Bullying victimisation in adolescence

Periodical
EClinicalMedicine
Volume
41
Year
2021
Relates to study/studies
PISA 2018

Bullying victimisation in adolescence

Prevalence and inequalities by gender, socioeconomic status and academic performance across 71 countries

Abstract

Background: Bullying victimisation is of global importance due to its long-term negative consequences. We examined the prevalence of victimisation and its inequalities in 15-year-olds across 71 countries.

Methods: Data were from the Programme for International Student Assessment (March-August 2018). Students reported frequencies of relational, physical, and verbal victimisation during the last 12 months, which were analysed separately and combined into a total score. Prevalence of frequent victimisation (> a few times a month) was estimated, followed by mean differences in total score by gender, wealth and academic performance quintiles in each country. Meta-analyses were used to examine country differences.

Findings: Of 421,437 students included, 113,602 (30.4%) experienced frequent victimisation, yet this varied by country-from 9.3% (Korea) to 64.8% (Philippines). Verbal and relational victimisation were more frequent (21.4%, 20.9%, respectively) than physical victimisation (15.2%). On average, boys (vs girls +0.23SD, 95%CI: 0.22-0.24), students from the lowest wealth (vs highest +0.09SD, 0.08-0.10) and with lowest academic performance (vs highest +0.49SD, 0.48-0.50) had higher scores. However, there was substantial between -country heterogeneity in these associations (I2=85%-98%). Similar results were observed for subtypes of victimisation-except relational victimisation, where gender inequalities were smaller.

Interpretation: Globally, bullying victimisation was high, although the size, predominant subtype and strength of associations with risk factors varied by country. The large cross-country differences observed require further replication and empirical explanation, and suggest the need to and the large scope for reducing bullying victimisation and its inequity in the future.

Funding: Japan Foundation for Pediatric Research