|LETTER TO EDITOR
|Year : 2013 | Volume
| 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 Publication||27-Jun-2013|
Department of Community Medicine, University College of Medical Sciences and Guru Teg Bahadur Hospital, Delhi
Source of Support: None, Conflict of Interest: None
|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 2018 Nov 20];2:157. Available from: http://journal.sajc.org/text.asp?2013/2/3/157/114142
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. , 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. 
Mishra and Singh have pointed out that an income classification usually has relevance only for the period under study.  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.  An online tool to enable real-time update of the scale is also made available.  There is a need for a similar revision of the Prasad's classification [Table 1] too, to maintain its validity of social classification.
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 |
Click here to view
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.  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|| |
|1.||Kuppuswamy B. Manual of socioeconomic status (Urban). Delhi: Manasayan, 1981. |
|2.||Prasad BG. Social classification of Indian families. J Indian Med Assoc 1961;37:250-1. |
|3.||Kumar P. Social classification-need for constant updating. Indian J Community Med 1993;18:60-1. |
|4.||Mishra D, Singh HP. Kuppuswamy's socioeconomic status scale: A revision. Indian J Pediatr 2003;70:273-4. |
|5.||Sharma R. Kuppuswamy's socioeconomic status scale-revision for 2011 and formula for real-time updating. Indian J Pediatr 2012;79:961-2. |
|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]. |
|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]. |
[Table 1], [Table 2]
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