Among the 62 children who self harmed at age 12, 35 (56%) had been victimised by bullying, according to either the mother or child informant. This yields a population attributable fraction suggesting that if bullying could have been eradicated (and everything else remained the same), a sizeable proportion of the cases of self harm could potentially have been prevented (42.8%, 95% confidence interval 23.1% to 57.5%).
