Table 2.
Stratification of Different Groups of Authors Based on h-index Increase after Self-citation.
| h-index did not change | h-index increased 1 integer | h-index increased 2 or more integers | |
|---|---|---|---|
| Number (% of all) | 349 (78%) | 76 (17%) | 21 (5%) |
| Mean Number of Publications (Median; Range) | 52 (35; 0–344) | 124 (104; 12–426) | 207 (180; 99–514) |
| Mean h-Index including Self-citation (Median; Range) | 15 (13; 0–59) | 28 (28; 5–65) | 42 (41; 18–78) |
| Mean Number of Individual Citations (SD) | 1201 (1665) | 3264 (2850) | 6798 (5390) |
| Mean Proportional Increase in H-index from Self-citation by % (Median; Range) | 0 | 5% (4%; 2%–20%) | 7% (6%; 3%–16%) |
| Mean Self-Citation Rate (Median; Range) | 2% (1%; 0%–14%) | 4% (3%; 1%–13%) | 9% (7%; 3%–22%) |