Abstract
OBJECTIVE: To know the evolution of Attention Deficit Hyperactivity Disorder (ADHD) in adolescence. METHODOLOGY: Longitudinal study with the data from 50 medical records from patients in follow-up for at least two years. For the statistical analysis we calculated using the Fischers exact, chi-square, and Kruskal-Wallis tests, by the R Core Team 2018 software. RESULTS: Of the 50 patients, 80% were male, with an average age of 14.0 years (range 10 to 17 years), 26 (52%) were in initial follow-up with a neurologist for ADHD, the others with com- plaints compatible with ADHD. The mean age of onset symptoms was 8.0 years (range, 5 to 13 years) and age at diagnosis 8.5 years (range, 5 to 13 years). Methylphenidate use occurred in 30 (60%), 48% maintained treatment adherence, and 18% reported no improvement with methylphenidate, with no intention to use another medication. There was an improvement in the group (p < 0.05), and the contributing factors were: acquisition of a study routine, improved be-havior at school, more assertive school, more assertive family, fewer daily hours on screens. CONCLUSION: ADHD involves family, school, and health. The control of the symptoms and best results at school need a study routine, improving behavior, an inclusive school (which sees the difficulties of its students as a challenge), family support, and fewer hours on screens. We emphasize the importance of health professionals in the diagnosis and clinical follow-up.