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. Author manuscript; available in PMC: 2026 Apr 16.
Published before final editing as: Health Educ Behav. 2026 Mar 22:10901981261426309. doi: 10.1177/10901981261426309

Table 1.

Characteristics of the QuaranTeen Health weighted baseline sample (n=1,803)

N(%) or mean (SD)

Age, years 15.28(1.34)

Sex
Female 1215(46.94%)
Male 571(52.27%)
Intersex 17(0.79%)

Grade
7th Grade 37(5.34%)
8th Grade 133(13.24%)
9th Grade 304(19.10%)
10th Grade 430(22.18%)
11th Grade 567(23.91%)
12th Grade 310(15.69%)
Currently enrolled in a GED Program 10(.34%)
Dropped Out 12(.20%)

Race
White 1179(63.08%)
Black or African-American 123(13.20%)
Asian 134(7.71%)
Native Hawaiian or other Pacific Islander 5(.21%)
Native American, American Indian or Alaskan Native 61(3.25%)
More than one race 136(5.89%)
Other 120(5.30%)
Do not want to answer 45(1.35%)

Ethnicity
Hispanic ethnicity 410(24.86%)
Not Hispanic ethnicity 1371(74.57%)
Do not want to answer 22(.57%)

Gender Identity
Cisgender girl 885(44.47%)
Cisgender boy 442(49.53%)
Transgender girl 40(.64%)
Transgender boy 91(.86%)
Indigenous/Cultural Gender minority 6(.25%)
Non-binary 146(2.39%)
Genderqueer 43(.68%)
Pangender 7(.06%)
Genderfluid 102(1.55%)
Agender 33(.57%)
Questioning 121(3.65%)
Other gender identity 35(1.42%)
Do not understand the question 62(4.71%)
Do not want to answer 18(1.27%)

Sexual Identity
Heterosexual 875(75.17%)
Gay 113(3.73%)
Lesbian 98(1.99%)
Bisexual 385(11.51%)
Pansexual 205(4.72%)
Demisexual 60(1.24%)
Queer 123(2.91%)
Asexual 119(6.32%)
Questioning/Unsure 198(8.86%)
Another Sexual Identity 66(2.07%)
Do not understand the question 262 (16%)
Do not want to answer 15(1.26%)

Sexual Behaviors
Any vaginal or anal sex 339(13.94%)
Any condom use at last vaginal or anal sex 195(57.90%)
Hormonal contraceptive use at last vaginal sex 98(40.21%)

COVID-19 Protective Behaviors
Any masking 975(53.80%)
≥ one COVID-19 vaccine shot 1398 (77.53%)

COVID-19 Protective Norms Scores (range 4-20)
Friends 12.62(4.34)
Family 12.63(4.09)

Abbreviation: SD, standard deviation. Note: Counts are observed counts and proportions are weighted.