Validity of physicians' self-reports of cardiovascular disease risk factors

Michael J. Klag, Jiang He, Lucy A. Mead, Daniel E. Ford, Thomas A. Pearson, David M. Levine

Research output: Contribution to journalArticlepeer-review

Abstract

To determine the accuracy of self-reported risk factors in 78 physicians, self-reported information was compared to findings on a standardized examination. Measured weight (r = 0.98), height (r = 0.95), body mass index (r = 0.96), systolic blood pressure (SBP) (r = 0.72), and diastolic blood pressure (DBP) (r = 0.60) were highly correlated with self-reported values (all P < 0.0001). Mean self-reported SBP and DBP did not differ from measured values and measured weight was 1.5 kg greater and measured height 1.4 cm less than self-reported values (both p < 0.0001). Regression of measured on self-reported values indicated excellent agreement except for DBP and heart rate. Differences between measured and self-reported values were not associated with a variety of variables except for a greater difference in SBP at higher levels of SBP. None of the 60 self-reported nonsmokers had expired carbon monoxide levels greater than 10 ppm. These results indicate that physicians'self-reports of height, body mass index, SBP, and smoking are extremely accurate and suitable for research purposes.

Original languageEnglish (US)
Pages (from-to)442-447
Number of pages6
JournalAnnals of epidemiology
Volume3
Issue number4
DOIs
StatePublished - Jul 1993

Keywords

  • Validity
  • blood pressure
  • body weight
  • physicians
  • self-reports

ASJC Scopus subject areas

  • Epidemiology

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