The Prevalence of Visual Impairment and Refractive Errors among a Youth Population in Mozambique: Evidence of the Need for Intervention
Abstract
1. Introduction
2. Materials and Methods
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Acknowledgments
Conflicts of Interest
Appendix A
References
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Uncorrected Visual Impairment | Presenting Visual Impairment | Best-Corrected Visual Impairment | ||||||
---|---|---|---|---|---|---|---|---|
Variables | N | % | N | % | N | % | N | % |
Age (years) | ||||||||
12–14 | 259 | 45.0 | 28 | 10.8 | 22 | 8.5 | 15 | 5.8 |
15–17 | 203 | 35.3 | 44 | 21.7 | 25 | 12.3 | 9 | 4.4 |
18–20 | 113 | 19.7 | 33 | 29.2 | 15 | 13.3 | 5 | 4.4 |
Gender | ||||||||
Male | 248 | 43.1 | 48 | 19.4 | 29 | 11.7 | 13 | 5.2 |
Female | 327 | 56.9 | 57 | 17.4 | 33 | 10.1 | 16 | 4.9 |
Grade | ||||||||
8th | 179 | 31.1 | 15 | 8.4 | 12 | 6.7 | 9 | 5.0 |
9th | 124 | 21.6 | 19 | 15.3 | 15 | 12.1 | 8 | 6.5 |
10th | 60 | 10.4 | 10 | 16.7 | 5 | 8.3 | 3 | 5.0 |
11th | 106 | 18.4 | 28 | 26.4 | 16 | 15.1 | 4 | 3.8 |
12th | 106 | 18.4 | 33 | 31.1 | 14 | 13.2 | 5 | 4.7 |
District | ||||||||
Megovolas | 148 | 25.7 | 19 | 12.8 | 14 | 9.5 | 7 | 4.7 |
Malema | 73 | 12.7 | 13 | 17.8 | 9 | 12.3 | 4 | 5.5 |
Rapale | 64 | 11.1 | 13 | 20.3 | 7 | 10.9 | 4 | 6.3 |
Meconta | 227 | 39.5 | 48 | 21.1 | 26 | 11.5 | 10 | 4.4 |
Mossuril | 63 | 11 | 12 | 21.1 | 6 | 9.5 | 4 | 6.3 |
VI category | ||||||||
Normal | 470 | 81.7 | 513 | 89.2 | 546 | 95.0 | ||
Mild VI | 32 | 5.6 | 31 | 5.4 | 15 | 2.6 | ||
Moderate VI | 70 | 12.2 | 28 | 4.9 | 10 | 1.7 | ||
Severe VI | 2 | 0.3 | 1 | 0.2 | 2 | 0.3 | ||
Blindness | 1 | 0.2 | 2 | 0.3 | 2 | 0.3 | ||
VI laterality | ||||||||
Normal | 470 | 81.7 | 513 | 89.2 | 546 | 95.0 | ||
Unilateral | 16 | 2.8 | 16 | 2.6 | 19 | 3.3 | ||
Bilateral | 89 | 15.5 | 46 | 8.2 | 10 | 1.7 |
Refractive Error | |||||||||
---|---|---|---|---|---|---|---|---|---|
Emmetropia | Myopia | Hyperopia | |||||||
Variables | % (N) | % (N) | OR (CI95%) | ORa (CI95%) | Power | % (N) | OR (CI95%) | ORa (CI95%) | Power |
Age (years) | |||||||||
12–14 | 81.9 (212) | 3.1 (8) | 1 | 1 | 15.1 (39) | 1 | 1 | ||
15–17 | 71.9 (146) | 13.3 (27) | 4.9 ** (2.2–11.1) | 5.1 ** (2.3–11.6) | 0.999 | 14.8 (30) | 1.1 (0.7–1.9) | n.s. | 0.131 |
18–20 | 66.4 (75) | 22.1 (25) | 8.8 ** (3.8–20.4) | 12.5 ** (5.2–30.1) | 0.999 | 11.5 (13) | 0.9 (0.5–1.9) | n.s. | 0.068 |
Gender | |||||||||
Male | 74.6 (185) | 10.9 (27) | 1 | 1 | 14.5 (36) | 1 | 1 | 0.069 | |
Female | 75.5 (248) | 10.1 (33) | 0.9 (0.5–1.6) | n.s. | 0.105 | 14.1 (46) | 1.0 (0.6–1.5) | n.s. | |
Grade | |||||||||
8th | 84.4 (151) | 2.8 (5) | 1 | 1 | 12.8 (23) | 1 | 1 | ||
9th | 77.4 (96) | 5.6 (7) | 2.2 (0.7–7.1) | n.s. | 0.677 | 16.9 (21) | 1.4 (0.8–2.7) | n.s. | 0.567 |
10th | 78.3 (47) | 8.3 (5) | 3.2 (0.9–11.6) | n.s. | 0.907 | 13.3 (8) | 1.1 (0.5–2.7) | n.s. | 0.088 |
11th | 67.0 (71) | 17.9 (19) | 8.1 ** (2.9–22.5) | n.s. | 0.999 | 15.1 (16) | 1.5 (0.7–3.0) | n.s. | 0.566 |
12th | 64.2 (68) | 22.6 (24) | 10.7 ** (3.9–29.1) | n.s. | 0.999 | 13.2 (14) | 1.4 (0.7–2.8) | n.s. | 0.144 |
District ● | |||||||||
Megovolas | 77.0 (114) | 6.8 (10) | 0.6 (0.3–1.1) | n.s. | 0.216 | 16.2 (24) | 1.2 (0.7–2.0) | n.s. | 0.224 |
Malema | 82.2 (60) | 12.3 (9) | 1.1 (0.5–2.3) | 0.4 * (0.2–1.0) | 0.098 | 5.5 (4) | 0.3 * (0.1–0.9) | 0.4 * (0.1–1.0) | 0.999 |
Rapale | 75.0 (48) | 10.9 (7) | 1.1 (0.5–2.5) | n.s. | 0.138 | 14.1 (9) | 1.0 (0.5–2.1) | n.s. | 0.171 |
Meconta | 74.4 (169) | 12.8 (29) | 1.5 (1.0–1.1) | n.s. | 0.254 | 12.8 (29) | 0.9 (0.5–1.4) | n.s. | 0.793 |
Mossuril | 66.7 (42) | 7.9 (5) | 0.8 (0.3–2.2) | n.s. | 0.229 | 25.4 (16) | 2.3 * (1.2–4.2) | 2.0 * (1.1–3.8) | 0.999 |
Total | 75.3 (433) | 10.4 (60) | 14.3 (82) |
Refractive State | Emmetropia | Myopia | Hyperopia | Astigmatism | ||||||
---|---|---|---|---|---|---|---|---|---|---|
n (%) | 433 (75.3) | 60 (10.4) | 82 (14.3) | 48 (8.3) | ||||||
Severity | mild | moderate | high | mild | moderate | high | WTR 1 | ATR 2 | OBL 3 | |
n (%) | 37 (6.4) | 22 (3.8) | 1 (0.2) | 54 (9.4) | 27 (4.7) | 1 (0.2) | 37 (6.4) | 4 (0.7) | 7 (1.2) |
Causes | Uncorrected VI | Presenting VI | Best-Corrected VI | |||
---|---|---|---|---|---|---|
N | % | N | % | N | % | |
Refractive error | 76 | 72.4 | 33 | 31.4 | 0 | 0.0 |
Amblyopia | 16 | 15.2 | 16 | 15.2 | 16 | 15.2 |
Congenital cataract | 4 | 3.8 | 4 | 3.8 | 4 | 3.8 |
Corneal opacity | 5 | 4.8 | 5 | 4.8 | 5 | 4.8 |
Toxoplasmosis | 1 | 1.0 | 1 | 1.0 | 1 | 1.0 |
Retinal disorders | 1 | 1.0 | 1 | 1.0 | 1 | 1.0 |
Other causes | 2 | 1.9 | 2 | 1.9 | 2 | 1.9 |
Total | 105 | 100 | 62 | 59.0 | 29 | 27.6 |
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Sengo, D.B.; Dos Santos, I.I.D.B.; Faquihe, M.F.; Tomo, H.B.J.F.; Muaprato, A.M.; Puchar, S.; Lôbo, G.M.R.J.; López-Izquierdo, I.; Caballero, P. The Prevalence of Visual Impairment and Refractive Errors among a Youth Population in Mozambique: Evidence of the Need for Intervention. Children 2021, 8, 892. https://doi.org/10.3390/children8100892
Sengo DB, Dos Santos IIDB, Faquihe MF, Tomo HBJF, Muaprato AM, Puchar S, Lôbo GMRJ, López-Izquierdo I, Caballero P. The Prevalence of Visual Impairment and Refractive Errors among a Youth Population in Mozambique: Evidence of the Need for Intervention. Children. 2021; 8(10):892. https://doi.org/10.3390/children8100892
Chicago/Turabian StyleSengo, Dulnério B., Isaura I. D. B. Dos Santos, Momade F. Faquihe, Hermenegildo B. J. F. Tomo, Alcino M. Muaprato, Sualé Puchar, Guida M. R. J. Lôbo, Inmaculada López-Izquierdo, and Pablo Caballero. 2021. "The Prevalence of Visual Impairment and Refractive Errors among a Youth Population in Mozambique: Evidence of the Need for Intervention" Children 8, no. 10: 892. https://doi.org/10.3390/children8100892
APA StyleSengo, D. B., Dos Santos, I. I. D. B., Faquihe, M. F., Tomo, H. B. J. F., Muaprato, A. M., Puchar, S., Lôbo, G. M. R. J., López-Izquierdo, I., & Caballero, P. (2021). The Prevalence of Visual Impairment and Refractive Errors among a Youth Population in Mozambique: Evidence of the Need for Intervention. Children, 8(10), 892. https://doi.org/10.3390/children8100892