Table 3.

Multivariate regression analyses.

Increased CPA frequency
Covariates included in analysis	Beta coefficient	p valuea	R-squared	Collinearity
Population density	0.1	<0.01	0.28	No
Increased percent CPA duration requiring HFNC or more
Covariates included in analysis	Beta coefficient	p valuea	R-squared	Collinearity
Percent pediatric type 1 DM	5.1	<0.01	0.83	No
Higher precipitation	8.3	<0.01	0.83	No
Increased CPA duration requiring intubation (MCV or HFOV)
Covariates included in analysis	Beta coefficient	p valuea	R-squared	Collinearity
Percent pediatric type 1 DM	4.6	<0.01	0.40	No

Abbreviations: CPA: COVID-19 positive admission; HFNC: high-flow nasal cannula; DM: diabetes mellitus; MCV: mechanical conventional ventilation; HFOV: high-frequency oscillatory ventilation. ^ap value < 0.05 was considered statistically significant.