Table 3 Average values of H-index and Hm-index across categories of numbers of articles written as single author, first author, mid-list author, and last author, observed (unadjusted) and adjusted for other article types and career duration, among 18,231 leading researchers in the health sciences
From: Authorship and citation patterns of highly cited biomedical researchers: a cross-sectional study
| Â | Â | H-index | Hm-index | ||
|---|---|---|---|---|---|
Single-author articles | Percent | Observed | Adjusted | Observed | Adjusted |
0–9 | 69.7% | 45.9 | 47.3 | 16.8 | 21.8 |
10–29 | 25.6% | 45.8 | 46.8 | 19.4 | 23.3 |
30–99 | 4.4% | 46.3 | 46.7 | 22.5 | 25.2 |
100–299 | 0.3% | 42.4 | 46.1 | 23.9 | 26.7 |
≥ 300 | 0.0% (N = 3) | 45.3 | 34.2 | 22.1 | 18.9 |
First-author articles | |||||
 0–9 | 9.4% | 41.9 | 48.9 | 14.5 | 20.4 |
 10–29 | 53.5% | 44.3 | 47.5 | 16.6 | 21.4 |
 30–99 | 35.1% | 48.8 | 46.5 | 19.9 | 22.6 |
 100–299 | 1.9% | 56.0 | 45.6 | 25.4 | 24.7 |
 ≥ 300 | 0.0% (N = 6) | 67.0 | 32.5 | 37.2 | 26.7 |
Mid-list-author articles | |||||
 0–9 | 2.4% | 22.5 | 23.3 | 14.1 | 21.8 |
 10–29 | 14.0% | 30.8 | 29.6 | 14.9 | 21.3 |
 30–99 | 49.2% | 41.6 | 38.7 | 16.5 | 21.5 |
 100–299 | 31.6% | 57.5 | 52.6 | 20.2 | 23.1 |
 ≥ 300 | 2.7% | 84.9 | 77.0 | 28.4 | 28.2 |
Last-author articles | |||||
 0–9 | 5.9% | 31.1 | 35.2 | 11.9 | 16.2 |
 10–29 | 26.2% | 37.7 | 37.9 | 14.1 | 18.1 |
 30–99 | 55.8% | 47.6 | 42.5 | 18.3 | 21.5 |
 100–299 | 11.7% | 61.8 | 48.7 | 25.4 | 26.5 |
 ≥ 300 | 0.4% | 79.6 | 56.8 | 35.6 | 33.6 |