Table 2.

Age-adjusted and sex-adjusted prevalence of presenting (available correction) blindness and grade of VI: SVI, MVI and EVI. N is the estimated number of people 50 years and older with the condition

	Male		Female		Total
	N	% (95% CI)	N	% (95% CI)	N	% (95% CI)
Blindness	1159	1.29 (0.68 to 2.53)	1767	1.88 (1.18, 3.10)	2929	1.59 (1.08 to 2.38)
SVI	581	0.64 (0.26 to 1.76)	828	0.88 (0.43 to 1.90)	1411	0.77 (0.43 to 1.40)
MVI	3715	4.12 (2.81 to 5.99)	4183	4.46 (3.25 to 6.12)	7812	4.25 (3.32 to 5.42)
EVI	4397	4.88 (3.48 to 6.83)	7271	7.75 (6.06 to 9.86)	11 787	6.41 (5.25 to 7.81)

EVI, early VI; MVI, moderate VI; SVI, severe VI; VI, visual impairment.