Table 1.

Univariate and multivariate correlations between Google search volume for coronavirus disease 2019 (COVID-19) and cumulative number of searches for the most common symptoms of this disease in the US, between January 20, 2020 and November 8, 2020.

Symptoms	Univariate analysis	Multivariate analysis (β c3oefficient)
Chills	0.55 (95% CI, 0.29 to 0.74; p<0.001)	1.3; p=0.578
Cough	0.31 (95% CI, 0.00 to 0.56; p=0.048)	7.0; p<0.001
Diarrhea	0.56 (95% CI, 0.30 to 0.74; p<0.001)	5.3; p=0.098
Dizziness	0.14 (95% CI, -0.18 to 0.43; p=0.389)	–
Dyspnea	0.24 (95% CI, -0.08 to 0.51; p=0.139)	–
Fatigue	-0.09 (95% CI, -0.39 to 0.22; p=0.558)	–
Fever	0.57 (95% CI, 0.32 to 0.75; p<0.001)	1.9; p=0.508
Headache	0.77 (95% CI, 0.60 to 0.87; p<0.001)	4.2; p=0.366
Myalgia	0.12 (95% CI, -0.20 to 0.41; p=0.464)	–
Nausea	0.40 (95% Ci, 0.10 to 0.63; p=0.010)	3.1; p=0.296
Rhinorrhea	0.16 (95% CI, -0.16 to 0.44; p=0.331)	–
Smell loss	0.56 (95% CI, 0.31 to 0.74; p<0.001)	0.1; p=0.948
Sore throat	0.55 (95% CI, 0.30 to 0.74; p<0.001)	2.2; p=0.160
Sputum	0.55 (95% CI, 0.29 to 0.73; p<0.001)	1.7; p=0.017
Taste loss	0.50 (95% CI, 0.22 to 0.70; p=0.001)	0.1; p=0.942
Vomit	-0.17 (95% CI, -0.45 to 0.15; p=0.288)	–