Table 5. Trends in prevalence, demographic characteristics, and severity among children with vision impairment, 1991–2010.
1991 | 1992 | 1993 | 1994 | 1996 | 2000 | 2002 | 2004 | 2006 | 2008 | 2010 | 1991–2010 | Average annual percent change 1991–2010 | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
% | Prev | % | Prev | % | Prev | % | Prev | % | Prev | % | Prev | % | Prev | % | Prev | % | Prev | % | Prev | % | Prev | % | Prev | ||
Total | n = 29 | 1.0 | n = 41 | 1.4 | n = 34 | 1.1 | n = 36 | 1.1 | n = 50 | 1.4 | n = 48 | 1.1 | n = 45 | 1.0 | n = 57 | 1.3 | n = 55 | 1.3 | n = 73 | 1.6 | N = 71 | 1.5 | n = 539 | 1.3 | 1.60 (0.35, 2.86) |
Demographics | |||||||||||||||||||||||||
White non-Hispanic | 41.4 | 0.7 | 48.8 | 1.2 | 64.7 | 1.2 | 58.3 | 1.2 | 50.0 | 1.4 | 31.3 | 0.8 | 44.4 | 1.2 | 24.6 | 0.9 | 32.7 | 1.2 | 27.4 | 1.3 | 28.2 | 1.3 | 38.4 | 1.1 | 0.55 (-1.41, 2.55) |
Black non-Hispanic | 51.7 | 1.3 | 46.3 | 1.6 | 32.4 | 0.9 | 36.1 | 1.0 | 42.0 | 1.4 | 58.3 | 1.4 | 42.2 | 1.0 | 54.4 | 1.6 | 40.0 | 1.1 | 38.4 | 1.4 | 36.6 | 1.3 | 43.2 | 1.3 | 0.22 (-1.73, 2.21) |
Male | 44.8 | 0.9 | 61.0 | 1.6 | 61.8 | 1.3 | 52.8 | 1.1 | 58.0 | 1.6 | 62.5 | 1.4 | 46.7 | 1.0 | 52.6 | 1.4 | 58.2 | 1.5 | 47.9 | 1.5 | 56.3 | 1.6 | 54.7 | 1.4 | 1.21 (-0.53, 2.98) |
Female | 55.2 | 1.1 | 39.0 | 1.1 | 38.2 | 0.8 | 47.2 | 1.0 | 42.0 | 1.2 | 37.5 | 0.8 | 53.3 | 1.1 | 47.4 | 1.3 | 41.8 | 1.1 | 52.1 | 1.7 | 43.7 | 1.3 | 45.3 | 1.2 | 2.06 (0.39, 3.77) |
Level of severity | |||||||||||||||||||||||||
Low vision | 31.0 | 0.3 | 31.7 | 0.4 | 11.8 | 0.1 | 16.7 | 0.2 | 28.0 | 0.4 | 31.3 | 0.3 | 28.9 | 0.3 | 26.3 | 0.4 | 30.9 | 0.4 | 31.5 | 0.5 | 33.8 | 0.5 | 28.4 | 0.4 | 3.37 (0.54, 6.28) |
Blindness | 69.0 | 0.7 | 68.3 | 0.9 | 88.2 | 0.9 | 75.0 | 0.8 | 58.0 | 0.8 | 64.6 | 0.7 | 71.1 | 0.7 | 73.7 | 1.0 | 69.1 | 0.9 | 64.4 | 1.0 | 57.7 | 0.8 | 67.7 | 0.9 | 0.77 (-0.48, 2.05) |
VI NOS* | nr | nr | nr | nr | nr | nr | nr | nr | 14.0 | 0.2 | nr | nr | nr | nr | nr | nr | nr | nr | nr | nr | 8.5 | 0.1 | 3.9 | 0.05 | N/A |
*Proportions and prevalence estimates with numerators <5 children are suppressed due to small sample sizes.