Research Article
Level of Evidence of Dental Research in Saudi Arabia (2000–2020)
Table 4
Level of evidence of dental research in Saudi Arabia.
| | Feature | Article numbers | Level of evidence n (%) | value (significance) | | I | II | III | IV |
| | Year | | 2000–2010 | 181 | 12 (6.63) | 14 (7.73) | 6 (3.31) | 149 (82.32) | 0.414 (NS) | | 2011–2020 | 1376 | 140 (10.17) | 125 (9.08) | 43 (3.12) | 1068 (77.62) |
| | International collaboration | | Yes | 554 | 88 (15.88) | 66 (11.91) | 32 (5.78) | 368 (66.43) | ≤ 0.001 (Sig) | | No | 1003 | 64 (6.38) | 73 (7.28) | 17 (1.69) | 849 (84.65) |
| | Journal | | Dental | 1040 | 104 (10) | 104 (10) | 36 (3.46) | 796 (76.54) | 0.1 (NS) | | Others | 517 | 48 (9.28) | 35 (6.77) | 13 (2.51) | 421 (81.43) |
| | Journal | | Saudi | 278 | 33 (11.87) | 25 (8.99) | 11 (3.96) | 209 (75.18) | 0.452 (NS) | | Non-Saudi | 1279 | 119 (9.3) | 114 (8.91) | 38 (2.97) | 1008 (78.81) |
| | Journal’s IF | | IF > 1 | 988 | 115 (11.64) | 106 (10.73) | 40 (4.05) | 727 (73.58) | ≤ 0.001 | | IF < 1 | 569 | 37 (6.5) | 33 (5.8) | 9 (1.58) | 490 (86.12) | (Sig) |
| | Citation numbers | | Citations >10 | 693 | 77 (11.11) | 80 (11.54) | 24 (3.46) | 512 (73.88) | 0.082 (NS) | | Citations <10 | 864 | 75 (8.68) | 59 (6.83) | 25 (2.89) | 705 (81.6) |
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IF: impact factor; Sig: significant; NS: not significant.
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