Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Relationship between spectacle usage and level of education
| Level of education | Spectacle usage | Total (%) | |
| Yes (%) | No (%) | ||
| Primary | 5 (50) | 133 (67.9) | 138 (67.0) |
| Secondary | 2 (20) | 53 (27.0) | 55 (26.7) |
| Tertiary | 3 (30) | 1 (0.5) | 4 (1.9) |
| None | 0 (0) | 9 (4.6) | 9 (4.4) |
| Total | 10 (100) | 196 (100) | 206 (100) |
chi-square = 43.701, p = 0.000
