Table 3. Multivariable Linear Model Results for Postoperative Visual Acuity.
| Characteristic | UCVA | BCVA | ||||||
|---|---|---|---|---|---|---|---|---|
| Model 1: first surgery eye | Model 2: second surgery eye | Model 3: first surgery eye | Model 4: second surgery eye | |||||
| Change in letters (95% CI) | P value | Change in letters (95% CI) | P value | Change in letters (95% CI) | P value | Change in letters (95% CI) | P value | |
| Decade of life | −1.01 (−1.04 to −0.98) | <.001 | −0.75 (−0.78 to −0.72) | <.001 | −0.93 (−0.95 to −0.91) | <.001 | −0.67 (−0.69 to −0.65) | <.001 |
| Sex (referent: female) | ||||||||
| Male | 0.93 (0.88 to 0.98) | <.001 | 0.98 (0.93 to 1.03) | <.001 | 0.15 (0.11 to 0.18) | <.001 | 0.06 (0.03 to 0.09) | <.001 |
| Not reported | −0.48 (−0.95 to 0) | .05 | −0.16 (−0.64 to 0.31) | .50 | 0.69 (0.36 to 1.02) | <.001 | 0.28 (−0.02 to 0.59) | .07 |
| Race (referent: White) | ||||||||
| Asian | −1.08 (−1.24 to −0.91) | <.001 | −1.24 (−1.41 to −1.08) | <.001 | −0.9 (−1.02 to −0.79) | <.001 | −0.8 (−0.91 to −0.69) | <.001 |
| Black or African American | −0.46 (−0.57 to −0.36) | <.001 | −0.23 (−0.34 to −0.13) | <.001 | −1.1 (−1.17 to −1.03) | <.001 | −0.97 (−1.03 to −0.9) | <.001 |
| Othera | −1.28 (−1.51 to −1.04) | <.001 | −1.08 (−1.31 to −0.85) | <.001 | −1.28 (−1.44 to −1.13) | <.001 | −1.01 (−1.16 to −0.87) | <.001 |
| Unknown | −0.13 (−0.2 to −0.06) | <.001 | −0.13 (−0.19 to −0.06) | <.001 | −0.44 (−0.49 to −0.39) | <.001 | −0.37 (−0.42 to −0.33) | <.001 |
| Insurance (referent: Medicare) | ||||||||
| Commercial | 0.07 (0.01 to 0.13) | .02 | −0.01 (−0.07 to 0.05) | .77 | −0.1 (−0.14 to −0.06) | <.001 | −0.1 (−0.13 to −0.06) | <.001 |
| Medicaid | −1.49 (−1.72 to −1.25) | <.001 | −1.2 (−1.43 to −0.97) | <.001 | −1.66 (−1.83 to −1.5) | <.001 | −1.29 (−1.45 to −1.14) | <.001 |
| Other | 0.26 (0.2 to 0.32) | <.001 | 0.25 (0.19 to 0.31) | <.001 | 0.26 (0.22 to 0.3) | <.001 | 0.16 (0.12 to 0.2) | <.001 |
| Prior diagnosis in surgery eye | ||||||||
| AMD | −3.02 (−3.1 to −2.95) | <.001 | −2.32 (−2.39 to −2.24) | <.001 | −2.76 (−2.81 to −2.71) | <.001 | −2.11 (−2.16 to −2.06) | <.001 |
| DR | −4.29 (−4.41 to −4.16) | <.001 | −3.51 (−3.63 to −3.39) | <.001 | −4.47 (−4.55 to −4.38) | <.001 | −3.92 (−4 to −3.84) | <.001 |
| Glaucoma | −1.19 (−1.26 to −1.13) | <.001 | −0.83 (−0.89 to −0.77) | <.001 | −0.99 (−1.03 to −0.95) | <.001 | −0.74 (−0.78 to −0.71) | <.001 |
| Baseline BCVA in surgery eye | 0.2 (0.19 to 0.2) | <.001 | 0.27 (0.27 to 0.27) | <.001 | 0.17 (0.17 to 0.18) | <.001 | 0.25 (0.24 to 0.25) | <.001 |
| Surgery group (referent: DSBCS-90) | ||||||||
| DSBCS-14 | 0.41 (0.36 to 0.45) | <.001 | 0.79 (0.74 to 0.83) | <.001 | 0.89 (0.86 to 0.92) | <.001 | 0.48 (0.45 to 0.51) | <.001 |
| ISBCS | −2.79 (−2.95 to −2.63) | <.001 | −1.67 (−1.83 to −1.51) | <.001 | −1.64 (−1.74 to −1.53) | <.001 | −1.88 (−1.98 to −1.78) | <.001 |
Abbreviations: AMD, age-related macular degeneration; BCVA, best-corrected visual acuity; DR, diabetic retinopathy; DSBCS-14, delayed sequential bilateral cataract surgery with 1- to 14-day interval; DSBCS-90, delayed sequential bilateral cataract surgery with 15- to 90-day interval; IRIS, Intelligent Research in Sight; ISBCS, immediate sequential bilateral cataract surgery; UCVA, uncorrected visual acuity.
a
Other race indicates that the individuals were reported as other in the IRIS Registry.