title: Comparison of clinical prediction scores for the diagnosis of deep vein thrombosis in unselected population of outpatients and inpatients.
abstract: OBJECTIVE
  The aim of this research was to compare the accuracy of the modified Wells, the Wells, the Kahn, the St. André, and the Constans score for the diagnosis of deep vein thrombosis of the lower limb in unselected population of outpatients and inpatients.
  
  
  METHODS
  The pretest of probability score was employed in consecutive 500 outpatients and inpatients with suspicion of deep vein thrombosis. All patients were examined with compression ultrasonography.
  
  
  RESULTS
  Deep vein thrombosis was confirmed in 26.4%. In the unselected population of outpatients and inpatients, the accuracy of the modified Wells score and the Constans score was higher than other scores. Both scores were more accurate for the outpatients. There was no accurate score for the inpatient subgroup.
  
  
  CONCLUSIONS
  The modified Wells and the Constans score appear to be useful in the unselected population of outpatients and inpatients and particularly in the outpatient subgroup.
authors: Division of Vascular Surgery, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand nuttawut@gmail.com.
authors: N
authors: N
authors: Sermsathanasawadi
authors: Division of Vascular Surgery, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
authors: P
authors: P
authors: Suparatchatpun
authors: Division of Vascular Surgery, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
authors: T
authors: T
authors: Pumpuang
authors: Division of Vascular Surgery, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
authors: K
authors: K
authors: Hongku
authors: Division of Vascular Surgery, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
authors: K
authors: K
authors: Chinsakchai
authors: Division of Vascular Surgery, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
authors: C
authors: C
authors: Wongwanit
authors: Division of Vascular Surgery, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
authors: C
authors: C
authors: Ruangsetakit
authors: Division of Vascular Surgery, Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
authors: P
authors: P
authors: Mutirangura
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D035002:Lower Extremity / Q000098:blood supply* / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D018616:Ultrasonography, Doppler, Duplex; D020246:Venous Thrombosis / Q000000981:diagnostic imaging* / Q000453:epidemiology
keywords: Deep vein thrombosis; clinical prediction score; duplex ultrasound