Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Parent-reported difficulties maintaining sleep from term t1 to term t3 (n = 832).
→Number of cases in which sleep pattern did not change
↘Number of cases in which sleep pattern changed for the positive
↗Number of cases in which sleep pattern changed for the negative
