The Hotspots of Sports Science and the Effects of Knowledge Network on Scientific Performance Based on Bibliometrics and Social Network Analysis

Table 2

Descriptive statistics of variables.

Variable	Mean	Std. dev.	Min	Max
Paper counts	28.64119	85.66474	6	2405
Average citation	21.68361	11.71496	2.5	148.25
Degree centrality	42.72149	68.7952	3	1537
Betweenness centrality	2994.606	22082.97	0.723307	1012664
Closeness centrality	0.4125856	0.038428	0.286623	0.3840
PageRanks	0.0002411	0.000454	0.000049	0.013906
Clustering	0.2286381	0.0823648	0	0.7
Structural holes	0.9457353	0.0335163	0.6375047	0.9974905

Obs = 4147.