TABLE 2

Involvement in Bullying at Elementary School and Specific or Any Parasomnia at Age 12 to 13 Years; Unadjusted Analysis

Involvement in BullyingNightmare, OR (95% CI)Night Terror, OR (95% CI)Sleepwalking, OR (95% CI)Any Parasomnia, OR (95% CI)
Child report (age 8 y)(n = 5598)(n = 5598)(n = 5598)(n = 5601)
 Neutralreferencereferencereferencereference
 Pure victim1.32 (1.16–1.50)a1.42 (1.17–1.72)a1.25 (1.06–1.48)a1.36 (1.21–1.53)a
 Pure bully0.90 (0.47–1.70)0.62 (0.19–2.00)1.05 (0.47–2.33)1.04 (0.60–1.80)
 Bully/victim1.24 (0.98–1.59)1.47 (1.05–2.07)a1.66 (1.25–2.20)a1.45 (1.17–1.80)a
Child report (age 8 y)(n = 1861)(n = 1861)(n = 1861)(n = 1863)
 Pure victimreferencereferencereferencereference
 Pure bully0.68 (0.36–1.29)0.44 (0.14–1.41)0.84 (0.38–1.87)0.77 (0.44–1.33)
Child report (age 8 y)(n = 2179)(n = 2179)(n = 2179)(n = 2181)
 Pure victimreferencereferencereferencereference
 Bully/victim0.94 (0.74–1.21)1.04 (0.73–1.47)1.32 (0.98–1.78)1.07 (0.85–1.34)
Child report (age 8 y)(n = 434)(n = 434)(n = 434)(n = 434)
 Pure bullyreferencereferencereferencereference
 Bully/victim1.39 (0.71–2.73)2.37 (0.71–7.90)1.58 (0.69–3.63)1.39 (0.78–2.48)
Child report (age 10 y)(n = 6132)(n = 6133)(n = 6133)(n = 6136)
 Neutralreferencereferencereferencereference
 Pure victim1.72 (1.49–1.99)a1.59 (1.29–1.95)a1.35 (1.12–1.62)a1.77 (1.55–2.01)a
 Pure bully1.02 (0.52–1.99)0.97 (0.35–2.71)0.83 (0.33–2.10)1.15 (0.65–2.06)
 Bully/victim1.62 (1.27–2.06)a1.59 (1.13–2.24)a1.16 (0.83–1.60)1.60 (1.28–2.00)a
Child report (age 10 y)(n = 1182)(n = 1182)(n = 1182)(n = 1183)
 Pure victimreferencereferencereferencereference
 Pure bully0.59 (0.30–1.17)0.61 (0.22–1.72)0.62 (0.24–1.58)0.65 (0.36–1.18)
Child report (age 10 y)(n = 1468)(n = 1468)(n = 1468)(n = 1469)
 Pure bullyreferencereferencereferencereference
 Bully/victim0.94 (0.72–1.22)1.00 (0.70–1.45)0.86 (60–1.22)0.90 (0.71–1.16)
Child report (age 10 y)(n = 386)(n = 386)(n = 386)(n = 386)
 Pure bullyreferencereferencereferencereference
 Bully/victim1.59 (0.78–3.23)1.64 (0.56–4.80)1.39 (0.53–3.69)1.38 (0.75–2.56)
Chronicity of victimization(n = 5337)(n = 5337)(n = 5337)(n = 5340)
 Nonereferencereferencereferencereference
 Unstable1.34 (1.17–1.54)a1.32 (1.07–1.62)a1.15 (0.96–1.37)1.29 (1.14–1.46)a
 Stable1.98 (1.66–2.37)a1.95 (1.51–2.51)a1.67 (1.33–2.09)a2.16 (1.83–2.55)a
  • The reference group in all analyses consists of participants who are not involved in bullying behavior.

  • a Indicates significant associations.