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Table 2 Frequency distribution of qualitative demographic variables in the case and control groups

From: Effect combined learning on oral health self-efficacy and self-care behaviors of students: a randomized controlled trial

Group Case Control p–v
  Variable
Number % Number %
Father’s education Primary school and Junior high school 7 18.4 9 20.5 0.965
  High school diploma and associate degree 19 50.00 22 50.00  
  Bachelor’s degree and higher 12 31.6 13 19.5  
Mother’s education Primary school and Junior high school 6 15.8 11 23.3 0.458
  High school diploma and associate degree 22 57.9 26 60.5  
  Bachelor’s degree and higher 10 26.3 7 16.3  
Birth Rank First 15 39.5 26 59.1 0.207
  Second 15 39.5 12 17.3  
  Third or higher 8 21.05 6 13.6  
Gender Girl 22 57.9 20 45.5 0.184
  Boy 16 42.1 24 54.5