Table 5.
Bivariate and multivariable logistic regression analysis of factors associated with computer vision syndrome (CVS), University of Gondar, Ethiopia, 2021 (N = 500).
| Variables | CVS | COR with 95% CI | AOR with 95% CI | P-value | |
|---|---|---|---|---|---|
| Yes | No | ||||
| Years of computer use | |||||
| <9 | 201 | 62 | 1 | 1 | |
| >9 | 193 | 44 | 1.35 (0.87 -2.09) | 1.65 (1.01-2.71) | .045* |
| The habit of taking a break | |||||
| Yes | 199 | 74 | 0.44 (0.28-0.69) | 0.55 (0.34-0.92) | .023* |
| No | 195 | 32 | 1 | 1 | |
| Use of other visual display terminals | |||||
| Yes | 224 | 35 | 2.67 (1.70-4.20) | 2.63 (1.60-4.32) | <.001** |
| No | 170 | 71 | 1 | 1 | |
| Use of ergonomically comfortable setting chair | |||||
| Yes | 114 | 43 | 1 | 1 | |
| No | 280 | 63 | 1.68 (1.07-2.62) | 1.48 (0.88-2.48) | .139 |
| The brightness of the computer screen | |||||
| Bright | 224 | 74 | 1 | 1 | |
| Dull | 170 | 32 | 1.76 (1.11-2.78) | 1.51 (0.90-2.55) | .121 |
| Use eye droplets | |||||
| Yes | 28 | 24 | 0.26 (0.14-0.47) | 0.30 (0.15-0.58) | <.001** |
| No | 366 | 82 | 1 | 1 | |
| Distance from monitor screen (cm) | |||||
| ⩽50 | 242 | 75 | 0.66 (0.41-1.05) | 0.71 (0.42-1.18) | .183 |
| >50 cm | 152 | 31 | 1 | 1 | |
| Workplace illumination level | |||||
| 300-500 lx | 66 | 36 | 1 | 1 | |
| <300 and >500 lx | 328 | 70 | 2.56 (1.58-4.14) | 2.47 (1.47-4.33) | ⩽.001** |
Abbreviations:1, reference category; AOR, adjusted odds ratio; CI, confidence interval; COR, crudes odds ratio; CVS, computer vision syndrome.
*Significant at P < .05. **Significant at P < .001 in multivariable logistic regression analysis, Hosmer and Lemeshow test P = .741.