The Monday peak in the onset of ischemic stroke is independent of major risk factors

[...]not all patients with stroke presenting to the emergency department (ED) show elevated blood pressure levels [7], and the diagnosis of hypertension at the ED requires 60 to 80 minutes to best discriminate between hypertensive and normotensive subjects [8]. [...]although many patients hospitalized with ischemic stroke or transient ischemic attack (TIA) show low-density lipoprotein cholesterol (LDL-c) higher than recommended by national guidelines [9], in a unselected cohort of patients who arrived to the hospital within 24 hours of stroke onset, higher cholesterol levels were associated with less severe strokes [10].