Research Article
Statistical Analysis on Time to Blindness of Glaucoma Patients at Jimma University Specialized Hospital: Application of Accelerated Failure Time Model
Table 2
Clinical variables of glaucoma patients’ at Jimma University Specialized Hospital from 2016 to 2020 (n = 321).
| Covariates | Category | Number of censored | Percentage of censored | Number of events | Percentage of event | Log-rank test | Chq | value |
| Duration of diagnosis | Short (<1 year) | 26 | 8.10 | 97 | 30.21 | 11.0 | 0.001 | Medium (1–5 years) | 20 | 6.23 | 80 | 24.92 | Long (≥6 years) | 14 | 4.32 | 84 | 26.17 | Type of medication | Timoglue | 24 | 7.48 | 108 | 33.64 | 3.90 | 0.100 | Timolol | 17 | 5.29 | 75 | 23.36 | Diamox | 19 | 5.91 | 78 | 24.29 | Stage of glaucoma | Early | 11 | 3.43 | 21 | 6.540 | 13.2 | 0.004 | Moderate | 20 | 6.23 | 132 | 41.12 | Advanced | 29 | 9.03 | 43 | 13.39 | Absolute | 0 | - | 65 | 20.25 | Cup-disk ratio | ≤0.7 | 34 | 10.59 | 94 | 29.28 | 2.30 | 0.100 | | 26 | 8.11 | 167 | 52.11 | IOP | Normal | 21 | 6.54 | 146 | 45.48 | 0.60 | 0.012 | Not normal | 39 | 12.15 | 115 | 35.83 | Diabetics | No | 42 | 13.11 | 167 | 52.02 | 1.90 | 0.200 | Yes | 18 | 5.61 | 94 | 29.28 |
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Source: Jimma University Specialized Hospitals, Ethiopia; from January 1, 2016, to August 30, 2020.
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