| Autor: |
Hoogendam, Arjen, de Vries Robbé, Pieter F., Overbeke, A. John P.M. |
| Zdroj: |
Journal of the Medical Library Association; Apr2012, Vol. 100 Issue 2, p121-126, 6p |
| Abstrakt: |
Background: Translating a question into a query using patient characteristics, type of intervention, control, and outcome (PICO) should help answer therapeutic questions in PubMed searches. The authors performed a randomized crossover trial to determine whether the PICO format was useful for quick searches of PubMed. Methods: Twenty-two residents and specialists working at the Radboud University Nijmegen Medical Centre were trained in formulating PICO queries and then presented with a randomized set of questions derived from Cochrane reviews. They were asked to use the best query possible in a five-minute search, using standard and PICO queries. Recall and precision were calculated for both standard and PICO queries. Results: Twenty-two physicians created 434 queries using both techniques. Average precision was 4.02% for standard queries and 3.44% for PICO queries (difference nonsignificant, t(21)520.56, P50.58). Average recall was 12.27% for standard queries and 13.62% for PICO queries (difference nonsignificant, t(21)520.76, P50.46). Conclusions: PICO queries do not result in better recall or precision in time-limited searches. Standard queries containing enough detail are sufficient for quick searches. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
