Table 2.

Factors associated with being bullied

Factor	Crude odds ratio (95% CI)	Adjusted odds ratio (95% CI)
Age
≤12	0.98 (0.96–1.00)	1.29 (1.26–1.32)
13	0.92 (0.90–0.93)	1.04 (1.02–1.05)
14	1.23 (1.21–1.24)	1.20 (1.18–1.22)
15	0.95 (0.93–0.96)	0.79 (0.77–0.80)
16+	1	1
Sex
Male	1.21 (1.20–1.22)	1.21 (1.20–1.22)
Female	1	1
Loneliness
Yes	1.58 (1.56–1.59)	1.44 (1.42–1.45)
No	1	1
Worried
Yes	1.43 (1.42–1.45)	1.30 (1.29–1.32)
No	1	1
Sad/hopelessness
Yes	1.43 (1.41–1.44)	1.21 (1.19–1.22)
No	1	1
Had close friends
Yes	0.75 (0.74–0.76)	0.84 (0.83–0.86)
No	1	1
Smoked cigarettes
Yes	1.28 (1.26–1.29)	1.09 (1.08–1.11)
No	1	1
Drank alcohol
Yes	1.45 (1.43–1.46)	1.31 (1.29–1.32)
No	1	1
Ever been drunk
Yes	1.29 (1.28–1.31)	0.86 (0.84–0.87)
No	1	1
Missed classes
Yes	1.49 (1.47–1.52)	1.24 (1.22–1.27)
No	1	1
Parental supervision
Yes	0.70 (0.70–0.71)	0.80 (0.80–0.81)
No	1	1