《Table 1 Data of the patients at the baseline visit[1]》

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《Comment on “Intravitreal dexamethasone implants for diabetic macular edema”》

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There were no statistically significant differences in clinical and demographic variables between subgroups at baseline except that BCVA was higher in the naive subgroup（P≤0.05）.

In the letter，it is said that“a comparison had to be carried out between the 3 groups of patients to establish whether or not they are comparable”.Such a comparison can be found in Table 1[1]of our work.As indicated in the text，there were no statistically significant differences in the clinical or demographic variables between the sub-groups at baseline except that the BCVA was higher in the naive subgroup.This is an interesting aspect of our paper that we have not commented on in the original work and it makes us wonder if it is possible that there was a ceiling effect that would explain the lower BCVA gain in this sub-group[3].