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Table 2 Prevalence of sleep disturbance according to gender and Young Diagnostic Questionnaire score

From: Relationship between internet addiction and sleep disturbance in high school students: a cross-sectional study

Gender YDQ score n Sleep disturbance
% 95% CI
Boys
  ≤ 2 1776 38.6 36.3–40.9
  3–4 610 57.7 53.8–61.6
  ≥ 5 249 70.3 64.6–76.0
Girls
  ≤ 2 1501 44.5 42.0–47.0
  3–4 739 63.9 60.4–67.4
  ≥ 5 389 78.4 74.3–82.5
  1. Abbreviations: CI confidence interval, YDQ Young Diagnostic Questionnaire
  2. The YDQ scores are interpreted as follows: ≤ 2, no Internet addiction; 3–4, at risk of Internet addiction; ≥ 5, Internet addiction