ct {bamdit} | R Documentation |
Diagnosis of appendicities with computer tomography scans
Description
This data frame corresponds to 51 clinical studies reporting the accuracy of computer tomography (CT) scans for the diagnosis of appendicities.
Format
A matrix with 51 rows and 17 columns. Each row represents study results, the columns are:
- tp
number of true positives.
- n1
number of patients with disease.
- fp
number of false positives.
- n2
number of patients without disease.
- Author
First author and year.
- country
Country: EU = 1, others/USA = 2.
- hosp
Type of hospital: 1 = university, 2 = others.
- inclus
Inclusion criteria: 1 = Suspected, 2 = appendectomy.
- indfind
Other CT findings included: 1 = no, 2 = yes.
- design
Study design: 1 = prospective, 2 = retrospective.
- contr
Contrast medium: 1 = no, 2 = yes.
- localis
Localisation: 1 = one area, 2 = more than one area.
- child
Children included: 1 = no, 2 = yes.
- fup.na
Followup: 0 = no, 1 = yes.
- refer.na
Valid reference: 0 = no, 1 = yes.
- sample.na
Sample: 0 = selected, 1= consecutive/random.
- gender.na
Gender, female: 0 = less than 50%; 1 = more than 50%.
Details
This data frame corresponds to 51 clinical studies reporting the accuracy of computer tomography (CT) scans for the diagnosis of appendicities.
Source
The data were obtainded from
Ohmann C, Verde PE, Gilbers T, Franke C, Fuerst G, Sauerland S, Boehner H. (2006) Systematic review of CT investigation in suspected acute appendicitis. Final Report; Coordination Centre for Clinical Trials, Heinrich-Heine University. Moorenstr. 5, D-40225 Duesseldorf Germany.
References
Verde P. E. (2010). Meta-analysis of diagnostic test data: A bivariate Bayesian modeling approach. Statistics in Medicine. 29, 3088-3102.