| Factors | Direct medical cost (USD$) β (95% CI) or mean (95% CI) | p-value |
| Age, y | −7.5 (−13.1 - −2.01) | 0.008 |
| Gender |
| 0.886 |
| Male | 399.0 (332.2 - 465.8) |
|
| Female | 412.1 (310.6 - 513.7) |
|
| Type of glaucoma |
| 0.006 |
| POAG | 315.1 (266.7 - 363.6) |
|
| PACG | 668.9 (514.9 - 822.8) |
|
| Other types | 492.5 (394.4 - 590.7) |
|
| Duration of glaucoma, y |
| 0.005 |
| <5 | 299.7 (259.3 - 340.1) |
|
| ≥5 | 551.8 (427.9 - 675.8) |
|
| Severity of glaucoma |
| 0.015 |
| Mild | 232.2 (207.2 - 257.3) |
|
| Moderate | 336.9 (289.8 - 383.9) |
|
| Severe | 557.7 (432.9 - 682.4) |
|
| Treatment |
| <0.001 |
| Medical treatment only | 301.2 (262.6 - 339.9) |
|
| Laser or surgical treatment | 839.5 (683.1 - 996.0) |
|