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LETTER TO EDITOR
Year : 2013  |  Volume : 2  |  Issue : 3  |  Page : 157

Revision of Prasad's social classification and provision of an online tool for real-time updating


Department of Community Medicine, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi, India

Date of Web Publication27-Jun-2013

Correspondence Address:
Rahul Sharma
Department of Community Medicine, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2278-330X.114142

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How to cite this article:
Sharma R. Revision of Prasad's social classification and provision of an online tool for real-time updating. South Asian J Cancer 2013;2:157

How to cite this URL:
Sharma R. Revision of Prasad's social classification and provision of an online tool for real-time updating. South Asian J Cancer [serial online] 2013 [cited 2017 Jun 29];2:157. Available from: http://journal.sajc.org/text.asp?2013/2/3/157/114142

Dear Editor,

The socioeconomic status is widely recognized as one of the important factors affecting health condition of an individual or a family. Several studies done in health-related fields require assessment of the socioeconomic status (SES) of an individual/family and consider it during the data analysis. The Kuppuswamy's scale and Prasad's classification are two of the tools widely used for socioeconomic classification. [1],[2] The relative merits of the two classification schemes have been briefly discussed earlier and an update for Prasad's social classification was given for the year 1993 by Kumar. [3]

Mishra and Singh have pointed out that an income classification usually has relevance only for the period under study. [4] Due to inflation, there is fall in the value of rupee and economic criteria may lose their relevance. A revision of the Kuppuswamy's scale to bring it up-to-date has been made available earlier. [5] An online tool to enable real-time update of the scale is also made available. [6] There is a need for a similar revision of the Prasad's classification [Table 1] too, to maintain its validity of social classification.
Table 1: Prasad's social classification (1961)


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The revised per capita income per month limits have been calculated as follows:

Price index by old base (1960) for the original scale = 100

Price index by new base (1982) for the year 1982 = 100

Linking factor between 1960 and 1982 series = 4.63

Price index by new base (2001) for the year 2001 = 100

Linking factor between 1982 and 2001 series = 4.93

The linking factors have been obtained from the website www.labourbureau.nic.in.

For arriving at the corresponding family income cutoff values for the year 2001,

New income value = (old value × 4.63 × 4.93).

To calculate the values for real-time update, we have to look at the current All-India Average Consumer Price Index Numbers for Industrial Workers (Base 2001 = 100). The value of the index for March 2013 (latest available as of May 2013) is 224. The new values are calculated by further applying a multiplying factor:

Multiplying factor = current index value (=224)/Base index value in 2001 (=100) = 2.24.

The updated values for the per capita monthly income (in Rs./month) for May 2013 are given in [Table 2]. They have been calculated as: New income value = 2.24 × (old value × 4.63 × 4.93).
Table 2: Revision of the Prasad's social classification for the year 2013


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Real-time update of the scale

As inflation is a dynamic ongoing process, there is a risk that the validity of any published update may soon outlive its purpose. An online tool to enable real-time update of the Prasad's social classification has hence been made available. [7] The online tool will retain its validity till the time the base year (2001 at present) for consumer price index for industrial workers (CPI-IW) is next changed.

The current exercise is a step towards increasing the validity of use of classification with relevance to the current price levels and enabling a real-time update for a considerable time in the near future.

 
  References Top

1.Kuppuswamy B. Manual of socioeconomic status (Urban). Delhi: Manasayan, 1981.  Back to cited text no. 1
    
2.Prasad BG. Social classification of Indian families. J Indian Med Assoc 1961;37:250-1.  Back to cited text no. 2
    
3.Kumar P. Social classification-need for constant updating. Indian J Community Med 1993;18:60-1.  Back to cited text no. 3
  Medknow Journal  
4.Mishra D, Singh HP. Kuppuswamy's socioeconomic status scale: A revision. Indian J Pediatr 2003;70:273-4.  Back to cited text no. 4
    
5.Sharma R. Kuppuswamy's socioeconomic status scale-revision for 2011 and formula for real-time updating. Indian J Pediatr 2012;79:961-2.  Back to cited text no. 5
    
6.Sharma R. Online interactive calculator for real-time update of the Kuppuswamy's socioeconomic status scale. Available from: www.scaleupdate.weebly.com [Last accessed on 2013 May 08].  Back to cited text no. 6
    
7.Sharma R. Online interactive calculator for real-time update of the Prasad's social classification. Available from: www.prasadscaleupdate.weebly.com [Last accessed on 2013 May 08].  Back to cited text no. 7
    



 
 
    Tables

  [Table 1], [Table 2]


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