Table 4. Association between online experiences and past year self-harm: Imputed data.

	OR (95% CI) Unadjusted	OR (95% CI) Adjusted for SEP and hours online	OR (95% CI) Additionally adjusted for previous mental health problems
Unmoderated chatrooms
Males	1.56 (0.68, 3.54)	1.29 (0.52, 3.20)	1.30 (0.53, 3.20)
Females	1.32 (0.81, 2.15)	1.23 (0.74, 2.04)	1.09 (0.65, 1.84)
Being bullied online
Males	1.75 (0.39, 7.77)	1.55 (0.35, 6.93)	1.59 (0.35, 7.26)
Females	3.01 (1.82, 4.96)	2.96 (1.78, 4.92)	2.42 (1.41, 4.15)
Unwanted sexual comments
Males	1.20 (0.41, 3.56)	1.03 (0.33, 3.28)	1.03 (0.33, 3.27)
Females	2.27 (1.44, 3.58)	2.19 (1.38, 3.48)	1.88 (1.14, 3.08)
Coming across pornography
Males	1.46 (0.40, 5.34)	1.20 (0.31, 4.60)	1.21 (0.32, 4.60)
Females	2.48 (1.52, 4.06)	2.47 (1.50, 4.06)	2.14 (1.28, 3.58)
Unwanted sexual material
Males	1.00 (0.46, 2.14)	0.96 (0.43, 2.13)	0.96 (0.43, 2.13)
Females	2.34 (1.48, 3.70)	2.35 (1.48, 3.70)	1.95 (1.20, 3.16)
Violent/gruesome material
Males	1.26 (0.62, 2.54)	1.05 (0.50, 2.20)	1.05 (0.49, 3.39)
Females	2.15 (1.37, 3.39)	2.14 (1.36, 3.72)	1.78 (1.11, 2.85)
Racist/hateful material
Males	1.10 (0.51, 2.37)	0.91 (0.41, 2.02)	0.91 (0.41, 2.05)
Females	1.64 (1.06, 2.55)	1.65 (1.06, 2.57)	1.38 (0.86, 2.20)
Meeting face to face
Males	2.38 (1.03, 5.52)	2.16 (0.90, 5.20)	2.18 (0.89, 5.32)
Females	2.00 (1.21, 3.32)	1.89 (1.14, 3.13)	1.51 (0.88, 2.58)
Personal information disclosed
Males	0.82 (0.28, 2.38)	0.81 (0.27, 2.43)	0.81 (0.72, 2.91)
Females	1.45 (0.71, 2.91)	1.41 (0.69, 2.88)	1.10 (0.51, 2.37)
Junk mail /unwanted email
Males	1.01 (0.22, 4.73)	0.72 (0.14, 3.65)	0.71 (0.14, 3.66)
Females	3.02 (0.70, 12.9)	2.95 (0.68,12.8)	2.05 (0.45, 9.26)