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Table 3 The selected demographic characteristics and the initial values of medical absenteeism of the intervention and control groups

From: Addressing medical absenteeism in pre-vocational secondary students: effectiveness of a public health intervention, using a quasi-experimental design

  Intervention group (493) Control group (445) Statistical values
Gender, % female 55.8* 64.3 χ2 = 7.01**, df = 1
Age in years, mean (SD) 14.54 (1.32) 14.32 (1.28) t = 2.49*
Absence rate in periods per 12 school weeks, mean (SD) 3.91 (1.62)** 4.50 (1.16) t = −6.20**
Absence rate in days per 12 school weeks, mean (SD) 8.40 (5.39)* 9.92 (5.39) t = −4.27**
Number of days per period 2.29 (1.53) 2.39 (1.67) t = −0.95
  1. * p ≤ 0.05; ** p ≤ 0.01