Table 3.

Age-specific and sex-specific method of NSSI among Chinese students.

Top three NSSI methods
Overall students (N = 52)
scratching (N = 30), hitting (N = 27), biting (N = 22), pulling hair (N = 20), cutting (N = 19), pinching (N = 18), banging (N = 9), interfering (N = 3), carving (N = 2), inserting (N = 2), burning, punching, stabbing, striking
Middle school (N = 14)
scratching (N = 9), biting (N = 9), cutting (N = 6), hitting (N = 5), pinching (N = 4), pulling hair (N = 4), interfering (N = 2), banging, carving
High school (N = 11)
scratching (N = 9), cutting (N = 5), pulling hair (N = 5), biting (N = 4), hitting (N = 3), pinching, banging, carving, electrocuting, strangling
College (N = 9)
scratching (N = 5), hitting (N = 5), biting (N = 4), pulling hair (N = 4), pinching (N = 3), banging (N = 3), cutting (N = 2), punching (N = 2), inserting, dripping acid, carving, ripping
Female (N = 24)
scratching (N = 12), biting (N = 11), cutting (N = 10), pinching (N = 9), hitting (N = 8), pulling hair (N = 8), interfering (N = 3), burning (N = 3), punching (N = 2), carving (N = 2), banging (N = 2), inserting, pricking, ripping, strangling, striking, stabbing
Male (N = 24)
banging (N = 12), hitting (N = 12), scratching (N = 10), biting (N = 9), pulling hair (N = 9), cutting (N = 5), pinching (N = 4), punching (N = 4), burning (N = 2), stabbing (N = 2), electrocuting, exposing heat/hot, ingesting, interfering, ripping, rubbing, strangling, dripping acid, carving