Characteristic	0 N = 14,035,394 (95% CI 95% CI)¹	1 N = 8,366,536 (95% CI 95% CI)¹	p-value²
The percentage of all students who reported being in 6th, 7th, or 8th grade (middle school), or in 9th, 10th, 11th, or 12th grade (high school), n (%)			0.3
1	5,658,918 (40.41%) (95% CI 32.72%, 48.60%)	3,646,286 (43.60%) (95% CI 34.77%, 52.87%)
2	8,344,007 (59.59%) (95% CI 51.40%, 67.28%)	4,715,905 (56.40%) (95% CI 47.13%, 65.23%)
Unknown	32,469	4,345
race_cat, n (%)			<0.001
asian/other	843,345 (6.15%) (95% CI 4.798%, 7.853%)	917,957 (11.12%) (95% CI 8.518%, 14.38%)
black	1,591,378 (11.61%) (95% CI 9.307%, 14.38%)	1,411,755 (17.10%) (95% CI 14.41%, 20.17%)
hispanic	3,038,943 (22.16%) (95% CI 18.66%, 26.12%)	2,779,691 (33.66%) (95% CI 29.96%, 37.57%)
white	8,237,278 (60.08%) (95% CI 54.97%, 64.98%)	3,148,031 (38.12%) (95% CI 34.65%, 41.72%)
Unknown	324,450	109,103
The percentage of all students who reported being either female or male, n (%)			<0.001
1	6,494,988 (46.50%) (95% CI 43.97%, 49.05%)	4,555,820 (54.67%) (95% CI 51.56%, 57.73%)
2	7,472,355 (53.50%) (95% CI 50.95%, 56.03%)	3,778,151 (45.33%) (95% CI 42.27%, 48.44%)
Unknown	68,051	32,564
sex_ori, n (%)			<0.001
LGBTQ	1,493,563 (11.52%) (95% CI 9.972%, 13.28%)	1,227,507 (16.05%) (95% CI 13.83%, 18.54%)
straight	8,404,259 (64.84%) (95% CI 61.66%, 67.89%)	4,882,092 (63.82%) (95% CI 60.47%, 67.04%)
unsure	3,063,912 (23.64%) (95% CI 21.13%, 26.35%)	1,540,193 (20.13%) (95% CI 18.00%, 22.45%)
Unknown	1,073,660	716,744
gen_idn, n (%)			0.2
cisgender	11,182,468 (85.85%) (95% CI 10.12%, 13.70%)	6,741,708 (87.95%) (95% CI 8.459%, 11.55%)
Non-cisgender	307,249 (2.36%) (95% CI 83.88%, 87.61%)	165,289 (2.16%) (95% CI 85.93%, 89.71%)
unsure	1,536,351 (11.79%) (95% CI 1.740%, 3.191%)	758,725 (9.90%) (95% CI 1.598%, 2.903%)
Unknown	1,009,325	700,813
psy_discat, n (%)			<0.001
mild	2,618,850 (19.44%) (95% CI 17.82%, 21.17%)	2,191,467 (27.29%) (95% CI 24.42%, 30.35%)
moderate	1,190,039 (8.83%) (95% CI 8.085%, 9.643%)	1,515,640 (18.87%) (95% CI 17.41%, 20.43%)
none	8,555,941 (63.50%) (95% CI 61.36%, 65.59%)	2,912,992 (36.27%) (95% CI 33.68%, 38.94%)
severe	1,108,083 (8.22%) (95% CI 7.241%, 9.329%)	1,411,617 (17.58%) (95% CI 15.46%, 19.92%)
Unknown	562,480	334,819
tob_add, n (%)			0.030
0	750,340 (77.28%) (95% CI 18.03%, 28.20%)	572,291 (67.16%) (95% CI 25.95%, 40.56%)
1	220,584 (22.72%) (95% CI 71.80%, 81.97%)	279,897 (32.84%) (95% CI 59.44%, 74.05%)
Unknown	13,064,470	7,514,347
curanytob, n (%)			0.002
0	13,064,470 (93.08%) (95% CI 5.694%, 8.381%)	7,497,443 (89.72%) (95% CI 8.560%, 12.29%)
1	970,924 (6.92%) (95% CI 91.62%, 94.31%)	858,612 (10.28%) (95% CI 87.71%, 91.44%)
Unknown	0	10,481
curanyfreq, n (%)			0.3
0	715,875 (75.86%) (95% CI 18.68%, 30.59%)	672,621 (80.71%) (95% CI 13.86%, 26.20%)
1	227,786 (24.14%) (95% CI 69.41%, 81.32%)	160,761 (19.29%) (95% CI 73.80%, 86.14%)
Unknown	13,091,732	7,533,154
polyscore_cat, n (%)			0.028
0	13,537,438 (97.88%) (95% CI 1.583%, 2.839%)	7,990,370 (96.72%) (95% CI 2.564%, 4.188%)
1	293,491 (2.12%) (95% CI 97.16%, 98.42%)	270,979 (3.28%) (95% CI 95.81%, 97.44%)
Unknown	204,465	105,187
age_cat, n (%)			0.2
12-14	5,705,890 (45.02%) (95% CI 37.99%, 52.26%)	3,676,060 (47.18%) (95% CI 39.89%, 54.61%)
15-17	6,486,180 (51.18%) (95% CI 43.89%, 58.42%)	3,735,813 (47.95%) (95% CI 40.09%, 55.91%)
9-11	481,229 (3.80%) (95% CI 2.801%, 5.129%)	378,886 (4.86%) (95% CI 3.526%, 6.672%)
Unknown	1,362,094	575,777
¹ CI = Confidence Interval
² Pearson’s X^2: Rao & Scott adjustment