Table 3.

Results of Univariable meta-regression regarding estimated pooled prevalence

	Healthcare professionals (N=62)							General Population (N=105)							Covid-19 patients (N=10)
Variable	No. of studies	Coeff.	S.E.	p	I2 res. (%)	Adj. R2 (%)	Tau2	No. of studies	Coeff.	S.E.	p	I2 res. (%)	Adj. R2 (%)	Tau2	No. of studies	Coeff.	S.E.	p	I2 res. (%)	Adj. R2 (%)	Tau2
Country	62	0.002	0.002	0.38	99.26	-0.26	0.04	105	0.006	0.001	<0.001	99.68	12.34	0.04	10	-0.004	0.01	0.77	98.64	-11.13	0.04
Age	34	0.005	0.007	0.46	99.2	-1.5	0.04	69	0.002	0.002	0.48	99.8	-0.7	0.04	8	0.0005	0.003	0.88	98.66	-12.57	0.04
Female % of participants	62	0.001	0.001	0.72	99.29	-1.45	0.04	103	-0.0001	0.001	0.95	99.73	-0.9	0.04	10	-0.002	0.006	0.71	98.65	-10.51	0.04
Married % of participants	39	0.001	0.002	0.51	99.30	-1.54	0.04	52	0.001	0.001	0.37	99.74	-0.4	0.04	8	-0.002	0.007	0.80	98.46	-16.04	0.04

Coeff.=coefficient. S.E.=standard error. I² res.=I² residual. Adj. R²=adjusted R².