Table 5.
Factors related to contamination.
| Factors | Contaminated | Non-contaminated | P |
|---|---|---|---|
| Group, number of bottles (%) | 0.293 | ||
| Group 1 | 62 (23.22%) | 205 (76.78%) | |
| Group2 | 9 (32.14%) | 19 (67.86%) | |
| Gender number of bottles (%) | 0.305 | ||
| Female | 35 (21.74%) | 126 (78.26%) | |
| Male | 36 (26.87%) | 98 (73.13%) | |
| Age, years (mean + SD) | 55.99 ± 15.52 | 58.58 ± 14.31 | 0.194 |
| Mean visual acuity, LogMAR (mean + SD) | 0.06 ± 0.33 | 0.04 ± 0.26 | 0.567 |
| Education level, number of bottles (%) | 0.686 | ||
| Up to primary | 4 (28.57%) | 10 (71.43%) | |
| At least secondary | 67 (23.84%) | 214 (76.16%) | |
| Underlying disease, number of bottles (%) | 0.327 | ||
| No | 44 (26.19%) | 124 (73.81%) | |
| Yes | 27 (21.26%) | 100 (78.74%) | |
| Eye disease for eye drops, number of bottles (%) | 0.504 | ||
| Infectious keratitis | 70 (24.05%) | 221 (75.95%) | |
| Corneal edema | 1 (50%) | 1 (50%) | |
| Post intraocular surgery | 0 | 2 (100%) | |
| Report of usage contamination by user, number of bottles (%) | 0.715 | ||
| Never | 65 (23.81%) | 208 (76.19%) | |
| Sometimes | 6 (27.27%) | 16 (72.73%) | |
| User, number of bottles (%) | 0.911 | ||
| Self-used | 6 (25.0%) | 18 (75.0%) | |
| Other-used | 65 (23.99%) | 206 (76.01%) | |
| Storage, number of bottles (%) | 0.424 | ||
| In refrigerator | 70 (23.89%) | 223 (76.11%) | |
| Out of refrigerator | 1 (50%) | 1 (50%) | |
| Mean duration of usage, days (mean ± SD) | 3.23 ± 1.07 | 3.16 ± 1.23 | 0.671 |
| Container, number of bottles (%) | 0.145 | ||
| Glass container | 69 (23.63%) | 223 (76.37%) | |
| Plastic container | 2 (66.67%) | 1 (33.33%) | |
| Number of eye drops use per person, number of bottles (%) | 0.022∗ | ||
| Up to 2 bottles | 12 (41.38%) | 17 (58.62%) | |
| >2 bottles | 59 (22.18%) | 207 (77.82%) | |
Group 1 = medical professionals-used, Group 2 = patients-used.
∗Significant P–value < 0.05.