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.
Scatterplot showing the strength of the correlation between sleep time spent snoring and the respiratory disturbance index. Spearman correlation (rho 0.5, P < 0.001) for the association between the amount of the night spent snoring and the major index of sleep apnea severity, the respiratory disturbance index, shows that although these are correlated phenomena they do not completely overlap. The second worst snorer, for instance, also had no sleep apnea.
