Hospitalizations of children and adolescents with complex chronic conditions in Brazil: a temporal analysis from 2009...

Access to advanced and sophisticated health technologies made it possible to increase the survival of children with complex chronic conditions. Thus, the profile of pediatric patients admitted to hospitals has changed in recent decades. In Brazil, there are few epidemiological studies on this subject. This study aims to evaluate the main characteristics and temporal trend of hospital admissions of children and adolescents with complex chronic conditions in Brazil, 2009-2020. This is a cross-sectional study with data on hospitalizations of children and adolescents with complex chronic conditions, extracted from the Hospital Information System of the Unified Health System, 2009-2020, in the 26 Brazilian states and the Federal District. The analysis included descriptive statistics and a generalized linear model. From 2009 to 2020, there were 1,337,120 hospitalizations of children and adolescents with complex chronic conditions, and of these, 735,820 (55.0%) were male. The percentage of hospital deaths during the analyzed period was 4.0%. The most recurrent diagnostic category was malignancy (41.0%), with an annual incidence increase of 2.61 (95% CI: 1.16-4.05). Between 2009 and 2019, the increase in hospitalizations for complex chronic conditions was 27.4% for boys and 25.2% for girls, and the reductions in the number of hospitalizations for other causes were 15.4% and 11.9% for boys and girls, respectively.  Conclusions: Hospitalizations for complex chronic conditions in pediatrics are increasing in Brazil. This increase is a new challenge for the Brazilian public health system. What is Known: • The profile of pediatric patients admitted to hospitals has changed in recent decades, with a reduction in the total number of hospitalizations, but with an increase in the complexity and costs of these hospitalizations. • The world's scientific production on CCC is concentrated in the United States health care system. Epidemiological studies on the topic in universal health care systems are scarce. What is New: • This is the first study that evaluated the temporal trend of hospitalizations of children and adolescents with CCC in Brazil. • Hospitalizations for CCC in pediatrics are increasing in Brazil, with emphasis on the condition of malignancy, higher incidence in males and in children under one year of age. Furthermore, our study found a decrease in hospitalizations for other pediatric causes.