Table 1.

The overall disability score

DISAB (overall disability score) = Sum of

extent of impairment (takes values 1 (unilateral), 2 (bilateral predominantly lower limb) or 3 (bilateral other))

+ severity of impairment of the most impaired body part (0 (minimal), 1 (mild), 2 (moderate) or 3 (severe))

+ cognitive impairment (0, 1 (~IQ 50–69), 2 (~ 35–49) or 3 (< 35))

+ active epilepsy (0, 1)

+ bilateral blindess (0, 1)

+ bilateral deafness (0, 1)