. 2022 Jul 11;32(6):1051–1060. doi: 10.1007/s00787-022-02039-x

Table 1.

Demographic information and comparisons of samples collected before and after COVID pandemic began

Variable	Pre-pandemic sample (n = 696)	Pandemic sample (n = 206)	t test/χ²
Mean age (SD)	15.5 (0.99)	15.6 (1.17)	t(890) = − 1.71, p = 0.09
Gender Male Female Trans identifying Not specified	% 44.0 54.8 0.4 0.7	% 36.9 57.8 2.4 2.9	χ²(3) = 15.47, p = 0.001
Sexual orientation Heterosexual Gay/lesbian/homosexual Bisexual Not sure Not specified	% 88.4 1.6 4.7 2.9 2.5	% 71.6 4.9 12.7 4.4 6.4	χ²(4) = 36.62, p < 0.001
School year Freshman Sophomore Junior Senior	% 48.0 29.0 21.3 1.5	% 46.6 23.3 16.0 14.0	χ²(3) = 61.92, p < 0.001
Ethnicity Hispanic Non-Hispanic	% 5.5 94.5	% 7.3 92.7	χ²(1) = 0.90, p = 0.34
Race White/Caucasian Black/African American Native American Asian Multi-ethnic Not specified	% 86.0 4.0 0.1 3.2 5.1 1.6	% 80.7 5.4 0.0 2.0 9.4 2.5	χ²(5) = 7.83, p = 0.17

Variable

Pre-pandemic sample
(n = 696)

Pandemic sample
(n = 206)

t test/χ²

Mean age (SD)

15.5 (0.99)

15.6 (1.17)

t(890) = − 1.71, p = 0.09

Gender

Male

Female

Trans identifying

Not specified

44.0

54.8

0.4

0.7

36.9

57.8

2.4

2.9

χ²(3) = 15.47, p = 0.001

Sexual orientation

Heterosexual

Gay/lesbian/homosexual

Bisexual

Not sure

Not specified

88.4

1.6

4.7

2.9

2.5

71.6

4.9

12.7

4.4

6.4

χ²(4) = 36.62, p < 0.001

School year

Freshman

Sophomore

Junior

Senior

48.0

29.0

21.3

1.5

46.6

23.3

16.0

14.0

χ²(3) = 61.92, p < 0.001

Ethnicity

Hispanic

Non-Hispanic

5.5

94.5

7.3

92.7

χ²(1) = 0.90, p = 0.34

Race

White/Caucasian

Black/African American

Native American

Asian

Multi-ethnic

Not specified

86.0

4.0

0.1

3.2

5.1

1.6

80.7

5.4

0.0

2.0

9.4

2.5

χ²(5) = 7.83, p = 0.17

P-values in bold are significant