Positive Predictive Value of a Health History Questionnaire
نویسندگان
چکیده
منابع مشابه
Questionnaire-based diagnosis of hidradenitis suppurativa: specificity, sensitivity and positive predictive value of specific diagnostic questions.
BACKGROUND Estimates of the prevalence of hidradenitis suppurativa (HS) range from 0.33% to 4%. Further epidemiological data are therefore needed. Because of the hidden nature of the disease, physical screening may be cumbersome and questionnaire-based screening may be more appropriate. OBJECTIVES To establish the sensitivity (SE), specificity (SP) and positive predictive value (PPV) of simpl...
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background: tins research was conduced to estimate the positive predictive value of physicians at kerman emergency services for traumatic patients who referred to radiology department of kerman hospital in 2001. methods: this study was a cross-sectional study and carried out on 353 patients. a questionnaire was used as a research instrument. results: three radiologists reported the films separa...
متن کاملMistake in Calculating the Positive Predictive Value
As I read the study by Bakhtiari et al. (1), I noticed that they miscalculated the positive predictive value. They indicated that the positive predictive value of the PCR assay was 100%. But when I placed the values on the table and calculated the positive predictive value of the PCR assay, I found it 83.3%.
متن کاملLetter to Editor: Positive predictive value of diabetes mellitus risk assessment
Diabetes mellitus (DM) is an important public health challenge [1 ].Different studies predicted that the frequency of diabetic patients will be increased to 642 million throughout the world by 2040 [2]. A notable percentage of diabetic patients are not aware of their disease (approximately 30% in Iran) [3]. Lag in the diagnosis of DM raises the expense of controlling disease and makes the progn...
متن کاملThe first positive: computing positive predictive value at the extremes.
Computing the positive predictive value (PPV) of a wellknown test for a relatively common disease is a straight-forward exercise. However, in the case of a new test for a rare disorder; the extreme numbers involved-the very low prevalence of the disorder and the lack of previous false-positive results--make it difficult to compute the PPV. As new genetic tests become available in the next decad...
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ژورنال
عنوان ژورنال: Military Medicine
سال: 2002
ISSN: 0026-4075,1930-613X
DOI: 10.1093/milmed/167.8.639