Indian Journal of Dermatology
  Publication of IADVL, WB
  Official organ of AADV
Indexed with Science Citation Index (E) , Web of Science and PubMed
 
Users online: 3104  
Home About  Editorial Board  Current Issue Archives Online Early Coming Soon Guidelines Subscriptions  e-Alerts    Login  
    Small font sizeDefault font sizeIncrease font size Print this page Email this page


 
Table of Contents 
CORRESPONDENCE
Year : 2013  |  Volume : 58  |  Issue : 4  |  Page : 316
Authors' reply


Department of Dermatology, Sri Ramachandra University, Chennai, India

Date of Web Publication25-Jun-2013

Correspondence Address:
Shraddha Madanagobalane
Department of Dermatology, Sri Ramachandra University, Chennai
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-5154.113963

Rights and Permissions



How to cite this article:
Madanagobalane S, Anandan S. Authors' reply. Indian J Dermatol 2013;58:316

How to cite this URL:
Madanagobalane S, Anandan S. Authors' reply. Indian J Dermatol [serial online] 2013 [cited 2019 Aug 21];58:316. Available from: http://www.e-ijd.org/text.asp?2013/58/4/316/113963


Sir,

We thank you for the query regarding our recent article titled "Prevalence of metabolic syndrome in south Indian patients with psoriasis vulgaris and the relation between disease severity and metabolic syndrome: A hospital-based case-control study." [1] The authors have stated the definitions of study designs from the "Park's Textbook of Social and Preventive Medicine" and "A Practical Approach to PG Dissertation." [2],[3],[4] However, in epidemiological studies there are no rigid barriers and the references quoted by the author are only an insight into these terms for easy understanding of beginners.

They have classified longitudinal studies into case-control (retrospective) and cohort (prospective). Such rigid classification systems are not applicable in research practice. A case-control study design is not limited to a retrospective nature as suggested in the query. A case-control study design can be used in a prospective manner (i.e., for following up patients), for example, we can choose to prospectively follow up patients with and without a condition of interest for a period of time, to observe whether the condition under study is being observed. [5]

This paper is part of a long-term prospective study in which patients are still being followed up. The readers might have been misled by the use of the word "prospective" in the study design section. To place things in the right perspective, we would like to add a sentence in the study design section explaining that the results of this article pertain only to the baseline results of the prospective study.

A case-control study is "an observational epidemiological study of persons with the disease of interest and a suitable control group of persons without the disease." The potential relationship of a suspected risk factor or an attribute to the disease is examined by comparing the diseased and non-diseased subjects with regard to how frequently the factor or attribute is present in each of the groups (diseased and non-diseased)." [5] A case-control study can also determine prevalence (prevalence case-control study), which was the case in our study. [5]

Our title, "Prevalence of metabolic syndrome in south Indian patients with psoriasis vulgaris and the relation between disease severity and metabolic syndrome: A hospital-based case-control study," means that a cross-sectional survey was performed but this is still a case-control study and our title appropriately reflects the research question, the study design, and the population that was studied.

 
   References Top

1.Madanagobalane S, Anandan S. Prevalence of metabolic syndrome in south Indian patients with psoriasis vulgaris and the relation between disease severity and metabolic syndrome: A hospital-based case-control study. Indian J Dermatol 2012;57:353-7.  Back to cited text no. 1
[PUBMED]  Medknow Journal  
2.Thappa DM, Gupta G. Prevalence of metabolic syndrome in south indian patients with psoriasis vulgaris and the relation between disease severity and metabolic syndrome: A hospital-based case-control study or cross?sectional study? Indian J Dermatol 2013;58:315.  Back to cited text no. 2
    
3.Raveendran R, Gitanjali B, Manikandan S. A practical approach to PG dissertation. New Delhi: Jaypee Brothers Medical Publishers Ltd; 2005.  Back to cited text no. 3
    
4.Park K. Textbook of preventive and social medicine. 21 st ed. Jabalpur: Banarsidas Bhanot Publishers; 2011.  Back to cited text no. 4
    
5.Hennekens CH, Buring JE. Epidemiology in medicine. 1 st ed. USA: Lippincott Williams and Wilkins; 1987.  Back to cited text no. 5
    




 

Top
Print this article  Email this article
 
 
  Search
 
  
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
    Article in PDF (314 KB)
    Citation Manager
    Access Statistics
    Reader Comments
    Email Alert *
    Add to My List *
* Registration required (free)  


    References

 Article Access Statistics
    Viewed1107    
    Printed19    
    Emailed0    
    PDF Downloaded37    
    Comments [Add]    

Recommend this journal