Estimating the sensitivity of a screening test.

نویسنده

  • N E Day
چکیده

A commonly used estimate of a screening test's sensitivity, based on the prevalence at screening and the incidence of interval cancers, is shown to be logically unsound and quantitatively poor. An alternative simple estimate is proposed, based only on incidence rates.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Evaluation of Students' Vision Screening Test by School Nurse

ABSTRACT Health screening in student, such as Visual screening test usually carry out by school nurses in many rural schools in Iran. While students are in the growth age, visual acuity may be affected by growth. A Study was carried out to evaluate vision screening test on students in Hamadan, Iran. A sample of 878 pupils examined by a school nurse using E- Chart. According to the test, chil...

متن کامل

Estimating average glandular dose in routine mammography screening using neural network

Given the extensive use of common mammography tests for screening and diagnosis of breast cancer, there are concerns over the increased dose absorbed by the patient due to the sensitivity of the breast tissue. Thus, knowing the Mean Glandular Dose (MGD) before radiation to the patient through its estimation can be helpful. For this reason, the MultiLayer Perceptron (MLP) neural network model wa...

متن کامل

The Sensitivity, Specificity and Predictive Values of Snellen Chart Compared to the Diagnostic Test in Amblyopia Screening Program in Iran

Introduction Amblyopia is a leading cause of visual impairment in both childhood and adult populations. Our aim in this study was to assess the epidemiological characteristics of the amblyopia screening program in Iran. Materials and Methods A cross-sectional study was done on a randomly selected sample of 4,636 Iranian children who were referred to screening program in 2013 were participated i...

متن کامل

Evaluation of Different Risk Factors for Early Diagnosis of Diabetes Mellitus

Background: The efficacy of various screening variables in detection of diabetes mellitus (DM) is unclear. Objective: To determine the efficacy of various diagnostic tests for type 2 DM. Methods: 1021 inhabitants of Hakimieh district of Tehran aged between 30 and 75 years were studied.  Known cases of diabetes and those with factors influencing glucose tolerance test were excluded.  Age, sex, f...

متن کامل

Comparing some screening values of Pap test and visual inspection with acetic acid in the diagnosis of precancerous cervical lesions (2016-2017)

Background: Visual inspection with acetic acid (VIA) is one of the several methods that can serve as an alternative to the Pap test for diagnosis of precancerous lesions in the cervix. This study aimed to compare the screening value of VIA and Pap test in such diagnosis. Materials and Methods: The population of this descriptive study was 304 women who attended Afzalipour Hospital in Kerman, Ir...

متن کامل

An Easy and Simple Method for Estimating Total Shoot Length During Screening and Evaluation of Mulberry(Morus spp.) Genotypes

In mulberry (Morus sp.), grown for its foliage, which is the sole food for the silkworm (Bombyx mori L.), evolving high yielding varieties is a long drawn and laborious process. One of the important selection parameter that has significant positive correlation with leaf yield is Total Shoot Length [TSL] of the mulberry plant. Measuring the length of all the shoots of the test genotypes to get t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Journal of epidemiology and community health

دوره 39 4  شماره 

صفحات  -

تاریخ انتشار 1985