Table 3.

The spearman correlation coefficients between the citations received by publication and the type of collaboration and the size of teams.

			Type of collaboration		Size of teams
			With or without IIC	With or without IC	N of authors	N of institutions	N of countries
Citations received by publication	All periods (N = 6947)	Correlation coefficient	0.034*	0.092*	0.124*	0.078*	0.096*
		p value	.004	<.001	<.001	<.001	<.001
	Period 1 (N = 961)	Correlation coefficient	0.134*	0.140*	0.290*	0.189*	0.154*
		p value	<.001	<.001	<.001	<.001	<.001
	Period 2 (N = 1835)	Correlation coefficient	0.083*	0.058*	0.378*	0.197*	0.066*
		p value	<.001	.012	<.001	<.001	.005
	Period 3 (N = 4151)	Correlation coefficient	0.064*	0.054*	0.190*	0.132*	0.055*
		p value	<.001	<.001	<.001	<.001	<.001

Abbreviations: IIC = Inter-institutional Cooperation; IC = International Cooperation; N = Number.

The citations received by publications were used to measure the academic impact of publications. Values with an asterisk indicate a significant correlation between the academic influence of publications and other factors. Period 1 refers to 2010 ~ 2019, period 2 refers to 2020 ~ 2021, and period 3 refers to 2022 to April 12, 2023.