Table 4

Results of the strengths and difficulties questionnaire for study children without motor disability

	Comparison group^a	Moderate encephalopathy^b	p Value (a–b)	Severe encephalopathy^c	p Value (a–c)	p Value (b–c)
Results are median (interquartile range) or number (%) as appropriate. Comparisons were performed using the Mann-Whitney U test. Some data were missing from the parental questionnaires for six children (three comparison, one moderate, two severe) and the teacher questionnaires for 14 children (five comparison, six moderate, three severe). p Values in bold indicate significant difference.
Parent report	n = 46	n = 31		n = 16
Total score	7 (4–10)	7 (5–14)		13.5 (6–19)
Normal	38 (82.6%)	23 (74.2%)	0.48	8 (50%)	0.02	0.08
Borderline	4 (8.7%)	3 (9.7%)		0 (–)
Abnormal	4 (8.7%)	5 (16.1%)		8 (50%)
Subscales
Emotional problems	1 (0.5–2)	2 (0–3)	0.67	2 (1–4)	0.09	0.21
Conduct problems	1 (0–2)	1 (0–3)	0.81	2 (1–4)	0.11	0.25
Hyperactivity	3 (2–4)	4 (2–5)	0.38	6.5 (3–10)	<0.01	0.03
Peer problems	1 (0–2)	1 (0–3)	0.94	1 (0–3.5)	0.86	0.83
Pro-social	8 (6–9)	8 (6–10)	0.96	8.5 (7.25–10)	0.55	0.51
Impact score	0 (0–0)	0 (0–1)	0.29	0 (0–2)	0.08	0.37
Teacher report	n = 44	n = 26		n = 15
Total score	5.5 (2–11)	6 (3.75–12)		14 (10–17)
Normal	34 (77.3%)	19 (73.1%)	0.55	6 (40.0%)	<0.01	0.01
Borderline	4 (9.1%)	4 (15.4%)		3 (20%)
Abnormal	6 (13.6%)	3 (11.5%)		6 (40%)
Subscales
Emotional problems	0 (0–3.75)	1 (0–2)	0.68	3 (2–6)	0.01	<0.01
Conduct problems	0 (0–1)	0 (0–1.25)	0.46	1 (0–3)	0.16	0.36
Hyperactivity	2 (0–4.75)	3 (1–7.5)	0.08	6 (2–9)	<0.01	0.10
Peer problems	1 (0–3)	1 (0–3)	0.63	2 (1–5)	0.09	0.04
Pro-social	8 (5–10)	7 (5–9.25)	0.48	6 (3–7)	0.02	0.11
Impact score	0 (0–0)	0 (0–1)	0.68	2 (0–3)	<0.01	<0.01