Non-suicidal self-injury and its association with identity formation in India and Belgium: A cross-cultural case-control study

Abstract

The aim of the present study was to compare different features of Non-Suicidal Self-Injury (NSSI) in India and Belgium. We also explored whether the strength of the association between NSSI and disturbances in identity formation—a risk factor that can increase vulnerability to NSSI—was similar in young adults from India and Belgium. Data regarding NSSI and identity formation were collected from 182 young adults in India (56% females, mean age = 21.5 years, SD = 3.70, range = 17–38 years). The Belgian data used for matching were derived from four existing datasets. Of the 182 Indian cases, 138 cases could be matched with the Belgian sample on age, gender, and lifetime prevalence of NSSI. Lifetime prevalence of NSSI in the Indian sample was found to be around 21.4%, with higher prevalence in females than in males. Comparison of features of NSSI in India and Belgium indicated that the age of onset of NSSI was higher in the Indian sample (around 17 years) than the Belgian sample (around 15 years). Additionally, self-bruising behavior was more commonly reported in India and scratching/cutting was more often reported in Belgium. Finally, the Belgian sample reported intra-personal functions of NSSI more often than the Indian sample. Moderation analysis indicated that the associations between NSSI and identity confusion/integration were stronger in the Belgian sample compared to the Indian sample. Higher self-knowledge was protective against NSSI in both the Indian and the Belgian sample.