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Table 2 Symptom scores by exposure group

From: Impact of screen exposure on pediatric vernal Keratoconjunctivitis: a survey during the COVID-19 pandemic in Italy

   Itching Photophobia Tearing Foreign Body Sensation Burning
March–June 2020: 2-4 h/day (n = 63) Mean 1.1111 1.1269 0.9206 0.9047 1.1269
SD 0.9000 0.9586 0.9384 0.9624 1.0394
Total 5.1904     
March–June 2020: 4-6 h/day (n = 28) Mean 1.0714 1.3571 1.2143 0.9643 1.1785
SD 0.8997 1.0959 0.7868 0.9222 0.9833
Total 5.7857     
March–June 2020: > 6 h/day (n = 12) Mean 1.4166 1.3333 1.4166 1.4166 1.5833
SD 0.7929 1.1547 0.9003 0.9962 0.5149
Total 7.1666     
Pearson correlation coefficient (screen exposure vs symptoms)   0.8087 0.8151 0.9944 0.9142 0.9130
  1. Mean symptom scores for children exposed to long-distance learning, divided into exposure groups; Pearson correlation coefficients between symptom scores and screen exposure
  2. SD Standard Deviation