Table 3 Mean scores and standard deviation (SD) and linear mixed model results for mean differences in behaviors towards mask wearing by characteristic and time-interactions

Race and ethnicity

Black

Asian

Latinx

Other

White ^a

3.39 (1.07)

3.39 (0.99)

3.35 (0.99)

3.23 (1.02)

2.74 (0.91)

3.19 (1.04)

3.18 (0.95)

3.16 (1.00)

3.06 (1.01)

2.59 (0.88)

0.64 (0.08)

0.69 (0.03)

0.62 (0.04)

0.49 (0.07)

0.48, 0.80

0.63, 0.76

0.54, 0.70

0.36, 0.64

< 0.0001

< 0.0001

< 0.0001

< 0.0001

-0.08 (0.09)

-0.01 (0.04)

-0.08 (0.04)

-0.03 (0.08)

-0.25, 0.09

-0.08, 0.06

-0.17, 0.01

-0.18, 0.13

0.35

0.82

0.07

0.73

Sex

Female

Male ^a

3.11 (0.98)

3.09 (1.05)

2.93 (0.95)

2.89 (1.03)

0.01 (0.03)

-0.05, 0.01

0.75

0.02 (0.03)

-0.04, 0.09

0.50

Age Group (years)

18–21

22–24

25–31

32–85 ^a

2.94 (1.03)

3.08 (1.02)

3.07 (0.97)

3.23 (0.99)

2.68 (0.98)

2.82 (0.95)

2.93 (0.96)

3.09 (0.98)

-0.27 (0.06)

-0.15 (0.06)

-0.24 (0.05)

-0.29, -0.15

-0.27, -0.05

-0.32, -0.15

< 0.0001

0.01

< 0.0001

-0.05 (0.07)

0.04 (0.06)

0.10 (0.05)

-0.17, 0.08

-0.08, 0.16

0.001, 0.19

0.48

0.54

0.05

Division

Student

Staff/faculty ^a

3.02 (1.01)

3.22 (0.98)

2.78 (0.96)

3.10 (0.97)

-0.01 (0.05)

-0.10, 0.09

0.75

-0.22 (0.05)

-0.32, -0.12

< 0.0001

Political affiliation

Republican

Independent

Something else

Democrat ^a

2.98 (1.16)

3.13 (1.10)

3.11 (1.05)

3.11 (0.96)

2.72 (1.15)

2.87 (1.05)

2.93 (0.98)

2.95 (0.94)

-0.09 (0.06)

0.04 (0.04)

0.02 (0.06)

-0.21, 0.03

-0.04, 0.11

-0.10, 0.15

0.13

0.34

0.74

-0.16 (0.07)

-0.08 (0.04)

0.07 (0.07)

-0.28, -0.03

-0.16, -0.002

-0.07, 3.09

0.02

0.04

0.35

Had COVID-19

No

Yes

3.14 (0.99)

2.98 (1.04)

2.97 (0.96)

2.75 (1.04)

-0.06 (0.04)

-0.14, 0.01

0.08

-0.12 (0.04)

-0.19, -0.04

0.004

Time ^b

-0.16 (0.05)

-0.23, -0.08

< 0.0001