Table 2. Annual Percentage Change in 12-Month Prevalence of Nonsuicidal Self-injury Among Sexual Minority and Heterosexual Youth (2005-2017).

Sexual Orientation	Parameter Estimate	Annual Percentage Change (95% CI)	P Value
Sexual identity
Sexual minority youth	−0.01	−1.33 (−3.52 to −0.92)	.19
Sexual minority youth, excluding unsure youtha	−0.01	−1.11 (−3.26 to 1.10)	.25
Heterosexual youth	−0.03	−2.51 (−4.75 to −0.21)	.04
Sexual behavior
Sexual minority youth	<−0.01	−0.20 (−2.54 to 2.19)	.84
Heterosexual youth	−0.02	−1.57 (−3.39 to 0.28)	.08

^a Sexual minorities included youth who self-identified as lesbian, gay, and bisexual; those unsure of their sexual identity were excluded.