Table 2.

Logistic regression models predicting mask wearing during gatherings, among participants who gathered with non-household members at Thanksgiving, 2020 (n = 9560) and over the winter holiday, 2020–2021 (n = 18592)

Variable	Thanksgiving		Winter holiday
	Odds ratio (95% CI)	p-value	Odds ratio (95% CI)	p-value
Sex (men vs. women)	1.13 (1.02, 1.24)	0.2503	1.12 (1.01, 1.23)	0.0258
Age group
Age < 30 vs.  ≥ 70 years	0.38 (0.3, 0.47)	< 0.0001	0.36 (0.28, 0.45)	< 0.0001
Age 30–39 vs.  ≥ 70 years	0.42 (0.35, 0.49)	< 0.0001	0.41 (0.35, 0.49)	< 0.0001
Age 40–49 vs.  ≥ 70 years	0.49 (0.41, 0.57)	< 0.0001	0.49 (0.41, 0.58)	< 0.0001
Age 50–59 vs.  ≥ 70 years	0.64 (0.55, 0.75)	< 0.0001	0.63 (0.54, 0.74)	< 0.0001
Age 60–69 vs.  ≥ 70 years	0.73 (0.62, 0.85)	0.0028	0.72 (0.61, 0.84)	< 0.0001
Study site
Atrium vs. MedStar	0.61 (0.47, 0.78)	< 0.0001	0.6 (0.46, 0.77)	< 0.0001
New Hanover vs. MedStar	0.76 (0.51, 1.15)	0.1466	0.76 (0.5, 1.15)	0.1911
Wake Forest vs. MedStar	0.68 (0.53, 0.87)	< 0.0001	0.66 (0.52, 0.85)	0.0013
WakeMed vs. MedStar	0.78 (0.56, 1.10)	0.0504	0.7 0(0.49, 1.00)	0.0520
Race/ethnicity
Non-Hispanic black or African American vs non-Hispanic white	2.71 (2.11, 3.48)	< 0.0001	2.54 (1.96, 3.28)	< 0.0001
Hispanic vs non-Hispanic White	1.45 (1.08, 1.96)	0.1604	1.43 (1.06, 1.93)	0.0208
Other vs non-Hispanic white	1.38 (1.09, 1.76)	0.2359	1.36 (1.06, 1.75)	0.0161
Healthcare worker (Y vs. N)	1.31 (1.18, 1.44)	< 0.0001	1.31 (1.19, 1.45)	< 0.0001
Pre-gathering COVID-19 test (Y vs. N)	1.23 (1.09, 1.39)	0.1449	1.25 (1.1, 1.42)	0.0006

Based on separate logistic regression models at Thanksgiving and the winter holidays, adjusted for all variables listed