|
Single term with the best sensitivity (keeping specificity ≥50%), best specificity (keeping sensitivity ≥50%), and best optimization of sensitivity and specificity (based on the lowest possible absolute difference between sensitivity and specificity) for detecting studies of prognosis in MEDLINE in 2000 |
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| Search term OVID search* |
Sensitivity (%) Development Validation Diff (95% CI)† |
Specificity (%) Development Validation Diff (95% CI)† |
Precision (%) Development Validation Diff (95% CI)† |
Accuracy (%) Development Validation Diff (95% CI)† |
|
|
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| ‡exp epidemiologic studies |
64.9 |
78.6 |
1.1 |
78.6 |
| 73.4 |
79.1 |
1.4 |
79.1 |
|
| 8.5 (-4.6 to 21.7) |
0.5 (-0.3 to 1.2) |
0.3 (-0.2 to 0.7) |
0.5 (-0.3 to 1.2) |
|
|
*The search strategy is reported using Ovid's search engine syntax for MEDLINE. The PubMed syntax is epidemiologic studies [MeSH]. †Diff = Difference, comparing the development and validation data sets using the iterative method of Miettinen and Nurminen for two independent binomial proportions. None of the differences were statistically significant. ‡exp = explode, a search term that automatically includes closely related indexing terms. | ||||
Wilczynski et al. BMC Medicine 2004 2:23 doi:10.1186/1741-7015-2-23 |
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