Viral Coinfection among COVID-19 Patient Groups: An Update Systematic Review and Meta-Analysis

Table 2

The univariate meta-regression analysis on the determinant heterogeneity in viral coinfections among COVID-19 patient studies.

Variables	Coefficient	95% CI	value
Age (year)		to	0.897
WHO region (score)	2.225	-6.317 to 11.404	0.598
Sample size (number)	−1 × 10^−4	to	0.090

CI: confidence interval; coding of WHO region: 1: EMRO; 2: EURO; 3: AMRO; 4: WPRO.