Table 2.
2018 Control | 2019 Control | 2020 Cohort | |
---|---|---|---|
No. of patients | 103 | 111 | 82 |
Macula-on disease (%) | 44.7 | 49.5 | 24.4 |
VA (logMAR), median (interquartile range) | 0.54 (0.18–2.00) | 0.48 (0.10–2.00) | 1.00(0.3–3.00) |
Duration of symptoms (days), median (interquartile range) | 3 (1–7) | 4 (1–7) | 5.5 (2–7) |
Seeking treatment within 1 day of symptom onset (%) | 43.7 | 38.7 | 20.0 |
Primary PVR (%) | 3.8 | 4.5 | 13.4 |
logMAR = logarithm of the minimum angle of resolution; PVR = proliferative vitreoretinopathy; VA = visual acuity.
No difference was found in the presenting characteristics between the 2018 and 2019 control groups. A significant decrease was found in patients with macula-on disease at presentation (P < 0.001), a significant decrease was found in the proportion of patients seeking treatment within 1 day of symptoms (P = 0.005), and significant increase was found in the proportion of patients with primary PVR at presentation (P = 0.03) in the 2020 cohort compared with the 2019 control group. The median logMAR VA was worse for the 2020 cohort compared with the 2019 control group, with a significant difference in distributions (P = 0.008). P < 0.05 significance shown in boldface.