Add OSA to list of VTE risk factors

In this large cohort of >10,000 patients, although the overall risk of VTE in those with sleep apnea was low (0.5% at 3.5 year follow up), it was significantly higher compared to matched controls (0.2%, hazard ratio ~3) which is even higher in those with sleep apnea on CPAP (hazard ratio ~9). Sleep apnea should be factored into risk prediction of VTE (abstract)