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. 2020 Jul 31;9(8):2459. doi: 10.3390/jcm9082459

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Kaplan–Meier estimator showing retreatment-free proportion after initial treatment according to the groups. Retreatment-free proportion at 12 months was 83.3% (13/16), 41.2% (19/45), 20% (7/35), 14.3% (2/14) in pachydrusen group, no drusen group, and PCV/ Scarring group, respectively. Retreatment-free period was significantly longer in pachydrusen group compared to other groups. (all p-value < 0.001). Mean number of additional injections was significantly smaller in Group 1 (0.5 ± 1.32) compared with other groups. (Group 2: 1.73 ± 2.08, p = 7.5×10^-3; Group 3: 2.71 ± 1.99, p = 1.4×10^-4; Group 4: 2.71 ± 2.16, p = 4.0×10^-4).