Table 1.
Aspects of questions that were sent to only one of the two databases (N = 1125)
| PubMed (N = 242) | UpToDate (N = 883) | χ2† | P | |
| No. (%)* | No. (%)* | |||
| Answer | 54 | < .001 | ||
| No answer found | 90 (37) | 154 (17) | ||
| Partially answered | 68 (28) | 219 (25) | ||
| Fully answered | 84 (35) | 510 (58) | ||
| Subject | ||||
| Diagnosis | 51 (21) | 400 (45) | 46.41 | < .001 |
| Etiology | 70 (29) | 219 (25) | 1.69 | .19 |
| Prognosis | 3 (1) | 8 (1) | 0.01 | .92 |
| Therapy | 41 (17) | 143 (16) | 0.08 | .78 |
| Side effects | 14 (6) | 12 (1) | 16.48 | < .001 |
| Complications | 17 (7) | 33 (4) | 4.83 | .03 |
| Overview/Review | 40 (17) | 61 (7) | 21.51 | < .001 |
| Mechanism | 5 (2) | 3 (0.3) | 5.76 | .02 |
| Unclear | 1 (0.4) | 4 (0.4) | 0.21 | .64 |
*Percentages may not add to 100% due to rounding.
†Chi-square of difference between UpToDate and PubMed.