Prevalence of Raynaud's phenomenon in healthy Turkish medical students and hospital personnel.

In this study, we investigated the frequency of Raynaud's phenomenon (RP) in medical students and hospital personnel and determined associated factors. Students and hospital personnel of our medical faculty (1,414 subjects; 838 females, 576 males, mean age, 27.2+/-6.6) were questioned for symptoms associated with RP, and the presence of smoking and headache. 530 subjects (37.5%) defined color changes on cold exposure. 51 subjects (3.6%) had biphasic or triphasic color changes (definite RP). The prevalence of definite RP in females (4.8%) was significantly higher than in males (1.9%) (P=0.005). The frequency of smoking subjects (45.1 vs. 28.8%) was significantly higher in patients with RP (P=0.009). There was numbness and/or paresthesia in 174 subjects (12.3%) who defined uniphasic color change on cold exposure (possible RP). Female sex and being a smoker were factors associated with RP in our study.