Table 2. Spearman correlation coefficients between number of citations and each variable

Variables	Spearman correlation	P-value
Editor
Citations of publications	0.164	<0.001
H-index	0.161	<0.001
GNI per capita (dollars)	0.048	0.345
Number of publications	0.070	0.167
Duration of research career (years)	0.028	0.573
Number of publications from the affiliation	0.148	<0.001
Corresponding author
Citations of publications	0.217	<0.001
H-index	0.158	<0.001
GNI per capita (dollars)	-0.035	0.486
Number of publications	0.103	0.040
Duration of research career (years)	0.006	0.904
Number of publications from the affiliation	0.046	0.363

Abbreviations: GNI, gross national income.
Numbers in bold indicate statistically significant (P <0.05).