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.
Effect modification of sex and sleep duration in the multivariable generalized additive model 5 when the response variable was the metabolic syndrome severity score. (a) EDF was 3.43 (p = 0.00002) in the female model (upper plot), (b) EDF was 1.76 (p = 0.04) in the male model (lower plot).
