Table 2 Descriptive statistics for the 237 doctoral student-mentor pairs.

From: The relationship between coauthorship and the research impact of medical doctoral students: A social capital perspective

Variables

Mean (SD)/no. (%)

Min

Max

Doctoral students’ h-index

4.17 (2.96)

0.00

17.00

Doctoral students’ publications

6.08 (4.46)

1.00

22.00

Doctoral students’ yearly citation count

16.37 (17.93)

0.00

128.78

Mentors’ h-index

18.41 (7.28)

0.00

38.00

Mentors’ publications

62.66 (39.96)

1.00

202.00

Mentors’ yearly citation count

119.13 (109.76)

0.00

731.10

Mentors’ fecundity

44.87 (29.58)

1.00

113.00

Degree centrality

0.64 (0.49)

0.02

3.56

Closeness centrality

1.00 (0.18)

0.02

1.04

Betweenness centrality

0.22 (0.46)

0.00

4.38

Doctoral students’ coauthor count

16.50 (17.22)

1.00

123.00

Doctoral students’ coauthorship unit count

6.86 (6.26)

0.00

43.00

Student-mentor coauthorship count

4.64 (3.91)

0.00

18.00

Doctoral students’ partnership ability index

3.15 (1.81)

0.00

10.00

Doctoral students’ training period

3.64 (0.99)

3.00

10.00

Mentors’ tenure

15.80 (4.71)

3.00

25.00

Doctoral students’ subject

 

0.00

1.00

 Clinical medicine

188 (79.3%)

  

 Basic medicine

49 (20.7%)

  

Doctoral students’ university

 Army Medical University

117 (49.4%)

  

 Chongqing Medical University

120 (50.6%)

  

Mentors’ title

 

0.00

1.00

 Professor

233 (98.3%)

  

 Associate professor

4 (1.7%)