cad_pvb: SPECT Thallium test data set

In wnarifin/PVBcorrect: Partial verification bias correction for estimates of accuracy measures in diagnostic accuracy studies

SPECT Thallium test data set

Description

Single-photon-emission computed-tomography (SPECT) thallium is a non-invasive diagnostic test used to diagnose coronary artery disease (CAD). SPECT thallium test was performed on 2688 patients. CAD is diagnosed when stenosis exceeds 50% of the artery, as evaluated by coronary angiography (gold standard). Only 471 patients underwent the coronary angiography for verification of the CAD status. The rest of the patients were unverified (82.5%).

Usage

cad_pvb

Format

A data frame with 2688 rows and five variables:

SPECT thallium test, T:

Binary, 1 = Positive, 0 = Negative

CAD, D:

Binary, 1 = Yes, 0 = No

Covariates, X:

1. Gender, X1: Binary, 1 = Male, 0 = Female

2. Stress mode, X2: Binary, 1 = Dipyridamole (Medication for stress test when the patient is unable to exercise), 0 = Exercise

3. Age, X3: Binary, 1 = 60 years and above, 0 = Below 60 years

Source

1. Cecil, M. P., Kosinski, A. S., Jones, M. T., Taylor, A., Alazraki, N. P., Pettigrew, R. I., & Weintraub, W. S. (1996). The importance of work-up (verification) bias correction in assessing the accuracy of SPECT thallium-201 testing for the diagnosis of coronary artery disease. Journal of Clinical Epidemiology, 49(7), 735–742.

2. Kosinski, A. S., & Barnhart, H. X. (2003). Accounting for nonignorable verification bias in assessment of diagnostic tests. Biometrics, 59(1), 163–171.

wnarifin/PVBcorrect documentation built on May 12, 2024, 4:13 p.m.