Table 1.

Demographic and descriptive statistics

	Study 1, case–control study (N = 25,161)				Study 2, longitudinal study (N = 6,120)
		SH	SH+SU	Controls	SH	SH+SU	Controls
		n (%)	n (%)	n (%)	n (%)	n (%)	n (%)
Total		1,027 (4.1)	1,099 (4.4)	21,119 (83.9)	261 (4.3)	363 (5.9)	4,746 (77.6)
Female		835 (81.3)	935 (85.1)	9,833 (46.6)	210 (80.5)	298 (82.1)	2,555 (53.8)
Age at first contact	Mean (SD)	13.3 (2.7)	14.0 (2.0)	10.9 (3.8)	–	–	–
Length of contact	Mean (SD)	1.0 (1.1)	1.2 (1.2)	1.0 (1.1)	–	–	–
Follow‐up (years)	Median (Q1;Q3)	–	–	–	2.8 (1.9;3.7)	2.8 (1.9;3.7)	2.8 (1.9;3.7)

SH, Self‐harm; SU, Suicidality.