HIF1A and sleep apnea syndrome: There was an increase in HIF1α staining in women with SDB which was reduced to control levels in women who used PAP (Control Median 8.6 (IQR 4.0-10.6) vs SDB 10.8 (6.8-13.0) vs PAP 4.4 (1.3-5.8), p=0.03).