Table 2. Comparison of Age of Data between Journals.
| Article Type | Age of Data, Median (Range) | P* | ||||
|---|---|---|---|---|---|---|
| KJR | ER | Radiology | KJR vs. ER | KJR vs. Radiology | ER vs. Radiology | |
| All eligible articles | ||||||
| No. of articles | 44 | 359 | 211 | |||
| Kolmogorov-Smirnov test, p value | 0.004 | < 0.001 | < 0.001 | |||
| Median No. of days (range) | 826 (299–2843) | 570 (56–4742) | 618 (75–4271) | < 0.001† | < 0.001† | 0.505 |
| Prospective study | ||||||
| No. of articles | 8 | 121 | 102 | |||
| Kolmogorov-Smirnov test, p value | 0.199 | < 0.001 | < 0.001 | |||
| Median No. of days (range) | 666 (377–1351) | 558 (56–3990) | 556 (133–4271) | 0.420 | 0.501 | 0.909 |
| Retrospective study | ||||||
| No. of articles | 33 | 237 | 108 | |||
| Kolmogorov-Smirnov test, p value | 0.003 | < 0.001 | < 0.001 | |||
| Median No. of days (range) | 982 (299–2843) | 585 (69–4742) | 643 (75–2501) | < 0.001† | < 0.001† | 0.323 |
*Comparison of age of data between journals, †Statistically significant after accounting for multiple comparisons (p < 0.017).