Table 2 Self-reported psychosocial impact of covid-19 in adolescents with and without NSSI (N = 1602)

…affected me a lot

365 (74.8)

759 (68.1)

χ² [2] = 7.93, p = .02, Cramer’s V = .07

I agree/totally agree that the covid-19 pandemic has affected me so that:

I have felt more alone than before

271 (55.5)

429 (38.5)

χ² [2] = 44.10, p < .001, Cramer’s V = .17

It has become more difficult to discuss with friends if anything worries me

157 (32.2)

200 (18.0)

χ² [2] = 43.29, p < .001, Cramer’s V = .16

It has become more difficult to contact adults outside the family if anything worries me

156 (32.0)

189 (17.0)

χ² [2] = 57.78, p < .001, Cramer’s V = .19

My situation at home has become worse than before

102 (20.9)

79 (7.1)

χ² [2] = 83.00, p < .001, Cramer’s V = .23

Support and treatment have been interrupted or postponed

117 (24.0)

98 (8.8)

χ² [2] = 79.02, p < .001, Cramer’s V = .22

Home education has not worked out well for me

207 (42.2)

342 (30.7)

χ² [2] = 20.74, p < .001, Cramer’s V = .11