Table 1.

Descriptive information on mental health symptoms, stressful life events and wetting in the imputed sample

	Total (n = 6408)		Males (n = 3143)		Females (n = 3265)		Sex differences
	%	SE	%	SE	%	SE	OR (95% CI)	p
Age 7
Separation anxiety	6.59	0.31	6.84	0.45	6.34	0.43	0.93 (0.77, 1.12)	0.417
Phobia	11.56	0.40	10.45	0.55	12.62	0.58	1.21 (1.05, 1.38)	0.007
Social anxiety	5.13	0.28	6.05	0.43	4.25	0.36	0.70 (0.57, 0.87)	0.001
PTSD	2.99	0.21	2.77	0.29	3.20	0.31	1.16 (0.87, 1.53)	0.310
OCD	7.12	0.33	7.90	0.49	6.36	0.43	0.80 (0.67, 0.96)	0.018
GAD	8.03	0.34	8.32	0.50	7.74	0.47	0.93 (0.79, 1.10)	0.394
Depression	11.12	0.40	10.21	0.55	12.00	0.58	1.17 (1.02, 1.35)	0.026
ADHD	13.13	0.42	16.54	0.67	9.86	0.53	0.60 (0.52, 0.68)	< 0.001
ODD	5.24	0.28	6.89	0.45	3.66	0.33	0.53 (0.43, 0.66)	< 0.001
Conduct disorder	5.85	0.30	6.49	0.44	5.22	0.39	0.80 (0.66, 0.98)	0.031
Age 7–8
Stressful life events	17.77	0.52	17.12	0.74	18.40	0.73	1.08 (0.96, 1.21)	0.216
Age 9
Wetting (day or night)	4.53	0.29	4.92	0.43	4.16	0.38	0.84 (0.66, 1.09)	0.187

PTSD post-traumatic stress disorder, OCD obsessive–compulsive disorder, GAD generalised anxiety disorder, ADHD attention-deficit hyperactivity disorder, ODD oppositional defiant disorder, SE standard error