Table 2.
Two-time point analyses comparing journals' top-cited articles before and after 2008.
| Variables | Before 2008 | After 2008 | P-value |
|---|---|---|---|
| Year | 2000–2008 | 2009–2017 | |
| No. of papers | 80 | 20 | |
| Citations WOS per paper | 471.71 | 514.45 | 0.070 |
| Citations WOS per year | 1,797 | 857.42 | 0.000 |
| Citations 2020 per paper | 24.89 | 67.05 | 0.002 |
| Country | |||
| USA | 36 (85.71%) | 6 (14.29%) | |
| Canada | 8 (72.73%) | 3 (27.27%) | |
| Others | 36 (73.47%) | 11 (26.53%) | |
| Document type | |||
| No. of article | 57 (82.61%) | 12 (17.39%) | |
| No. of review | 23 (74.19%) | 8 (25.81%) | |
| Citations per article | 451.21 | 560.17 | 0.137 |
| Citations per review | 522.52 | 445.88 | 0.929 |
| Open access | 24 (70.59%) | 10 (29.41%) | |
| Highly cited | 0 | 14 (100%) | |
| Average IF (2020) | 12.468 (2.153–74.699) | 13.786 (3.125–60.39) | 0.379 |