Journal of Cytology
Home About us Ahead of print Instructions Submission Subscribe Advertise Contact e-Alerts Login 
Users Online:191
  Print this page  Email this page Small font sizeDefault font sizeIncrease font size
ORIGINAL ARTICLE
Year : 1999  |  Volume : 16  |  Issue : 2  |  Page : 75-83

Observer perception variability in bronchial brush cytology - A statistical analysis


1 Associate Professor, Department of Tuberculosis and Chest Diseases, King George's Medical College, Lucknow - 226 003, (U.P.), India
2 Ex-President, Department of Tuberculosis and Chest Diseases, King George's Medical College, Lucknow - 226 003, (U.P.), India
3 Research Associate, Department of Tuberculosis and Chest Diseases, King George's Medical College, Lucknow - 226 003, (U.P.), India
4 Retired Professor & Head ,Department of Tuberculosis and Chest Diseases, King George's Medical College, Lucknow - 226 003, (U.P.), India
5 Retired Professor, Department of Tuberculosis and Chest Diseases, King George's Medical College, Lucknow - 226 003, (U.P.), India
6 Associate Professor, Department of Pathology, Department of Tuberculosis and Chest Diseases, King George's Medical College, Lucknow - 226 003, (U.P.), India
7 Associate Professor & Head, Department of Tuberculosis and Chest Diseases, King George's Medical College, Lucknow - 226 003, (U.P.), India

Correspondence Address:
M M Goel
Associate Professor, Department of Pathology, King George's Medical College, Lucknow, (U.P.)
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


Rights and PermissionsRights and Permissions

The object of the present study is to find out the observer perception variability in cytology reporting of bronchial brush (BB) smears from patients subjected to fiberoptic bronchoscopy with a mass lesion in the lung. Bronchial brush smears of 71 patients, clinically presenting as mass lesion in the lower respiratory tract were examined by five pathologists twice atan interval of six weeks; the experience of the pathologists ranged from three years to 25 years. The data collected from all the observers in both sets of observations was subjected to calculation of diagnostic indices and Kappa statistics. The diagnostic indices were calculated separately for each observer in two categories; indices for correct diagnosis of malignancy by brush cytology without including the suspicious group in "positive for malignant group" (2 category) and including suspicious cases in the "positive for malignant group" (3 category). Kappa statistics showed excellent agreement in first set of observations (values 0.54-0.74 in three category and 0.69-0.82 in two category diagnosis) and a constistent increase of above values in second set of observations after six weeks i.e. 0.64-0.84 and 0.82-0.91 respectively in three and two category diagnosis. Therefore Kappa statistics is excellent to study observer perception variability for nominal categories. However, it requires discrete application of Kappa in individual instances because it does not indicate the direction of agreement


[PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed146    
    Printed3    
    Emailed0    
    PDF Downloaded2    
    Comments [Add]    

Recommend this journal