Table 1 Distribution of research articles across 7 categories of numbers of authors, and means (SD) and medians (Q1-Q3) of citations obtained in 2015–20 (Total citations, citations by others, collective self-citations, self-citations as percentage of total), and percentage of uncited papers, for 88,594 articles in health-related fields published in 2015
Number of authors | N (%) | Total citations, mean (SD) median (Q1-Q3) | Citations by others, mean (SD) median (Q1-Q3) | Collective self-citations, mean (SD) median (Q1-Q3) | Percent collective self-citations, mean (SD) median (Q1-Q3) | Uncited articles (percent) |
|---|---|---|---|---|---|---|
1 | 2618 (3.0) | 10.5 (29.8) 2 (0—11) | 9.6 (28.8) 2 (0—11) | 0.8 (2.5) 0 (0—11) | 10.6 (20.1) 0 (0—11) | 40.6 |
2–4 | 19306 (21.8) | 19.9 (76.5) 12 (6—23) | 17.3 (75.9) 10 (4—23) | 2.6 (3.8) 1 (0—23) | 16.5 (19.7) 10 (0—23) | 6.2 |
5–9 | 43159 (48.7) | 22.5 (81.6) 15 (8—26) | 18.9 (80.6) 12 (6—26) | 3.6 (4.8) 2 (1—26) | 19.3 (19.4) 14 (4—26) | 1.4 |
10–19 | 20956 (23.7) | 32.4 (54.6) 20 (11—36) | 26.7 (50.2) 15 (8—36) | 5.7 (7.7) 4 (1—36) | 21.4 (18.5) 17 (8—36) | 0.5 |
20–29 | 1874 (2.1) | 67.2 (157.9) 33 (18—69) | 55.5 (145.4) 26 (13—69) | 11.6 (16.7) 7 (3—69) | 23.2 (17.6) 20 (11—69) | 0.1 |
30–49 | 491 (0.6) | 109.4 (347.0) 39 (20—87) | 91.0 (325.8) 29 (14—87) | 18.4 (31.3) 9 (4—87) | 26.0 (18.0) 23 (12—87) | 0.6 |
≥ 50 | 190 (0.2) | 93.7 (339.4) 36 (15—71) | 72.5 (305.4) 26 (9—71) | 21.2 (39.4) 10 (4—71) | 34.8 (22.8) 32 (19—71) | 0.5 |