Sleep duration and compliance with sleep recommendations among Brazilian children and adolescents: an updated systematic review and meta-analysis
Gabriel Pereira Maciel, Ricardo de Camargo, Maria Beatriz Vieira de Brito, Gabrielli Thais de Mello, Valter Cordeiro Barbosa Filho, Kelly Samara Silva · 2026
Read Sleep duration and compliance with sleep recommendations among Brazilian children and adolescents: an updated systematic review and meta-analysis by Gabriel Pereira Maciel, Ricardo de Camargo, Maria Beatriz Vieira de Brito, Gabrielli Thais de Mello, Valter Cordeiro Barbosa Filho, Kelly Samara Silva (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13597199.txt.
Description
How long children sleep, and whether that meets health guidance, varies widely across studies. Gabriel Pereira Maciel and five co-authors pooled the Brazilian evidence in 2026, updating an earlier review. They gathered eighty-four studies with more than 177,000 children and teens, drawn from eight databases.
On average, forty-five percent of preschoolers slept the advised amount, against sixty-five percent of school age children and forty-seven percent of teens. Mean sleep fell with age, from about ten and a half hours in the youngest group to under eight hours in teens. Surveys gave higher numbers than motion sensors did. The authors ask for shared methods so future counts can be compared with more trust.
Catalog record
| CREATOR | Gabriel Pereira Maciel, Ricardo de Camargo, Maria Beatriz Vieira de Brito, Gabrielli Thais de Mello, Valter Cordeiro Barbosa Filho, Kelly Samara Silva |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 43 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |