Table 2 Citing database references among included studies
Reporting item | Total | Journal type | ||
|---|---|---|---|---|
|  | (n = 222) | Top 5 general medicine (n = 19) | Non-top-5 general medicine (n = 203) | P value |
Citing database references, n(%) | 137(61.7) | 15(78.9) | 122(60.1) | 0.171 |
Type of references, n (%) | Â | Â | Â | 0.052 |
Exclusively cited studies published in journals | 71(32.0) | 8(42.1) | 63(31.0) | Â |
Exclusively cited other type of reference* | 50(22.5) | 3(15.8) | 47(23.2) | Â |
Both type of reference | 16(7.2) | 4(21.1) | 12(0.1) | Â |
Referenced studies published in journals, n (%) | 87(39.2) | 12(63.2) | 75(36.9) | 0.046 |
Study regarding data source profile | 33(14.9) | 7(36.8) | 26(12.8) | 0.012 |
Validation study | 24(10.8) | 5(26.3) | 19(9.4) | 0.039 |
Case study | 46(20.7) | 5(26.3) | 41(20.2) | 0.556 |
Published time of referenced studies †| 2015 (2012, 2016) | 2015 (2010, 2015) | 2015 (2012, 2017) | — |