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.
Adjusted progesterone levels in women with and without obstructive sleep apnea, stratified by trimester of pregnancy. The gestational age and weight-corrected progesterone levels, expressed as MoM, are shown on the vertical axis. Samples associated with women diagnosed with sleep apnea are shown as filled circles while levels in control women are shown as open circles. The left side shows levels in the first trimester, while the right side shows levels in the second trimester.
