Table 2.
Prevalence of Epiretinal Membranes and Vitreomacular Traction in the Presence of Selected Ocular Conditions in the Beaver Dam Eye Study, 2008–2010.
| Covariate | ERM absent (N=2308 eyes) | ERM present (N=672 eyes) | HR (95% CI) | P value* | ||
|---|---|---|---|---|---|---|
|
| ||||||
| % with | % with | |||||
|
|
|
|||||
| Macular cysts | 1.8 | 7.6 | 4.0 (2.5, 6.3) | <.0001 | ||
| Paravascular cysts | 11.2 | 14.9 | 1.5 (1.1, 1.9) | 0.007 | ||
| Lamellar macular hole | 0.7 | 7.3 | 10.6 (5.8, 19.6) | <.0001 | ||
| Full thickness macular hole | 0.1 | 0.6 | 7.2 (1.5, 35.5)† | 0.06† | ||
| Vitreomacular traction | 0.6 | 2.2 | 2.7 (1.3, 5.5) | 0.01 | ||
|
| ||||||
| Covariate | ERM corrugation only (N=87 eyes) | ERM bridging and corrugation (N=414 eyes) | HR (95% CI) | P value* | ||
|
| ||||||
| % with | % with | |||||
|
|
|
|||||
| Macular cysts | 3.5 | 10.4 | 2.6 (0.9, 7.2) | 0.03 | ||
| Paravascular cysts | 17.2 | 12.6 | 0.7 (0.4, 1.3) | 0.29 | ||
| Lamellar macular hole | 5.8 | 9.2 | 1.5 (0.6, 3.6) | 0.31 | ||
| Full thickness macular hole | 1.2 | 1.0 | 0.7 (0.1, 6.5) | 0.77 | ||
| Vitreomacular traction | 2.3 | 1.9 | 0.7 (0.2, 3.5) | 0.71 | ||
|
| ||||||
| Covariate | VMT absent (N=2952 eyes) | VMT present (N=28 eyes) | HR (95% CI) | P value* | ||
|
| ||||||
| % with | % with | |||||
|
|
|
|||||
| Macular cysts | 3.0 | 21.4 | 7.0 (2.5, 20.1) | 0.06 | ||
| Paravascular cysts | 12.0 | 17.9 | 1.7 (0.6, 4.6) | 0.39 | ||
| Lamellar macular hole | 2.1 | 7.1 | 2.5 (0.4, 16.8) | 0.43 | ||
| Full thickness macular hole | 0.2 | 3.6 | † | |||
|
| ||||||
| Covariate | ERM absent, VMT absent (N=2295 eyes) | ERM present, VMT absent (N=657 eyes) | ERM absent, VMT present (N=13 eyes) | ERM present, VMT present (N=15 eyes) | P value* | |
|
| ||||||
| % with | % with | % with | % with | |||
|
|
|
|||||
| Macular cysts | 1.7 | 7.5 | 30.8 | 13.3 | <.0001 | |
| Paravascular cysts | 11.2 | 14.6 | 7.7 | 26.7 | 0.04 | |
| Lamellar macular hole | 0.7 | 7.2 | 0.0 | 13.3 | † | |
| Full thickness macular hole | 0.1 | 0.5 | 0.0 | 6.7 | † | |
CI, confidence interval; ERM; epiretinal membrane; HR, hazard ratio; VMT, vitreomacular traction
*
For any difference among groups. Adjusted for age and sex.
†
Estimate is unreliable due to low number of subjects.