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. Author manuscript; available in PMC: 2016 Sep 29.
Published in final edited form as: Psychosom Med. 2013 Jun 20;75(6):537–544. doi: 10.1097/PSY.0b013e31829a0ae3

Figure 1.

Figure 1

Vascular responses subdivided by quartiles of anxiety symptom score (SCL-90-R mean scores for Q1 = 39; Q2 = 45; Q3 = 52; Q4 = 63). Left vertical axis shows forearm resistance vessel (FRV) function as change (%) in forearm blood flow (FBF) in response to the highest dose of each intra-arterial infusion of acetylcholine (30 μg/min), nitroprusside (10 μg/min) and verapamil (100 μg/min). Right vertical axis shows forearm conduit vessel function, as flow-mediated dilatation (FMD) of the brachial artery. FRV function, but not FMD nor nitroglycerin-mediated FMD (NTG), was significantly reduced in participants with elevated anxiety scores.