Table 3.
Comparison of computer vision syndrome score among different age and class groups
| Variable | Category | n | Mean CVS score±SD | 95% CI for mean CVS (lower bound-upper bound) | Minimum | Maximum | P |
|---|---|---|---|---|---|---|---|
| Age group (years) | 5-7 | 104 | 25.40±7.89 | 23.87-26.94 | 17.0 | 43.0 | <0.001 |
| 8-10 | 153 | 26.55±7.52 | 25.35-27.75 | 17.0 | 53.0 | ||
| 11-13 | 109 | 24.64±6.21 | 23.46-25.82 | 17.0 | 39.0 | ||
| 14-16 | 190 | 27.96±7.80 | 26.85-29.08 | 17.0 | 53.0 | ||
| >16 | 98 | 29.59±6.42 | 28.30-30.88 | 18.0 | 44.0 | ||
| Total | 654 | 26.91±7.47 | 26.34-27.49 | 17.0 | 53.0 | ||
| Class | 1-5 | 242 | 26.16±7.80 | 25.17-27.15 | 17.0 | 53.0 | <0.001 |
| 6-9 | 172 | 24.83±6.64 | 23.83-25.83 | 17.0 | 53.0 | ||
| 10-12 | 240 | 29.17±7.11 | 28.27-30.08 | 18.0 | 53.0 | ||
| Total | 654 | 26.91±7.47 | 26.34-27.49 | 17.0 | 53.0 |
CVS: Computer vision syndrome, SD: Standard deviation, CI: Confidence interval