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Table 3 Demographic characteristics of the study participants

From: Sleep hygiene intervention for youth aged 10 to 18 years with problematic sleep: a before-after pilot study

Characteristics (n = 33)  
Mean age in years (SD) 12.9 (2.19)
Sex
  Male 15 (45%)
  Female 18 (55%)
Ethnicity
  European 28 (85%)
  Māori 3 (9%)
  Asian 1 (3%)
  Other 1 (3%)
Deprivation Index; mean (SD) 4.27 (2.45)
Maternal Education
  Tertiary 18 (56%)
  High School 13 (41%)
  None 1 (3%)