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. 2020 Jul 1;15(7):e0234912. doi: 10.1371/journal.pone.0234912

Table 1. Table of descriptive statistics for transformed variables included in the final model.

For each of the 13 variables, the article count, average, standard deviation (SD), median, interquartile range (IQR), and minimum and maximum values are presented. All descriptive statistics are calculated for all journals and within the distinct journal quartiles. As many variables have been transformed, a description of the transformation performed (if any) is also included.

Variable Quartile 1 Quartile 2 Quartile 3 Overall
Lead Author H-index
 Transformation, if any sqrt(Lead Author H-index)
 Count 507 172 123 801
 Mean (SD) 3.33 (1.42) 3.64 (1.41) 2.96 (1.46) 3.34 (1.43)
 Median (IQR) 3.16 (1.79) 3.61 (1.74) 2.83 (1.87) 3.16 (1.79)
 Min, Max 0.00, 10.20 1.00, 7.35 1.00, 7.00 0.00, 10.20
Institution Ranking
 Transformation, if any log(Institution Ranking + 1)
 Count 507 172 123 801
 Mean (SD) 5.45 (1.38) 5.92 (1.15) 6.01 (1.07) 5.64 (1.31)
 Median (IQR) 5.53 (2.40) 6.11 (1.74) 6.91 (1.99) 5.86 (2.07)
 Min, Max 0.69, 6.91 2.64, 6.91 3.74, 6.91 0.69, 6.91
Corresponding Author H-index
 Transformation, if any sqrt(Corresponding H-index)
 Count 507 172 123 801
 Mean (SD) 3.91 (1.48) 4.22 (1.51) 3.31 (1.56) 3.89 (1.52)
 Median (IQR) 3.74 (2.02) 4.12 (2.15) 3.16 (1.89) 3.74 (2.17)
 Min, Max 1.00, 10.20 1.00, 7.87 1.00, 7.00 1.00, 10.20
Scopus Citation Count
 Transformation, if any sqrt(Scopus)
 Count 507 172 123 801
 Mean (SD) 6.01 (2.82) 4.96 (2.22) 4.68 (2.21) 5.58 (2.68)
 Median (IQR) 5.48 (3.38) 4.58 (3.22) 4.47 (2.22) 5.10 (3.26)
 Min, Max 1.00, 20.88 0.00, 12.25 0.00, 12.29 0.00, 20.88
Web of Science Count
 Transformation, if any sqrt(Scopus)
 Count 507 172 123 801
 Mean (SD) 5.77 (2.68) 4.79 (2.16) 4.29 (2.13) 5.34 (2.56)
 Median (IQR) 5.20 (3.20) 4.53 (3.10) 4.12 (1.97) 4.90 (3.24)
 Min, Max 0.00, 20.27 0.00, 11.27 0.00, 11.45 0.00, 20.27
Field Weighted Citation Count
 Transformation, if any sqrt(WoS)
 Count 507 172 123 801
 Mean (SD) 0.93 (0.53) 0.70 (0.38) 0.70 (0.42) 0.85 (0.50)
 Median (IQR) 0.90 (0.70) 0.64 (0.55) 0.62 (0.52) 0.78 (0.61)
 Min, Max 0.00, 3.47 0.00, 1.68 0.00, 1.99 0.00, 3.47
Abstract Views
 Transformation, if any (AbsViews)^0.30
 Count 507 172 123 801
 Mean (SD) 6.78 (2.60) 6.12 (1.42) 7.30 (1.70) 6.72 (2.30)
 Median (IQR) 6.92 (3.24) 6.10 (1.80) 7.14 (1.76) 6.72 (2.84)
 Min, Max 1.00, 15.80 2.91, 10.97 0.00, 11.37 0.00, 15.80
Mendeley Readership
 Transformation, if any (Mendeley)^0.40
 Count 507 172 123 801
 Mean (SD) 4.05 (1.72) 3.64 (1.54) 4.64 (1.66) 4.05 (1.70)
 Median (IQR) 3.85 (1.94) 3.57 (1.84) 4.52 (1.59) 3.95 (1.90)
 Min, Max 0.00, 12.25 1.00, 8.51 0.00, 10.35 0.00, 12.25
Journal Impact Factor %
 Transformation, if any None used
 Count 507 172 123 801
 Mean (SD) 96.61 (2.38) 81.25 (0.00) 66.76 (15.26) 88.76 (12.80)
 Median (IQR) 96.85 (2.85) 81.25 (0.00) 78.17 (31.64) 95.07 (15.60)
 Min, Max 92.36, 100.00 81.25, 81.25 46.53, 78.17 46.53, 100.00
1-year Impact Factor
 Transformation, if any None used
 Count 507 172 123 801
 Mean (SD) 3.59 (0.38) 1.75 (0.00) 1.70 (0.36) 2.91 (0.96)
 Median (IQR) 3.63 (0.57) 1.75 (0.00) 1.91 (0.82) 3.40 (1.88)
 Min, Max 2.86, 3.97 1.75, 1.75 1.09, 1.91 1.09, 3.97
5-year Impact Factor
 Transformation, if any None used
 Count 507 172 123 801
 Mean (SD) 3.77 (0.15) 2.10 (0.00) 1.93 (0.20) 3.13 (0.85)
 Median (IQR) 3.69 (0.18) 2.10 (0.00) 2.05 (0.44) 3.64 (1.72)
 Min, Max 3.64, 4.08 2.10, 2.10 1.61, 2.05 1.61, 4.08
Altmetric Score
 Transformation, if any log(Altmetric + 1)^0.7
 Count 507 172 123 801
 Mean (SD) 0.36 (0.67) 0.26 (0.56) 0.38 (0.70) 0.34 (0.65)
 Median (IQR) 0.00 (0.77) 0.00 (0.00) 0.00 (0.77) 0.00 (0.77)
 Min, Max 0.00, 3.12 0.00, 3.08 0.00, 2.67 0.00, 3.12
Social Media Mentions
 Transformation, if any log(SocMedia + 1)
 Count 507 172 123 801
 Mean (SD) 0.34 (0.80) 0.20 (0.61) 0.25 (0.62) 0.30 (0.74)
 Median (IQR) 0.00 (0.00) 0.00 (0.00) 0.00 (0.00) 0.00 (0.00)
 Min, Max 0.00, 4.64 0.00, 5.07 0.00, 2.83 0.00, 5.07