Table 5.

Collected general health variables and their percentage in the research group, study group, and control group and P-value

Variable	Research g % (n)	Study g % (n)	Control g % (n)	P
JIA*	0.3 (7)	0.2 (4)	0.1 (3)	0.648
Type I diabetes	0.7 (15)	0.2 (4)	0.5 (11)	0.089
Epilepsy	0.4 (9)	0.2 (4)	0.2 (5)	0.805
Sleep apnoea	0.2 (4)	0.2 (3)	<0.1 (1)	0.289
Cancer	0.1 (3)	0 (0)	0.1 (3)	0.092
Syndrome**	0.1 (3)	0.1 (2)	< 0.1 (1)	0.530
Tourette syndrome	0.1 (2)	0.1 (2)	0 (0)	0.145
ADHD	1.5 (31)	0.8 (16)	0.7 (15)	0.731
Asperger	0.2 (5)	<0.1 (1)	0.2 (4)	0.184
Autism	0.3 (6)	0.1 (2)	0.2 (4)	0.456
Speech problems	28.2 (587)	16.0 (333)	12.2 (254)	<0.001
Developmental disorders	1.7 (35)	0.8 (16)	0.9 (19)	0.7
Sleep problems	1.9 (39)	1.0 (20)	0.9 (19)	0.731
Mental health trait	8.0 (167)	4.1 (85)	3.9 (82)	0.527
Anxiety disorder	4.5 (93)	2.0 (41)	2.5 (52)	0.378
Mood disorder	1.0 (21)	0.7 (14)	0.3 (7)	0.095
Depression	3.9 (82)	1.6 (34)	2.3 (48)	0.190
Other psychosis	0.1 (3)	0.0 (1)	0.1 (2)	0.599
Substance abuse	0.6 (13)	0.3 (7)	0.3 (6)	0.702
Behavioural problems	2.6 (54)	1.5 (32)	1.1 (22)	0.110
Learning problems	2.7 (57)	1.4 (29)	1.3 (28)	0.722
Eating problems	4.5 (92)	2.3 (47)	2.2 (45)	0.619

All percentages are calculated relative to the entire research group. To adjust for the multiple testing, we set the statistical significance level to P < 0.05/22 = 0.0023.

*Juvenile rheumatoid arthritis.

**Tourette excluded.