Table 2.

Associations between symptoms and infection rate in the 919 study participants.

CoV-2 infected—no.
Symptom —no.		Yes	No	Odds ratio [0.95 CI]	p-valuea	Odds ratio [0.95 CI]	p-valueb
Loss of taste	Yes	37	15	17.44 [8.71; 34.91]	<0.001	17.01 [8.49; 34.10]	<0.001
	No	100	764
Loss of smell	Yes	31	11	19.54 [9.03; 42.30]	<0.001	19.06 [8.72; 41.68]	<0.001
	No	106	767
Fever	Yes	33	47	4.63 [2.70; 7.94]	<0.001	4.94 [2.87; 8.50]	<0.001
	No	105	732
Head ache	Yes	49	148	2.28 [1.47; 3.54]	0.002	2.28 [1.46; 3.56]	0.003
	No	88	631
Cough	Yes	71	205	2.77 [1.90; 4.06]	<0.001	2.81 [1.92; 4.11]	<0.001
	No	67	575
Nose congestion	Yes	59	205	1.90 [1.27; 2.86]	0.013	1.91 [1.28; 2.85]	0.010
	No	75	576
Sore throat	Yes	42	144	1.96 [1.27; 3.02]	0.014	1.92 [1.25; 2.96]	0.017
	No	93	634
Shortness of breath	Yes	12	34	2.08 [1.07; 4.06]	0.127	1.98 [1.01; 3.91]	0.191
	No	126	741
Other respiratory symptoms	Yes	14	55	1.51 [0.82; 2.78]	0.556	1.49 [0.80; 2.77]	0.640
	No	121	716
Fatigue	Yes	59	148	3.05 [2.01; 4.63]	<0.001	2.99 [1.97; 4.56]	<0.001
	No	78	633
Sweats and chills	Yes	40	76	3.74 [2.31; 6.06]	<0.001	3.74 [2.31; 6.07]	<0.001
	No	97	700
Muscle and joint ache	Yes	34	90	2.46 [1.49; 4.08]	0.004	2.42 [1.46; 4.00]	0.005
	No	103	688
Stomach pain	Yes	6	45	0.64 [0.26; 1.53]	0.623	0.62 [0.26; 1.50]	0.640
	No	131	735
Nausea and vomiting	Yes	9	35	1.46 [0.50; 4.29]	0.623	1.29 [0.47; 3.56]	0.640
	No	128	744
Chest tightness	Yes	19	47	2.38 [1.36; 4.16]	0.014	2.32 [1.31; 4.11]	0.019
	No	118	732

Missing and unknown values in the symptom variables were listwise deleted; p-values were corrected for multiplicity using the Bonferroni–Holm procedure. All statistical were two-sided. Adjustments for multiple comparisons were made as indicated.

^aCorrected for clustering.

^bCorrected for clustering, age, and sex.