatal care in Senegal.

The relationship between pubertal timing and under-nutrition in rural Pakistan.

INTRODUCTION: Sexual development in females and males are routinely measured according to the Tanner Stages. Sparse data exist on the timing of pubertal milestones in Pakistan. To fill this gap, the age of attainment of pubertal milestones and their relationship with nutritional status was explored among children and adolescents living in the rural district of Matiari, Pakistan. METHODS: Anthropometry, nutrition biomarkers and Tanner Stage were assessed among girls aged 9.0-14.9 years (n = 723) and boys aged 10.0-15.9 years (n = 662) who were free from known disease in the rural District of Matiari, Pakistan. Median age was calculated for all Tanner Stages and menarche. Multivariable linear regressions were undertaken to determine covariates associated with the timing (age) of pubertal milestones. RESULTS: Among participants living in this rural community, the median age of puberty onset for girls was 11.9 years (95%CI:10.9; 12.5) and boys was 12.3 years (95%CI:11.5; 12.9). Age at first menarche was 12.9 years (95%CI:12.1; 13.3). Undernutrition was widespread among adolescents in this community. Thirty-seven percent of females and 27.0% of males were stunted while 20.5% of females and 31.3% of males were thin. Only 8% (n = 58) of females and 12% (n = 78) of males were free from any nutrient deficiency with most adolescents having two or three nutrient deficiencies. CONCLUSIONS: Undernutrition (stunting or thinness) was associated with relatively older ages for early puberty stages but not puberty completion. This may decrease the duration of the pubertal growth spurt and curtail potential catch-up growth that may occur during puberty. Efforts to decrease nutrient deficiencies, stunting and thinness beyond childhood should be made in rural Pakistan.

Medical neglect in Ontario: Implications for health care provision.

OBJECTIVES: This study explores child welfare investigations for medical neglect in Ontario, Canada, focusing on household, family and child characteristics of such investigations and factors associated with substantiated victimization. METHODS: This analysis used data from the Ontario Incidence Study of Reported Child Abuse and Neglect 2018. Bivariate analyses compared medical neglect with other neglect investigations to create a profile of medical neglect investigations in Ontario, and a binary logistic regression determined which case characteristics were associated with substantiation of medical neglect. RESULTS: Compared with other neglect investigations, medical neglect investigations were more likely to involve children less than 1 year old and caregivers under 21 years old, households that had run out of money in the past 6 months for basic necessities, primary caregivers with few social supports, mental health issues or drug/solvent abuse concerns, and children with at least one functioning concern. Medical neglect investigations in which the primary caregiver had few social supports were almost four times more likely to be substantiated (OR=3.698, P<0.05). CONCLUSIONS: While the public's perception of medical neglect tends to focus on parental refusal of treatment due to philosophical/religious beliefs, this Ontario sample indicates that medical neglect is often driven by financial constraints and a lack of social support. Implications for health care providers within a universal health care system are discussed.

Promoting adherence in adolescents and young adults with cancer to optimize outcomes: A developmentally oriented narrative review.

Adherence is a critical consideration in ongoing efforts to improve outcomes among adolescents and young adults (AYAs) with cancer. In this narrative review, we embed existing conceptualizations of adherence within a developmental context to provide a novel vantage point from which to examine this important issue. Applying this developmentally oriented framework, we summarize the most current literature on strategies to enhance adherence in the AYA population. A developmentally informed approach to working with AYAs can elucidate unique strengths and vulnerabilities of this population and offer a new perspective on opportunities to respond to biopsychosocial barriers to adherence in a strengths-based, collaborative manner.

National age-of-consent laws and adolescent HIV testing in sub-Saharan Africa: a propensity-score matched study.

OBJECTIVE: To estimate the association between legal age of consent and coverage of human immunodeficiency virus (HIV) testing among adolescents in countries with high HIV-burden. METHODS: We analysed data from adolescents aged 15-18 years, who participated in Demographic and Health Surveys or AIDS Indicator Surveys between 2011 and 2016, in 15 sub-Saharan African countries. To improve balance in the distribution of measured individual- and country-level characteristics, we used propensity score matching between adolescents in countries with more versus less restrictive age-of-consent laws (≤ 15 years versus ≥ 16 years). We estimated the percentage of individuals who self-reported that they have done an HIV test in the past 12 months and compared the differences in such testing rates among adolescents exposed to lower versus higher age-of-consent laws. We also investigated effect modifications by sex and age. FINDINGS: Legal age of consent below 16 years was associated with an 11.0 percentage points higher coverage of HIV testing (95% confidence interval, CI: 7.2 to 14.8), corresponding to a rate ratio of 1.74 (95% CI: 1.35 to 2.13). HIV testing rate had a stronger association with lower age of consent among females than males. The testing rates differences were 14.0 percentage points (95% CI: 8.6 to 19.4) for females and 6.9 percentage points (95% CI: 1.6 to 12.2) for males (P-value for homogeneity = 0.07). CONCLUSION: This study provides evidence to support the recent World Health Organization's recommendations that countries should examine current laws and address age-related barriers to uptake of sexual and reproductive health services.

How can engagement of adolescents in antenatal care be enhanced? Learning from the perspectives of young mothers in Ghana and Tanzania.

BACKGROUND: Adolescents are especially vulnerable due to increased biological, social and economic risks associated with early pregnancy and childbirth, yet most pregnancy and childbirth-related complications are preventable through a combination of proven, cost-effective clinical interventions including timely antenatal care (ANC). The voices and specific needs of adolescents are currently underrepresented in the literature on antenatal and maternity care. Objectives were to a) increase our understanding of adolescents' experiences with, and perceptions of, ANC and b) explore how these perspectives might be applied towards future initiatives to enhance adolescent care-seeking behaviour. METHODS: This cross-sectional qualitative study employed 14 focus group discussions with 112 adolescents aged 15-20 years in Singida Region in Tanzania and Volta and Eastern Regions in Ghana who had accessed ANC during their most recent pregnancy. We were particularly interested in what these young women valued and understood about their ANC experience, as this would provide insights into what factors motivated them to seek care. Transcripts were analyzed using conventional content analysis. Based on emergent themes and drawing on the Health Belief Model (HBM) as an analytical tool, a conceptual framework was developed to illustrate the myriad factors influencing adolescents' decision to attend ANC. RESULTS: Interpreting results through an adapted HBM demonstrates that adolescent health-seeking behaviour can vary widely among individuals and within communities, is shaped by the opinions of family members and peers, and is intrinsically influenced by broader health systems-level factors. CONCLUSIONS: The results led to our development of an adapted theory-based framework to illustrate the complexity of adolescent care-seeking during pregnancy in resource-poor settings. We demonstrate that while an adolescent mother is capable of exercising her own agency, she is also developmentally vulnerable to external influences and must be supported in her ability to make autonomous decisions. While the model presented here focuses specifically on ANC utilization, it may have applications for understanding how adolescents engage with health services more broadly.

Receptiveness to Patient-Delivered Partner Therapy (PDPT) for Chlamydia Infection: Exploratory Findings From a Sample of Canadian Youth.

OBJECTIVES: To determine hypothetical receptiveness among Canadian 15-24 year old youth to providing and receiving patient-delivered partner therapy (PDPT) for Chlamydia trachomatis infection and to explore patient characteristics associated with receptiveness. METHODS: An anonymous cross-sectional survey was administered to a convenience sample of 312 youth ages 15-24 years presenting to a youth-focused community health centre (CHC) in Ajax, ON. The survey probed comfort with PDPT for chlamydia, both if the respondent was the hypothetical index case or the hypothetical partner. Participants ranked their hypothetical receptiveness on a five-point Likert Scale. Simple descriptive statistics were performed. RESULTS: Mean age of respondents was 19.2 years. The majority (87.6%) endorsed previous sexual activity, of which 18.8% reported a previous chlamydia diagnosis. Seventy-eight percent of respondents endorsed hypothetical comfort with providing PDPT, while 65.4% and 53.3% of respondents expressed hypothetical willingness to receive PDPT if they were symptomatic and asymptomatic from chlamydia, respectively. Having multiple recent sexual partners was associated with increased hypothetical receptiveness to PDPT. Age was not correlated with a significant difference in responses. CONCLUSION: Among 312 Canadian youth, a majority expressed hypothetical comfort with providing and receiving PDPT for C. trachomatis. Having multiple recent sexual partners significantly increased reported potential receptiveness. Within this sample, PDPT thus has a significant potential to reach youth engaging in higher-risk sexual behavior. Variations in comfort based on symptom status emphasized the importance of tailoring partner management strategies to individual patients and of ongoing patient education.

Embracing uncertainty, managing complexity: applying complexity thinking principles to transformation efforts in healthcare systems.

BACKGROUND: Complexity thinking is increasingly being embraced in healthcare, which is often described as a complex adaptive system (CAS). Applying CAS to healthcare as an explanatory model for understanding the nature of the system, and to stimulate changes and transformations within the system, is valuable. MAIN TEXT: A seminar series on systems and complexity thinking hosted at the University of Toronto in 2016 offered a number of insights on applications of CAS perspectives to healthcare that we explore here. We synthesized topics from this series into a set of six insights on how complexity thinking fosters a deeper understanding of accepted ideas in healthcare, applications of CAS to actors within the system, and paradoxes in applications of complexity thinking that may require further debate: 1) a complexity lens helps us better understand the nebulous term "context"; 2) concepts of CAS may be applied differently when actors are cognizant of the system in which they operate; 3) actor responses to uncertainty within a CAS is a mechanism for emergent and intentional adaptation; 4) acknowledging complexity supports patient-centred intersectional approaches to patient care; 5) complexity perspectives can support ways that leaders manage change (and transformation) in healthcare; and 6) complexity demands different ways of implementing ideas and assessing the system. To enhance our exploration of key insights, we augmented the knowledge gleaned from the series with key articles on complexity in the literature. CONCLUSIONS: Ultimately, complexity thinking acknowledges the "messiness" that we seek to control in healthcare and encourages us to embrace it. This means seeing challenges as opportunities for adaptation, stimulating innovative solutions to ensure positive adaptation, leveraging the social system to enable ideas to emerge and spread across the system, and even more important, acknowledging that these adaptive actions are part of system behaviour just as much as periods of stability are. By embracing uncertainty and adapting innovatively, complexity thinking enables system actors to engage meaningfully and comfortably in healthcare system transformation.

How Canada can help global adolescent health mature.

BACKGROUND: There is an emerging focus on adolescent health within the global health community as we come to recognize that the adolescent years are formative in determining health and health-related behaviours across the life-course. Such attention is not only relevant on the global scale but is imperative in Canada as well. MAIN BODY: This commentary provides a brief review of recent investments targeting global adolescent health and presents five potential avenues for action which emerged out of the recent Canadian Partnership for Women and Children's Health (CanWaCH) Global Adolescent Health conference. These avenues are: (1) Demand data; (2) Embrace complexity; (3) Be holistic; (4) Engage adolescents; and (5) Commit to Canada. CONCLUSION: As international agencies signal their commitment to global adolescent health, Canada is well-positioned to lead this call to action by espousing the fundamental adolescent health tenets of advocacy, equity, justice, and collaboration in order to move this critical agenda forward.

Three hundred babies born to underhoused mothers in Toronto-understanding the problem and how we can help.

Little is known about pregnancy in underhoused women, possibly because the number of underhoused mothers with babies in Toronto has been significantly underestimated. Using a novel data collection method, it has been found that there are approximately 300 babies being born each year to underhoused women in Toronto. This finding has significant public health implications, as these women are at increased risk of multiple issues related to physical health, mental health, child protection, poverty and safety. This commentary presents a new data collection strategy, highlights the importance of accurate data collection and offers suggestions for supports for this over-looked population.

Pathways to Care for Adolescents Attending a First Hormone Appointment at Canadian Gender Affirming Medical Clinics: A Cross-Sectional Analysis From the Trans Youth CAN! Study.

PURPOSE: Limited research has examined adolescents' pathways to gender-affirming medical care. METHODS: Enrollment in Trans Youth CAN! was at an initial appointment for hormone suppression or gender-affirming hormones, if pubertal or postpubertal, and < 16 years old. Adolescent/parent surveys and clinical records were obtained for 174 adolescents and 160 matched parents at 10 medical clinics across Canada. RESULTS: Participants' mean age was 14.3 years, 95% confidence interval (CI) [14.1-14.6]; 126 (75.8%) identified as boys, 32 (15.9%) girls, and 14 (8.3%) nonbinary. Average wait time after referral was 269 days (95% CI [244, 294]). Adolescents reported 13.5 months seeking gender-affirming medical care, longer than reported by their parents (p = .0001). Family physicians or pediatricians provided 68% of referrals. Prior to clinic, adolescents saw an average of 2.7 (maximum eight) different types of providers (95% CI [2.4, 2.9]). Indigenous background and greater number of types of providers seen were associated with longer time seeking care. The majority of adolescents had ever engaged in self-harm (67.6%), with 58.1% ever seriously considering suicide and 36.0% attempting. Previous self-harm and suicidal thoughts were associated with longer wait times and older age. Seventeen point seven percent of parents/caregivers reported their adolescents had participated in conversion therapy or that parents had considered it. DISCUSSION: The majority of participants were referred by family physicians or pediatricians, seeing multiple types of providers regarding their gender prior to referral. Adolescents experienced significant wait times. Indigenous adolescents reported longer times seeking care. Adolescents with longer wait times were more likely to have ever engaged in self-harm or had suicidal ideation.

Teen Pregnancy and Risk of Premature Mortality.

Importance: Unintentional injury, suicide, and homicide are leading causes of death among young females. Teen pregnancy may be a marker of adverse life experiences. Objective: To evaluate the risk of premature mortality from 12 years of age onward in association with number of teen pregnancies and age at pregnancy. Design, Setting, and Participants: This population-based cohort study was conducted among all females alive at 12 years of age from April 1, 1991, to March 31, 2021, in Ontario, Canada (the most populous province, which has universal health care and data collection). The study period ended March 31, 2022. Exposures: The main exposure was number of teen pregnancies between 12 and 19 years of age (0, 1, or ≥2). Secondary exposures included how the teen pregnancy ended (birth or miscarriage vs induced abortion) and age at first teen pregnancy. Main Outcomes and Measures: The main outcome was all-cause mortality starting at 12 years of age. Hazard ratios (HRs) were adjusted for year of birth, comorbidities at 9 to 11 years of age, and area-level education, income level, and rurality. Results: Of 2 242 929 teenagers, 163 124 (7.3%) experienced a pregnancy at a median age of 18 years (IQR, 17-19 years). Of those with a teen pregnancy, 60 037 (36.8%) ended in a birth (of which 59 485 [99.1%] were live births), and 106 135 (65.1%) ended in induced abortion. The median age at the end of follow-up was 25 years (IQR, 18-32 years) for those without a teen pregnancy and 31 years (IQR, 25-36 years) for those with a teen pregnancy. There were 6030 deaths (1.9 per 10 000 person-years [95% CI, 1.9-2.0 per 10 000 person-years]) among those without a teen pregnancy, 701 deaths (4.1 per 10 000 person-years [95% CI, 3.8-4.5 per 10 000 person-years]) among those with 1 teen pregnancy, and 345 deaths (6.1 per 10 000 person-years [95% CI, 5.5-6.8 per 10 000 person-years]) among those with 2 or more teen pregnancies; adjusted HRs (AHRs) were 1.51 (95% CI, 1.39-1.63) for those with 1 pregnancy and 2.14 (95% CI, 1.92-2.39) for those with 2 or more pregnancies. Comparing those with vs without a teen pregnancy, the AHR for premature death was 1.25 (95% CI, 1.12-1.40) from noninjury, 2.06 (95% CI, 1.75-2.43) from unintentional injury, and 2.02 (95% CI, 1.54-2.65) from intentional injury. Conclusions and Relevance: In this population-based cohort study of 2.2 million female teenagers, teen pregnancy was associated with future premature mortality. It should be assessed whether supports for female teenagers who experience a pregnancy can enhance the prevention of subsequent premature mortality in young and middle adulthood.

Sexual and Reproductive Health Outcomes Among Adolescent Females During the COVID-19 Pandemic.

BACKGROUND AND OBJECTIVES: Coronavirus disease 2019 (COVID-19) posed a significant threat to adolescents' sexual and reproductive health. In this study, we examined population-level pregnancy and sexual health-related care utilization among adolescent females in Ontario, Canada during the pandemic and evaluated relationships between these outcomes and key sociodemographic characteristics. METHODS: This was a population-based, repeated cross-sectional study of >630 000 female adolescents (12-19 years) during the prepandemic (January 1, 2018-February 29, 2020) and COVID-19 pandemic (March 1, 2020-December 31, 2022) periods. Primary outcome was pregnancy; secondary outcomes were contraceptive management visits, contraception prescription uptake, and sexually transmitted infection (STI) management visits. Poisson models with generalized estimating equations for clustered count data were used to model pre-COVID-19 trends and forecast expected rates during the COVID-19 period. Absolute rate differences between observed and expected outcome rates for each pandemic month were calculated overall and by urbanicity, neighborhood income, immigration status, and region. RESULTS: During the pandemic, lower-than-expected population-level rates of adolescent pregnancy (rate ratio 0.87; 95% confidence interval [CI]:0.85-0.88), and encounters for contraceptive (rate ratio 0.82; 95% CI:0.77-0.88) and STI management (rate ratio 0.52; 95% CI:0.51-0.53) were observed. Encounter rates did not return to pre-pandemic rates by study period end, despite health system reopening. Pregnancy rates among adolescent subpopulations with the highest pre-pandemic pregnancy rates changed least during the pandemic. CONCLUSIONS: Population-level rates of adolescent pregnancy and sexual health-related care utilization were lower than expected during the COVID-19 pandemic, and below-expected care utilization rates persist. Pregnancy rates among more structurally vulnerable adolescents demonstrated less decline, suggesting exacerbation of preexisting inequities.

Feasibility study on the Model Schools Paediatric Health Initiative pilot project.

OBJECTIVES: To assess the feasibility and efficacy of a school-based health centre (SBHC) established at an inner-city elementary school to help alleviate barriers to accessing health care. METHODS: A retrospective chart review of the first year of the SBHC was conducted. Feasibility metrics included the number of children who enrolled at the SBHC. Efficacy metrics included the proportion of enrolled children who attended and received new diagnoses and treatment plans. RESULTS: A total of 379 children enrolled at the SBHC and 127 children attended. Of the SBHC users, 74.0% received a new diagnosis and 90.6% received a treatment plan; 79.6% were from families with an annual income <$30,000, and 91.6% were from families whose first language was not English. CONCLUSION: The SBHC represents a feasible and efficacious way to enhance the delivery of health care to inner-city children.

OBJECTIF: Évaluer la faisabilité et l'efficacité d'un centre de santé en milieu scolaire (CSMS) installé dans l'école primaire d'un quartier pauvre pour contribuer à réduire les obstacles liés à l'accès aux soins. MÉTHODOLOGIE: Les chercheurs ont mené une analyse rétrospective des dossiers de la première année du CSMS. Comme mesures de faisabilité, ils ont inclus le nombre d'enfants inscrits au CSMC, tandis que les mesures d'efficacité incluaient la proportion d'enfants inscrits qui ont utilisé le service et reçu de nouveaux diagnostics et plans thérapeutiques. RÉSULTATS: Au total, 379 enfants se sont inscrits au CSMS et 127 ont utilisé le service. Parmi les utilisateurs du CSMS, 74,0 % ont reçu un nouveau diagnostic et 90,6 %, un plan thérapeutique. De plus, 79,6 % provenaient d'une famille dont le revenu annuel était inférieur à 30 000 $, et la langue maternelle de 91,6 % d'entre eux n'était pas l'anglais. CONCLUSION: Le CSMS est un moyen faisable et efficace d'améliorer la prestation des soins aux enfants des quartiers pauvres.

Contraception use among female youth with disabilities: Secondary analysis of a Canadian cross-sectional survey.

BACKGROUND: Non-use of contraception among sexually active youth is an important contributor to unintended pregnancy, but contraception use among disabled youth is poorly understood. OBJECTIVE: To compare contraception use in female youth with and without disabilities. METHODS: We used data from the 2013-2014 Canadian Community Health Survey on sexually active 15 to 24-year-old females with (n = 831) and without (n = 2,700) a self-reported functional or activity limitation, who reported that it was important to them to avoid getting pregnant. We used log binomial regression to derive adjusted prevalence ratios (aPR) for use of any vs. no contraception, and for oral contraception, injectable contraception, condoms, other contraception methods, and dual methods separately, comparing youth with and without disabilities. Adjusted analyses controlled for age, school enrollment, household income, marital status, race/ethnicity, immigrant status, and health region. RESULTS: There were no differences in the use of any contraception (85.4% vs. 84.2%; aPR 1.03, 95% CI 0.998-1.06), oral contraception (aPR 0.98, 95% CI 0.92-1.05), condoms (aPR 1.00, 95% CI 0.92-1.09), or dual methods (aPR 1.02, 95% CI 0.91-1.15), comparing youth with and without disabilities. Those with disabilities were more likely to use injectable contraception (aPR 2.31, 95% CI 1.59-3.38) and other contraception methods (aPR 1.54, 95% CI 1.25-1.90). CONCLUSION: Youth at risk of unintended pregnancy had similar overall use of contraception, regardless of disability status. Future studies should examine the reasons for higher uptake of injectable contraception in youth with disabilities, with possible implications for health care provider education on access to youth-controlled methods for this group.

Association of maternal risk factors with infant maltreatment: an administrative data cohort study.

OBJECTIVE: We aimed to evaluate the risk of infant maltreatment associated with commonly used criteria for home visiting programmes: young maternal age, maternal adversity (homelessness, substance abuse, intimate partner violence), newcomer status and mental health concerns in Ontario, Canada. DESIGN: This retrospective cohort study included infants born in hospital in Ontario from 1 April 2005 to 31 March 2017 captured in linked health administrative and demographic databases. Infants were followed from newborn hospitalisation until 1 year of age for child maltreatment captured in healthcare or death records. The association between type and number of maternal risk factors, and maltreatment, was analysed using multivariable logistic regression modelling, controlling for infant characteristics and material deprivation. Further modelling explored the association of each year of maternal age with maltreatment. RESULTS: Of 989 586 infants, 434 (0.04%) had recorded maltreatment. Maternal age <22 years conferred higher risk of infant maltreatment (adjusted OR (aOR) 5.5, 95% CI 4.5 to 6.8) compared with age ≥22 years. Maternal mental health diagnoses (aOR 2.0, 95% CI 1.6 to 2.5) were also associated with maltreatment, while refugee status appeared protective (aOR 0.6, 95% CI 0.4 to 1.0). The odds of maltreatment increased with higher numbers of maternal risk factors. Maternal age was associated with maltreatment until age 28 years. CONCLUSION: Infants born to young mothers are at greater risk of infant maltreatment, and this association remained until age 28 years. These findings are important for ensuring public health interventions are supporting populations experiencing structural vulnerabilities with the aim of preventing maltreatment.