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. 2016 Oct 11;6:34631. doi: 10.1038/srep34631

Table 2. Basic parameters in subgroups.

  Group 1 (n = 16) Before IVI Group 2 (n = 15) Post-IVI  ≤ 5 weeks Group 3 (n = 15) Post-IVI > 5 weeks P-value
1 vs 2 1 vs 3 2 vs 3
Age (mean ± SD) 79.63 ± 7.88 75.33 ± 8.38 76.47 ± 10.35 0.15 0.34 0.74a
Female/male 4/12 6/9 4/11 0.46 1.00 0.70b
Latest IVI avastin/lucentis not applicable 9/6 11/4 0.70a
AMD/myopic NV/PCV 15/0/1 12/2/1 14/0/1 0.33 1.00 0.60a
Follow-up months (mean ± SD) 14.38 ± 6.89 12.14 ± 6.67 18.00 ± 11.30 0.37 0.29 0.09a
No. of samples below detection limit of VEGF after IVI 0 9 (60%) 2 (13.3%) < 0.05*b

aKruskal-Wallis test.

bFisher’s two-tailed test.

IVI = intravitreal injection, AMD = age-related macular degeneration, NV = neovascularization, PCV = polypoidal choroidal vasculopathy, VEGF = vascular endothelial growth factor, SD = standard deviation.