. Author manuscript; available in PMC: 2018 Jan 8.

Published in final edited form as: Psychol Sex Orientat Gend Divers. 2016 Dec;3(4):386–396. doi: 10.1037/sgd0000188

Table 3.

Frequencies of School Bullying and Violence-Related Experiences and Adjusted Odds Ratios of Changes Since Initial Survey Wave, by Gender and Sexual Orientation

		Frequencies				Change 1999/01 – 2003/05	Change 1999/01 – 2007/09	Change 1999/01 – 2011/13
		1999/2001	2003/2005	2007/2009	2011/2013	AOR (95% CI)	AOR (95% CI)	AOR (95% CI)
Threatened or Injured with Weapon at School (Past 12 months)
Male	Heterosexual	10.1%	7.1%	7.4%	6.4%	0.69 (0.57, 0.83) ^***	0.66 (0.55, 0.80) ^***	0.57 (0.46, 0.71) ^***
	Bisexual	23.0%	20.0%	36.2%	18.3%	0.83 (0.36, 1.91)	1.56 (0.91, 2.67)	0.66 (0.33, 1.33)
	Gay	44.5%	20.3%	29.8%	17.2%	0.23 (0.13, 0.43) ^***	0.36 (0.18, 0.70) ^**	0.18 (0.10, 0.35) ^***
Female	Heterosexual	5.0%	3.2%	2.9%	2.9%	0.63 (0.48, 0.83) ^***	0.51 (0.38, 0.69) ^***	0.55 (0.43, 0.76) ^***
	Bisexual	12.1%	9.5%	6.2%	11.0%	0.64 (0.31, 1.32)	0.37 (0.17, 0.82) ^*	0.64 (0.47, 1.49)
	Lesbian	25.5%	24.1%	29.4%	17.8%	0.62 (0.29, 1.32)	0.70 (0.51, 0.97) ^*	0.54 (0.29, 1.00) ^*
Skipped School Because Felt Unsafe (Past 30 days)
Male	Heterosexual	5.7%	3.7%	3.6%	3.5%	0.64 (0.50, 0.83) ^***	0.59 (0.43, 0.82) ^**	0.59 (0.42, 0.83) ^**
	Bisexual	22.4%	17.6%	16.3%	5.9%	0.83 (0.43, .60)	0.58 (0.32, 1.10)	0.19 (0.08, 0.44)^***
	Gay	37.3%	19.9%	23.0%	15.8%	0.35 (0.20, 0.62) ^***	0.59 (0.34, 1.00)	0.29 (0.17, 0.48) ^***
Female	Heterosexual	7.4%	3.5%	3.2%	3.5%	0.43 (0.30, 0.63) ^***	0.39 (0.27, 0.58) ^***	0.44 (0.30, 0.63) ^***
	Bisexual	11.3%	11.5%	7.5%	11.0%	1.06 (0.53, 2.13)	0.55 (0.30, 1.03)	0.91 (0.47, 1.79)
	Lesbian	24.0%	36.6%	22.0%	14.8%	1.86 (0.70, 4.96)	0.81 (0.30, 2.15)	0.63 (0.18, 2.13)
Physical Fighting in School (Past 12 months)
Male	Heterosexual	16.7%	13.1%	11.0%	7.5%	0.75 (0.64, 0.88) ^***	0.58 (0.49, 0.69) ^***	0.39 (0.32, 0.48) ^***
	Bisexual	32.0%	24.9%	32.9%	27.7%	0.66 (0.35, 1.24)	0.98 (0.55, 1.74)	0.70 (0.44, 1.23)
	Gay	50.5%	22.6%	29.3%	7.8%	0.26 (0.20, 0.35) ^***	0.43 (0.29, 0.66) ^***	0.09 (0.02, 0.37) ^**
Female	Heterosexual	7.1%	5.9%	5.1%	3.0%	0.82 (0.64, 1.04)	0.71 (0.54, 0.94)	0.41 (0.31, 0.55) ^***
	Bisexual	15.2%	17.9%	14.0%	6.2%	1.02 (0.58, 1.81)	0.68 (0.36, 1.29)	0.24 (0.12, 0.47) ^***
	Lesbian	41.3%	32.3%	24.5%	15.8%	0.70 (0.29, 1.72)	0.35 (0.25, 0.49) ^***	0.27 (0.13, 0.55) ^**
Carried Weapon in School (Past 30 days)
Male	Heterosexual	9.3%	7.8%	6.1%	4.5%	0.84 (0.70, 1.01)	0.59 (0.47, 0.74) ^***	0.44 (0.34, 0.57) ^***
	Bisexual	23.2%	19.6%	15.75	17.8%	0.76 (0.35, 1.62)	0.60 (0.24, 1.54)	0.49 (0.29, 0.81) ^**
	Gay	41.4%	14.1%	18.3%	8.1%	0.15 (0.10, 0.24) ^***	0.24 (0.15, 0.37) ^***	0.08 (0.04, 0.14) ^***
Female	Heterosexual	2.0%	2.0%	1.6%	1.2%	1.04 (0.70, 1.54)	0.75 (0.48, 1.17)	0.59 (0.36, 0.97) ^*
	Bisexual	4.0%	5.9%	5.6%	5.4%	1.43 (0.60, 3.10)	1.26 (0.67, 2.74)	1.09 (0.47, 2.50)
	Lesbian	25.5%	33.8%	21.2%	15.7%	1.85 (1.35, 2.52) ^***	0.69 (0.37, 1.27)	0.43 (0.11, 1.62)
							Change 2003/05 – 2007–09	Change 2003/05 – 2011/13
Was Bullied at School (Past 12 months)
Male	Heterosexual		20.5%	18.3%	14.6%		0.84 (0.73, 0.98) ^*	0.68 (0.57, 0.81) ^***
	Bisexual	NA	45.4%	53.1%	28.8%	NA	0.90 (0.49, 1.63)	0.35 (0.21, 0.59) ^***
	Gay		47.7%	44.9%	27.0%		0.90 (0.51, 1.59)	0.36 (0.21–0.63) ^***
Female	Heterosexual		23.4%	19.2%	17.4%		0.76 (0.66, 0.88) ^***	0.70 (0.60–0.88) ^***
	Bisexual	NA	42.9%	36.2%	41.0%	NA	0.72 (0.45, 1.16	0.91 (0.59, 1.40)
	Lesbian		47.1%	39.4%	22.4%		0.58 (0.21, 1.66)	0.31 (0.09, 1.12)

Note. AOR = Odds Ratio, adjusted for age and ethnicity;

CI = 95% Confidence Interval

p < .05,

^**

p < .01,

^***

p < .001.

NA = data not available