SWYC – Survey of Well-being of Young Children

What it evaluates

The SWYC is a comprehensive, parent-completed screening instrument that covers three domains:

• Developmental Milestones (10 items, age-specific): motor, language, social, and cognitive indicators.
• Emotional/Behavioral: Baby Pediatric Symptom Checklist (BPSC, 0–18 m) or Preschool Pediatric Symptom Checklist (PPSC, 18–60 m).
• Autism risk: Parent’s Observations of Social Interactions (POSI, 16–35 m).
• Family context & parent concerns: brief questions on environmental factors and caregiver concerns.

How to respond / Requirements

• Completed by a caregiver who knows the child well (e.g., parent, grandparent). Typical completion time is about 10–15 minutes.
• Age-specific form is required at each well-child visit; forms are available in multiple languages and are scored from a simple hand guide or Excel calculator.
• Scoring/interpretation should be performed by trained professionals within the care team; results inform discussion and follow-up, and become part of the medical record.

Required inputs

• Child’s chronological age (and corrected age if premature) to choose the appropriate age-specific form.
• Caregiver responses to Milestones (10 items), BPSC/PPSC as appropriate, POSI when indicated (16–35 m), and family context items.
• Optional: use the SWYC Form Selector & Milestones Calculator to select form and compare scores to thresholds.

Age windows

SWYC forms are aligned to the pediatric periodicity schedule. Common checkpoints include:

• 2, 4, 6, 9, 12, 15, 18, 24, 30, 36, 48, and 60 months (with defined acceptable day ranges for each window).
• Note: 2- and 60-month forms have limited validation for total scores; useful for surveillance, interpret with caution.

Output and interpretation

• Milestones: 10 items scored 0=Not yet, 1=Somewhat, 2=Very much. Sum to total; compare against age-specific thresholds (except 2 and 60 m).
• BPSC/PPSC: symptom scales with published cutoffs that flag risk for behavioral concerns.
• POSI (16–35 m): autism-specific screener producing a positive/negative risk flag.
• Results guide whether to reassure, monitor and rescreen, or refer for diagnostic evaluation/intervention.

Evidence and validation

• Recognized by the American Academy of Pediatrics among validated parent-completed screening tools for developmental, behavioral, and autism risk screening.
• Milestones validity: initial data show sensitivity ≈ 0.81 and specificity ≈ 0.76 vs. ASQ-3; for prior parent-reported diagnoses, sensitivity ≈ 0.78 and specificity ≈ 0.73.
• Freely available, widely disseminated; ongoing research, multiple translations, and electronic integrations.

Clinical considerations and limitations

• Use age-corrected forms for prematurity; ensure the correct language version and caregiver comprehension.
• Discuss results with families using a trauma-informed, strengths-based approach; the tool is for screening, not diagnosis.
• For 2- and 60-month forms, treat totals as surveillance signals; supplement with clinical judgment or alternative screens if needed.
• Avoid modifying items/scales; use official forms and scoring to preserve validity.

Practical integration

• Provide SWYC at every well-child visit ≤60 months. Front-desk or nursing staff can distribute and collect forms, then route to clinicians for scoring and interpretation.
• Use the Excel Form Selector & Milestones Calculator to automate age selection and thresholds; store results in the EHR and track change over time.
• When positive/at-risk: counsel, offer developmental guidance, schedule earlier rescreen, and/or refer to Early Intervention, developmental-behavioral pediatrics, or mental health services.

Version and sources

Version: current (TEAM UP Scaling & Sustainability Center, Boston Medical Center). Originally developed at Tufts Medical Center by Ellen Perrin, MD, and Chris Sheldrick, PhD.

Primary sources and key references:

1. TEAM UP – SWYC official site: overview, forms, scoring guides, translations, and calculator.
2. Age-Specific SWYC Forms and Milestones (periodicity and scoring guidance).
3. Parts of the SWYC: Milestones, BPSC, PPSC, POSI, family context, parent concerns.
4. Comparison of Literacy and Developmental Screening of Preschool-Aged Children During Primary Care.
5. Legacy SWYC resources: manuals and calculators.