Table 3.

Meta‐analysis results of the incidence of clinical manifestations

Variable	N a	Estimate	95% CI	N b	Standard error	P	T 2	Q	P c	I 2
Fever	27	0.873	0.838 to 0.909	1842	0.018	<.001	0.006	177.086	<.001	85.318
Cough	27	0.581	0.502 to 0.660	1354	0.040	<.001	0.037	332.025	<.001	92.169
Sore throat	9	0.120	0.062 to 0.177	200	0.029	<.001	0.005	58.432	<.001	86.309
Expectoration	10	0.294	0.171 to 0.417	466	0.063	<.001	0.035	266.04	<.001	96.617
Chest distress	5	0.312	−0.024 to 0.648	38	0.172	.069	0.144	204.480	<.001	98.044
Muscle soreness or fatigue	18	0.355	0.253 to 0.456	781	0.052	<.001	0.038	220.594	<.001	92.747
Headache	14	0.094	0.063 to 0.126	214	0.016	<.001	0.002	37.648	<.001	65.47
Diarrhea	15	0.068	0.044 to 0.092	103	0.012	<.001	0.001	32.263	.004	56.607
Dyspnea	11	0.383	0.246 to 0.520	409	0.070	<.001	0.051	351.966	<.001	97.159

Abbreviation: CI, confidence interval.

^a Number of studies.

^b Number of patients.

^c Heterogeneity P value.