Predictive utility of blood pressure, waist circumference and body mass index for metabolic syndrome in patients with schizophrenia in Singapore

Early Interv Psychiatry. 2013 May;7(2):205-9. doi: 10.1111/j.1751-7893.2012.00384.x. Epub 2012 Jul 3.

Abstract

Aims: This study aims to examine and compare the predictive utility of blood pressure (BP), waist circumference (WC) and body mass index (BMI), and to determine optimal cut-off values in prediction of metabolic syndrome (MetS) in patients with chronic schizophrenia.

Methods: About 100 patients with chronic schizophrenia were recruited. BMI and BP were measured and laboratory tests to evaluate patients' high-density lipoprotein cholesterol, triglycerides and glucose levels were performed. Presence of MetS was examined according to AHA/NHLBI guidelines. Predictive utility of BP, WC and BMI was examined using receiver operating curve and discriminant indices were determined accordingly.

Results: Forty-six (46%) patients were identified to have MetS. BMI of ≥23 kg m(-2) was most accurate (AUC = 0.83, P < 0.001), with sensitivity of 93.5%, specificity of 48.1%, positive predictive value of 60.6% and negative predictive value of 92.9% in identifying MetS.

Conclusion: This finding has immediate and significant clinical implications in the local population with schizophrenia.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Blood Glucose
  • Blood Pressure / physiology*
  • Body Mass Index*
  • Cholesterol, HDL / blood
  • Female
  • Humans
  • Male
  • Metabolic Syndrome / blood
  • Metabolic Syndrome / complications
  • Metabolic Syndrome / diagnosis*
  • Metabolic Syndrome / physiopathology
  • Middle Aged
  • Predictive Value of Tests*
  • ROC Curve
  • Schizophrenia / blood
  • Schizophrenia / complications
  • Schizophrenia / physiopathology*
  • Sensitivity and Specificity
  • Singapore
  • Triglycerides / blood
  • Waist Circumference / physiology*

Substances

  • Blood Glucose
  • Cholesterol, HDL
  • Triglycerides