Welcome to CALIPER

The Canadian Laboratory Initiative on Pediatric Reference Intervals ( CALIPER ) is a nation-wide health initiative to improve the diagnosis and monitoring of children and adolescents with medical concerns. Our main objective is to establish a comprehensive database of reference intervals for blood test results in children and adolescents. CALIPER is designed to fill the gaps that currently exist in accurately interpreting blood test results with the ultimate goal of improving the care of children at SickKids and other children’s hospitals around the world. Since 2009, we have made great progress , including:

Recruited 14,000+ healthy children and adolescents from schools and other community centres Established paediatric reference intervals for 200+ laboratory biomarkers of health and disease Published 90 + peer-reviewed papers in high-impact journals to share methods and data worldwide Created an online database and mobile application for free access to CALIPER reference intervals

CALIPER would not be possible with out the colla boration of community partnerships as well as our participants, volunteers, and staff . Thank you!

CALIPER Database

We’ve established a comprehensive database of age- and sex-specific reference intervals for over 200 tests of health and disease, including biochemical, immunological, hematological, nutritional, endocrine, and fertility markers, as well as many special chemistry evaluations, based on data from thousands of healthy children and teens from birth to 18 years old. This database is free for use by all healthcare professionals, laboratory professionals, as well as families and children.