Multivariable analysis for demographic and optic disc factors associated with grey crescent in glaucoma cases
| Total N of eyes | Grey crescent present n (%) | Adjusted analysis* | ||
| OR (95% CI) | P value | |||
| Age (per 10 years younger) | 2729 | 273 (10.0) | 1.27 (1.11 to 1.43) | 0.001 |
| Diabetes | 0.01 | |||
| No | 1650 | 144 (8.7) | Ref | |
| Yes | 1079 | 129 (12.0) | 1.46 (1.09 to 1.96) | |
| Stereoscopically identified disc tilt | <0.0001 | |||
| No | 2250 | 187 (8.3) | Ref | |
| Yes | 479 | 86 (18.0) | 1.84 (1.36 to 2.48) | |
| Sloping retinal region adjacent to the outer disc margin | <0.0001 | |||
| No | 1995 | 159 (8.0) | Ref | |
| Yes | 734 | 114 (15.5) | 2.37 (1.74 to 3.22) | |
| Beta peripapillary atrophy | <0.0001 | |||
| No | 852 | 55 (6.5) | Ref | |
| Yes | 1877 | 218 (11.6) | 2.32 (1.60 to 3.37) | |
*The multivariable logistic regression model only included all the factors listed in this table.