Home | About us | Editorial Board | Search | Ahead of print | Current Issue | Archives | Instructions | Online submissionContact Us   |  Subscribe   |  Advertise   |  Login  Page layout
Wide layoutNarrow layoutFull screen layout
Lung India Official publication of Indian Chest Society  
  Users Online: 3011   Home Print this page  Email this page Small font size Default font size Increase font size


 
  Table of Contents    
LETTER TO EDITOR
Year : 2014  |  Volume : 31  |  Issue : 3  |  Page : 314-315  

Planning in case control studies: A comment on the relationship between lung function and indoor air pollution among rural women in the Niger Delta region of Nigeria


Department of Community Medicine, Indira Gandhi Medical College, Shimla, Himachal Pradesh, India

Date of Web Publication1-Jul-2014

Correspondence Address:
Kanica Kaushal
Department of Community Medicine, Indira Gandhi Medical College, Shimla, Himachal Pradesh
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-2113.135806

Rights and Permissions

How to cite this article:
Kaushal K. Planning in case control studies: A comment on the relationship between lung function and indoor air pollution among rural women in the Niger Delta region of Nigeria. Lung India 2014;31:314-5

How to cite this URL:
Kaushal K. Planning in case control studies: A comment on the relationship between lung function and indoor air pollution among rural women in the Niger Delta region of Nigeria. Lung India [serial online] 2014 [cited 2019 Nov 17];31:314-5. Available from: http://www.lungindia.com/text.asp?2014/31/3/314/135806

Sir,

This is in reference to the article, "The relationship between lung function and indoor air pollution among rural women in the Niger Delta region of Nigeria" published in Lung India 2014;31:110-5.

The authors have done a commendable task to evaluate the association between the long-term biomass smoke exposure and lung function among the women who smoke fish in the Niger Delta region of Nigeria. For this survey, the authors conducted a case control study (Material and methods) with 342 women engaged in smoking of fish as cases and 346 women from the same community who were mainly engaged in fishing but were not involved in smoking of fish as controls. [1]

However I have a few concerns regarding this study.

As this is a case control study, the authors should have matched for the confounding variables which can affect the outcome of the study. The authors have mentioned that fish smoking process is usually carried out in indoors in drying huts and have explained the condition of these dry huts where the cases used to work. However the authors have not matched the cases with controls on the account of the condition of the homes of all those women who were taken as controls.

Housing, being a part of the total environment of man, is responsible for the status of man's health and well being. A strong relationship can be established between the poor housing and the respiratory infections such as bronchitis. [2]

The authors should have matched for the indoor environmental factors also e.g. the building material used in the roof and walls, ventilation; combustion equipment used at home, any coal combustion, any aerosol sprays being used etc. The indoor environment in any building is a result of the interaction between the site, climate, building system, construction techniques, contaminant sources and building occupants. [3]

 
   References Top

1.Umoh VA, Peters E. The relationship between lung function and indoor air pollution among rural women in the Niger Delta region of Nigeria. Lung India 2014;31:110-5.  Back to cited text no. 1
[PUBMED]  Medknow Journal  
2.Park K. Housing and health. In: Park K, editor. Park′s Textbook of Preventive and Social Medicine 21 st ed. Banarsidas Bhanot Publishers; 2011. p. 693.  Back to cited text no. 2
    
3.Factors Affecting Indoor Air Quality. Available from: http://www.cdc.gov/niosh/pdfs/sec_2.pdf. [Last accessed on 2014 Apr 03].  Back to cited text no. 3
    




 

Top
  
 
  Search
 
  
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
    Access Statistics
    Email Alert *
    Add to My List *
* Registration required (free)  

 
  In this article
    References

 Article Access Statistics
    Viewed529    
    Printed3    
    Emailed0    
    PDF Downloaded163    
    Comments [Add]    

Recommend this journal