Fig. 1
From: Association between weekend catch-up sleep and depression in US adults
Flowchart of the sample selection from NHANES 2017鈥�2020
Initially, 15,560 participants were enrolled. After excluding those under 20 years old (n鈥�=鈥�6,328), with missing WCS data (n鈥�=鈥�122), or PHQ-9 scores (n鈥�=鈥�1,315), a total of 7,795 participants were included in the final analysis