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Table 2 School-related behaviors by intervention and time

From: Impact of stress reduction on negative school behavior in adolescents

  TM Group CTL Group
  Pre-intervention Period (n) Intervention Period Pre-intervention Period (n) Intervention Period p value*
Tardy periods 7.6 ± 6.9 (22) 7.1 ± 6.1 6.3 ± 7.0 (19) 6.9 ± 6.0 ns
Absentee periods 25.7 ± 24.7 (18) 19.3 ± 19.8 12.5 ± 7.3 (17) 17.3 ± 12.8 .05
Grades 79.3 ± 7.5 (20) 79.4 ± 7.9 73.6 ± 14.3 (18) 72.7 ± 15.2 ns
Rule infractions 0.2 ± 0.4 (21) 0.1 ± 0.3 0.0 ± 0.0 (19) 0.3 ± 0.8 .03
Days suspended 0.8 ± 1.8 (23) 0.5 ± 1.2 0.0 ± 0.0 (18) 1.2 ± 3.0 .04
  1. Values are means ± standard deviations. *P values are for group x time interactions. NS = not significant.