Of the eight school in the intervention arm, four schools will be linked to a school based health center (SBHC) at Sprucecourt or Nelson Mandela Park Public Schools (established in partnership with the department of Pediatrics at St. Michael's hospital) and four schools will be linked to a SBHC at Parkdale Public School (established in partnership with St. Joseph's Health Centre). SBHC pediatricians will attend School Support Team (SST) meetings at all intervention schools and students with developmental concerns identified at the SST meetings will be referred to the SBHC.

Of the eight schools assigned to the control condition, four will be in the South East area of the city closer to Nelson Mandela Park PS and four will be in the South West area of the city closer to St. Josephs Health Center. The eight schools will be subject to standard of care which is: when a child is identified by the SST (no pediatrician present), students identified with developmental concerns are advised to access a pediatric/developmental assessment in the community.

The SBHC will be staffed by a family physician, two pediatricians and a developmental pediatrician, each with at least one half-day of clinic time per week from September through June. The SBHC is also staffed by a clinic coordinator who is responsible for booking appointments on a first-referral, first-serve basis.

For each student attending the schools enrolled in this study, the report cards have the student's grade for all the core subjects reported as a percentage (0-100%). The higher the grade the better the academic performance. There is also the class median reported as a percentage so that the student's academic performance in that particular subject can be compared to that of their class's average performance for that same subject.

Numeric data from report cards will be analyzed using a linear mixed effect model where the schools are the random effects and the baseline report cards are adjusted for by including it as a covariate. Baseline report cards will be determined as those that have occurred most proximal to the SST date. The treatment effect will be expressed as the mean adjusted difference in standardized test scores with 95% confidence interval.

The Canadian Achievement Test 4 (CAT4) is a standardized test administered to students in grades 1-6 across Canada to assess basic skill areas: reading, writing, and mathematics. Higher scores mean better outcome. The raw score (0-100%) on each test section is converted to a national stanine range (1-9), where scores in the range of 1-3 is considered below-average (i.e. Low (L)), scores in the range of 4-6 are considered average (i.e. Competent (C)) and scores 7-9 are considered above average (i.e. Proficient (P)) performence.

Standardized test scores will be analyzed using a linear mixed effect model where the schools are the random effects and the baseline test scores are adjusted for by including it as a covariate. Baseline test scores will be determined as those that have occurred most proximal to the SST date.The treatment effect will be expressed as the mean adjusted difference in standardized test scores with 95% confidence interval.

Toronto District School Board (TDSB) Standardized tests include the Education Quality and Accountability Office (EQAO) test. The EQAO is a test that assesses literacy and math skills and is administered to students in grades 3 and 6. Based on the student's performance on the EQAO, the student's raw score is converted into a score on a scale from 200 (level 2) to 400 points (level 4). A score of 300 (level 3) (i.e. average student score) is required to be successful. A score above 300 (i.e. level 4 (400 points)) is considered above average.

Standardized test scores will be analyzed using a linear mixed effect model where the schools are the random effects and the baseline test scores are adjusted for by including it as a covariate. Baseline test scores will be determined as those that have occurred most proximal to the SST date.The treatment effect will be expressed as the mean adjusted difference in standardized test scores with 95% confidence interval.

Children from inner city schools may face additional difficulties accessing healthcare to address developmental and mental health concerns, particularly when they come from families with socioeconomic challenges, language barriers and limited means of transportation. Data collection will entail the collection of in-depth, in-person interviews with each participant 18 months after the SST meeting in both arms. During baseline interviews, participants will be asked questions regarding their current experiences (and contexts) at the outset of the trial. At the end of the trial, participants will be asked to reflect on their experiences before the trial began, how their experiences and perspectives changed as a result of the trial, and their reflections on trial implementation. Interviews will be conducted by experienced qualitative research personnel, audio taped and transcribed verbatim.