Table 2.

Groups of youth who reported having ever smoked a cigarette at a prevalence at least 10% higher or lower than the overall sample prevalence (N=9,504; overall sample prevalence=12.5%)

Prevalence (%)	Index (%)	Gender Identity	Sexual Identity	Race/ethnicity
High Prevalence Groups
27.7 n=47	220.5	Cis girl; Questioning/other; Trans girl; Missing	-	AI/AN/HPI; Other
19.4 n=248	154.3	Cis boy; NB+	Bisexual; Lesbian/Gay; Queer; Straight/Questioning/Other	Multiracial; Missing
17.9 n=1,777	142.7	Trans boy	-	-
17.0 n=647	135.6	Cis boy; NB+	Pansexual	-
Low Prevalence Groups
9.2 n=2,349	73.0	Cis girl; Questioning/other; Trans girl; Missing	-	Black/African American; White
6.1 n=392	48.8	NB+	Asexual	-
5.1 n=356	40.3	Cis boy; NB+	Bisexual; Lesbian/Gay; Queer; Straight/Questioning/Other	Asian; AI/AN/HPI; Black/African American
4.5 n=154	36.2	Cis girl; Questioning/other; Trans girl; Missing	-	Asian; Missing
0.0 n=63	0.0	Cis boy	Asexual	-

Note. The overall prevalence of having ever smoked cigarettes was 12.5%. Where cells have a “-”, nodes did not split by that particular indicator (racial identity, ethnic identity) and, thus, that node implicitly includes participants across all categories for that indicator. An index score of 100 indicates that cigarette smoking prevalence in a particular subset of the sample was the same as the overall sample prevalence. Index scores above and below 100 indicate higher or lower prevalence of smoking relative to the overall sample prevalence, respectively. For example, an index score of 220.5 signifies that cigarette smoking prevalence for this group is 2.2 times (or 120.5%) higher than the overall sample prevalence. AI/AN/HPI = American Indian, Alaska Native, or Native Hawaiian/Pacific Islander. Cis = cisgender. NB+ = gender nonconforming, gender fluid, or non-binary. Trans = transgender.