In adolescents, the IDEA-RS Calculator can be used to estimate the percent probability of developing depression at 18 years of age. 

 

The IDEA-RS was designed by the Identifying Depression Early in Adolescence (IDEA) Consortium, an international project established in 2017 by a multidisciplinary team of investigators who set out to advance research on the early detection as well as prevention of depression. The score was originally developed in a sample of 15-year-old adolescents in Brazil to predict depression at age 18, and showed good discriminative performance to parse individuals at high- and at low-risk of having depression at age 18. External validation indicated that the IDEA-RS was also able to predict the occurrence of depression in samples from other countries and continents. 

 

IDEA-RS is easy to apply because it comprises only sociodemographic variables that can be obtained directly from the adolescent: biological sex, skin color, drug use, school failure, social isolation, fight involvement, relationship with mother, relationship with father, relationship between parents, childhood maltreatment, and ran away from home.