Guatemala (2015)

Guatemala, 2015
Principal Investigator
Mariano Yee
Trainer
Evelyn Diaz
Sample size
3850
Response rate
97.7%
RAAB version
RAAB6
Diabetic retinopathy
No
Disability module
No

Vision impairment

Prevalence (age-sex adjusted)

Female
Male
Total
Extrapolated magnitude
%
95% CI
Extrapolated magnitude
%
95% CI
Extrapolated magnitude
%
95% CI
Blind
12 676
1.3
0.8 - 1.8
6 720
0.8
0.2 - 1.3
19 395
1.0
0.7 - 1.4
Severe
22 471
2.3
1.4 - 3.2
11 706
1.3
0.4 - 2.3
34 176
1.8
1.1 - 2.6
Moderate
54 881
5.6
4.3 - 7.0
41 379
4.7
3.3 - 6.2
96 260
5.2
4.0 - 6.4
Mild
274 767
28.2
23.6 - 32.7
236 239
27.0
22.2 - 31.8
511 006
27.6
23.3 - 32.0

Cataract

Operable cataract prevalence (age-sex adjusted)

Female
Male
Total
Extrapolated magnitude
%
95% CI
Extrapolated magnitude
%
95% CI
Extrapolated magnitude
%
95% CI
<3/60
7 007
0.7
0.3 - 1.1
3 745
0.4
0.1 - 0.8
10 752
0.6
0.3 - 0.8
<6/60
21 345
2.2
1.4 - 3.0
9 818
1.1
0.3 - 1.9
31 162
1.7
1.0 - 2.4
<6/18
48 021
4.9
3.8 - 6.0
30 239
3.5
2.1 - 4.8
78 259
4.2
3.2 - 5.2
<6/12
118 297
12.1
10.1 - 14.2
94 820
10.8
8.5 - 13.2
213 117
11.5
9.6 - 13.5

Cataract surgical coverage (CSC) (age-sex adjusted)

Female
Male
Total
%
95% CI
%
95% CI
%
95% CI
CSC<3/60
-
55.7
41.0 - 70.3
-
57.3
35.9 - 35.9
-
56.2
43.8 - 67.5
CSC<6/60
-
30.9
20.4 - 41.4
-
33.9
18.9 - 48.8
-
31.9
21.9 - 39.9
CSC<6/18
-
20.6
13.8 - 27.4
-
16.7
9.2 - 24.3
-
19.1
15.1 - 26.1
CSC<6/12
-
10.9
7.6 - 14.2
-
7.1
3.4 - 10.7
-
9.2
8.2 - 13.6

Effective cataract surgical coverage (eCSC) (age-sex adjusted)

The RAAB research team are in the process of concluding a formal analysis of eCSC with the World Health Organization and the Vision Loss Expert Group. eCSC results will be available on the repository in 2022.

Refractive error

Vision impairing refractive error is defined as presenting VA less than 6/12 improving to 6/12 with pinhole. Use of presenting VA accounts for the prevalence of uncorrected or undercorrected refractive error only.

Vision impairing refractive error prevalence (age-sex adjusted)

Female
Male
Total
Extrapolated magnitude
%
95% CI
Extrapolated magnitude
%
95% CI
Extrapolated magnitude
%
95% CI
Blind
0
0.0
0.0 - 0.0
0
0.0
0.0 - 0.0
0
0.0
0.0 - 0.0
Severe
447
0.0
0.0 - 0.1
234
0.0
0.0 - 0.2
681
0.0
0.0 - 0.1
Moderate
1 310
0.1
0.0 - 0.3
2 191
0.3
0.0 - 0.5
3 502
0.2
0.0 - 0.3
Mild
193 329
19.8
15.8 - 23.8
162 344
18.6
15.0 - 22.2
355 673
19.2
15.6 - 22.8

Effective refractive error coverage (eREC) (age-sex adjusted)

The RAAB research team are in the process of concluding a formal analysis of eREC with the World Health Organization and the Vision Loss Expert Group. eREC results will be available on the repository in 2022.

Notes

Vision impairment categories defined according to WHO thresholds using presenting visual acuity in the better eye.

All prevalence and coverage estimates are adjusted to the age and gender distribution of the population 50 years and older in the survey area.

All 95% confidence intervals adjusted to account for the cluster design of the survey.