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People with Disabilities in India: From Commitment to Outcomes

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not be expla<strong>in</strong>ed by this. The major driver of the differences appears <strong>to</strong> be def<strong>in</strong>itional, <strong>with</strong> the<br />

census def<strong>in</strong><strong>in</strong>g visual disabilities more broadly and vice versa for movement disabilities. 12<br />

Census and NSS sources give a divergent picture of the composition of disability<br />

Figure 1.1: Disability shares by type, census and NSS, early 2000s (% of disabled people)<br />

Figure 1.1<br />

Multiple<br />

%of PWDpopulation<br />

Locomo<strong>to</strong>r<br />

Speech<br />

Hear<strong>in</strong>g<br />

Visual<br />

Census rates<br />

NSS rates<br />

Mental<br />

0 10 20 30 40 50 60<br />

Source: NSS, 58 th round and census, 2001.<br />

1.5. The aggregate number of PWD <strong>in</strong> <strong>India</strong> is keenly disputed, <strong>with</strong> alternative<br />

estimates <strong>in</strong>variably higher than official ones.<br />

13<br />

Higher estimates are based on several<br />

arguments:<br />

• exclusion of disability categories <strong>in</strong> both NSS and census. The reliance on PWD Act<br />

categories is a limit<strong>in</strong>g fac<strong>to</strong>r. There are numerous examples of excluded disability<br />

categories, <strong>in</strong>clud<strong>in</strong>g autism, thalassemia, haemophilia, and many learn<strong>in</strong>g disabilities.<br />

• the method of question<strong>in</strong>g on disability <strong>in</strong> both census and NSS which relies on a<br />

traditional “diagnostic” identification of disability by untra<strong>in</strong>ed <strong>in</strong>terviewers, which recent<br />

work com<strong>in</strong>g out of a UN expert group suggests is the method which yields the lowest<br />

disability estimates. Box 1.1 notes the various methods and issues <strong>in</strong>volved. Simply ask<strong>in</strong>g<br />

whether or not people have a disability (and what type) has been found worldwide <strong>to</strong> yield<br />

lower bound estimates of prevalence, <strong>with</strong> a strong bias <strong>to</strong>wards more serious disabilities.<br />

• disability-specific surveys which have found often substantially higher rates of disability <strong>in</strong><br />

cases where <strong>in</strong>terviewers have been far better tra<strong>in</strong>ed on detection and prob<strong>in</strong>g. Examples<br />

<strong>in</strong>clude: a meta-analysis of mental illness <strong>in</strong>cidence gives an estimated prevalence of 5.8<br />

percent of the population based on dedicated surveys. 14 A GoI/WHO survey <strong>in</strong> the 1980s<br />

estimated visual disabilities at 1.5 percent of the population, a share that may have grown<br />

based on a national estimate of bl<strong>in</strong>d persons <strong>in</strong> 2000 of 18.7 million, of which 9.5 million<br />

were cataract-related and 3 million refractive error-related. 15 Naturally, different studies are<br />

subject <strong>to</strong> differences <strong>in</strong> approach and def<strong>in</strong>ition, but careful work by well-tra<strong>in</strong>ed<br />

<strong>in</strong>terviewers us<strong>in</strong>g better <strong>in</strong>struments and <strong>with</strong> reasonable def<strong>in</strong>itions of disability have<br />

produced substantially higher estimates of disability prevalence than official statistics. The<br />

12 Bhanushali (2005). GoI has recognized a number of these issues, as summarized <strong>in</strong> the 2006 Technical<br />

Advisory Committee report on Disability Statistics.<br />

13 See Puri (2005) prepared as background material for this report, which provides a comprehensive<br />

summary of micro-studies on prevalence of different forms of disability <strong>in</strong> <strong>India</strong>.<br />

14 Khandelwal et al. (2004).<br />

15 Dandona et al (2001). If there is no change <strong>in</strong> the current trend of bl<strong>in</strong>dness, the study estimates that the<br />

number of bl<strong>in</strong>d persons <strong>in</strong> <strong>India</strong> would <strong>in</strong>crease <strong>to</strong> 24.1 million <strong>in</strong> 2010, and <strong>to</strong> 31.6 million <strong>in</strong> 2020.<br />

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