Selected article for: "control group and present study"

Author: Liwen Chen; Chaohua Deng; Xuhui Chen; Xian Zhang; Bo Chen; Huimin Yu; Yuanjun Qin; Ke Xiao; Hong Zhang; Xufang Sun
Title: Ocular manifestations and clinical characteristics of 534 cases of COVID-19 in China: A cross-sectional study
  • Document date: 2020_3_16
  • ID: 5zrywg58_37
    Snippet: The present study has some limitations. First, the sample size was small and the covered population consisted mainly of patients with mild disease; this is because only patients with mild symptoms and cured patients could complete our questionnaire survey. Second, this is a descriptive study, and no correlation analysis was performed; however, we present the ocular manifestations that we observed during the SARS-CoV-2 outbreak in detail. To date,.....
    Document: The present study has some limitations. First, the sample size was small and the covered population consisted mainly of patients with mild disease; this is because only patients with mild symptoms and cured patients could complete our questionnaire survey. Second, this is a descriptive study, and no correlation analysis was performed; however, we present the ocular manifestations that we observed during the SARS-CoV-2 outbreak in detail. To date, this is the most comprehensive survey with the largest sample related to the eyes. Third, no normal population was observed in our study, therefore, a normal control group should be included for comparison in future studies.

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