title: A cross-sectional survey on the prevalence of anxiety symptoms in Chinese patients with premature ventricular contractions without structural heart disease.
abstract: BACKGROUND
  Anxiety appears to be more common in patients with coronary artery disease (CHD) than in the general population, and anxiety symptoms may precede onset of CHD and play an important role in development of CHD. Little is known about the prevalence of anxiety symptoms in Chinese patients with premature ventricular contractions (PVCs). Our objective was to study anxiety symptoms and potential risk factors in a Chinese population with PVCs but without structural heart disease.
  
  
  METHODS
  The Zung self-rating anxiety scale (ZSAS) was used to assess anxiety symptoms. Correlation between anxiety symptoms and socio-demographics and medical factors were analyzed by Logistic regression.
  
  
  RESULTS
  Of 1144 patients with PVCs (487 males and 657 females), age (53 ± 23) years old, disease duration 1 month to 24 years, a total of 381 (33.3%) patients were categorized as having anxiety symptoms. Anxiety symptoms increased with age, low income, low education level, nationality, PVC count/24 hours, bad social support, village settlement type (P < 0.05). Multivariate Logistic regression indicated that six variables-education level, ethnic minorities, dwelling place, age, PVC count/24 hours, and social support-significantly and independently related with anxiety symptoms (P < 0.05).
  
  
  CONCLUSIONS
  In the Chinese population, anxiety symptoms in subjects with PVCs were frequent. Education level, ethnic minorities, dwelling place, age, PVC count/24 hours, and social support were independent risk factors for anxiety symptoms. Further research on the relationship between PVCs and anxiety symptoms in China is necessary.
authors.affiliation: Department of Cardiology, Renmin Hospital of Wuhan University, Cardiovascular Research Institute of Wuhan University, Wuhan, Hubei 430060, China.
authors.forename: Jin-Jun
authors.initials: JJ
authors.lastname: Liang
authors.forename: He
authors.initials: H
authors.lastname: Huang
authors.forename: Bo
authors.initials: B
authors.lastname: Yang
authors.forename: Jun
authors.initials: J
authors.lastname: Wan
authors.forename: Yan-Hong
authors.initials: YH
authors.lastname: Tang
authors.forename: Ming-Wei
authors.initials: MW
authors.lastname: Bao
authors.forename: Qin-Yan
authors.initials: QY
authors.lastname: Zhao
authors.forename: Gang
authors.initials: G
authors.lastname: Wu
authors.forename: Cong-Xin
authors.initials: CX
authors.lastname: Huang
mesh_terms: D000328:Adult; D000368:Aged; D001007:Anxiety / Q000453:epidemiology*; D044466:Asian People; D003430:Cross-Sectional Studies; D005260:Female; D006331:Heart Diseases / Q000523:psychology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D018879:Ventricular Premature Complexes / Q000523:psychology*