Table 2.
Risk factors of having more than 3 symptoms
| Risk factor | ≤ 3 symptoms (n = 99) n (%) | > 3 symptoms (n = 201) n (%) | P value |
|---|---|---|---|
| Gender | |||
| Male (n = 124) | 60 (48.4) | 64 (51.6) | < 0.001* |
| Female (n = 176) | 39 (22.2) | 137 (77.8) | |
| Myopia | |||
| Yes (n = 111) | 35 (31.5) | 76 (68.5) | 0.678 |
| No (n = 189) | 64 (33.9) | 125 (66.1) | |
| Hyperopia | |||
| Yes (n = 22) | 6 (27.3) | 16 (72.7) | 0.553 |
| No (n = 278) | 93 (33.5) | 185 (66.5) | |
| Astigmatism | |||
| Yes (n = 41) | 11 (26.8) | 30 (73.2) | 0.366 |
| No (n = 259) | 88 (34.0) | 171 (66.0) | |
| Use of corrective lens | |||
| Yes (n = 161) | 50 (31.1) | 111 (68.9) | 0.441 |
| No (n = 139) | 49(35.3) | 90 (64.7) | |
| Duration of device use in hours pre-COVID-19 Mean ± SD | 4.9 ± 2.0 | 5.3 ± 2.1 | 0.164 |
| Duration of device use in hours during COVID-19 Mean ± SD | 5.6 ± 2.3 | 6.8 ± 2.8 | < 0.001* |
| P value | 0.023* | < 0.001* | |
*Statistically significant at 5% level of significance