Table 3.

Statistical Comparison Test Results Including Each Statistical Test Used for All Variables

Analysis of Citation Differences Across Variables
Variable Tested	Statistical Test	Test Statistic	P	Statistically Significant?
Year	Spearman	−0.295 (rho)	<0.01**	Yes
LOE	Spearman	0.017 (ρ)	NS	No
Funds	Kruskal–Wallis	4.701 (χ²)	<0.05*	Yes
Design	Kruskal–Wallis	19.942 (χ²)	<0.01**	Yes
Subject	Kruskal–Wallis	8.573 (χ²)	NS	No
PROM	Wilcoxon	W = 458.5	NS	No
Country	Kruskal–Wallis	23.44 (χ²)	NS	No
Funds (post hoc)	Dunn test	−2.168 (Z)	<0.05*	Yes
Design (post hoc)	Dunn test	−3.129 (Z)	<0.05*	Yes

*P < 0.05.

**P < 0.01.