Use your browser's BACK button to return to your page of origin.
A GEE approach to estimating sensitivity and specificity
and coverage properties of the confidence intervals.
Statistics in Medicine 2001;20(9-10):1529-1539.
Sternberg MR, Hadgu A.
Abstract
A generalized estimating equation (GEE) approach is used to estimate the sensitivity
and specificity of five non-culture screening tests for detecting Chlamydia
trachomatis in endocervical specimens from women attending family planning
clinics. Since the estimates of these parameters can be very close to the
upper limit of one, confidence interval construction based on the traditional
approaches, such as the delta method or a back-transformation approach, may
not have the stated coverage. We compare different approaches to calculating
confidence intervals for the sensitivity and specificity from the results
of the GEE approach. These methods include the delta method, a back-transformation
approach, and a bootstrap approach. In addition, we use simulations to investigate
the estimated coverage rates of the delta method and the back-transformation
approach. Published in 2001 by John Wiley & Sons, Ltd.