A Systematic Review and Meta-Analysis on the Association between Hypertension and Tinnitus

Table 2

Parameter estimation of meta-regression.

Variable	Univariate		Multivariate
	Coefficient	95% CI	Coefficient	95% CI
Publication year	0.07	(−0.02, 0.16)	0.04	(−0.06, 0.13)
Region	−0.49	(−1.23, 0.25)	−0.21	(−0.86, 0.43)
Sample size	−3.46e − 5	(−12.14e − 5, 5.23e − 5)	7.06e − 6	(−6.71e − 5, 8.12e − 5)
Study design	1.28	(0.54, 2.02)	1.10	(0.07, 2.14)
Confounder adjustment	0.34	(−0.32, 1.01)	0.10	(−0.53, 0.73)

95% CI indicates 95% confidence interval.