Table 3.

Group-wise comparative means and SDs on SDQ

SDQ Subscale*	Bully	Victim	Bully-Victim	Noninvolved	P**
Emotional Problems (n=2165)	3.49 (2.33)	4.23 (2.41)	4.29 (2.25)	3.72 (2.38)	<0.001
	0.686	0.009	<0.001	Reference
Conduct problems (n=2166)	3.22 (1.94)	3 (1.97)	3.61 (1.97)	2.97 (2.28)	<0.001
	0.51	0.99	<0.001	Reference
Hyperactivity (n=2165)	3.45 (2.34)	3.56 (2.39)	3.94 (2.19)	3.30 (2.47)	<0.001
	0.89	0.40	<0.001	Reference
Peer ProblemtZ s (n=2162)	3.36 (1.88)	3.70 (1.90)	3.86 (1.84)	3.32 (2.09)	<0.001
	0.99	0.02	<0.001	Reference
Prosocial (n=2174)	7.85 (2.12)	7.73 (2.02)	7.27 (2.13)	7.82 (2.21)	<0.001
	0.99	0.94	<0.001	Reference
Total Difficulty	13.53 (6.46)	14.45 (6.21)	15.71 (6.04)	13.26 (7.30)	<0.001
Score (n=2143)	0.97	0.04	<0.001	Reference

*The second row in each cell represent post hoc P value with reference to noninvolved. **P-value obtained using analysis of variance test. SDQ: Strengths and Difficulty Questionnaire