Table 1. Descriptive Information of Participants at T1 (n = 143) and Those Participating at All Assessment Points (n = 43).

	Sample at T1 (n = 143)		Sample Responding at All Assessment Points (n = 43)		Sign. Diff. Dropoutsa
	n	%	n	%	Chi-square	p Value
Gender Male Female	114 29	79.7% 20.3%	35 8	81.4 18.6	0.11	.74
Marital statusb Married/registered partner Single Divorced/separated	25 101 16	17.6% 71.1% 11.3%	9 29 5	20.9% 67.4% 11.6%	0.51	.77
Educationb Elementary school Intermediate-level education Upper-secondary education Higher education, up to 4 years Higher education, more than 4 years	11 50 31 38 12	7.7% 35.2% 21.8% 26.8% 8.5%	2 12 5 18 6	4.7% 27.9% 11.6% 41.9% 14.0%	12.10	.02
Unemployed Yes No	16 127	11.2% 88.8%	3 40	7.0% 93.0%	1.10	.30
Violence categoryc Assault Inflicting bodily harm	45 98	31.5 68.5%	15 28	34.9 65.1%	0.33	.56
Victim’s perception of threat Felt life was at risk Fear of severe physical injury Understood danger afterward Did not perceive as dangerous	50 25 15 28	42.4% 21.2% 12.7% 23.7%	16 9 4 9	42.1% 23.7% 10.5% 23.7%	0.38	.95
Age (years at T1)	Mean 31	SD Range 11.0 18–75

Note. ^aSignificance test of the difference between the sample who participated at all assessment points (n = 43) and dropouts at any time point (n = 100). ^bInformation is missing for one participant. ^cThe injuries of each participant were classified into these legal categories at T1 in cooperation with the police and in accordance with a judgment based on the level of physical injury and the intention of the perpetrator to cause harm (where physical injury is the most important criterion) (The Norwegian General Civil Penal Code (Straffeloven) Sections 228 and 229) . The assault category includes less serious physical injuries, often combined with threats of more severe physical injury. The victims of inflicted bodily harm include people with more serious physical injuries, ranging from near-fatal injuries to bone fractures or other substantial damage.