کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1083954 951041 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Literature search parameters marginally improved the pooled estimate accuracy for ultrasound in detecting deep venous thrombosis
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی سیاست های بهداشت و سلامت عمومی
پیش نمایش صفحه اول مقاله
Literature search parameters marginally improved the pooled estimate accuracy for ultrasound in detecting deep venous thrombosis
چکیده انگلیسی

Background and ObjectivesData collection remains of utmost importance to avoid publication bias in systematic reviews. Our objectives were to compare search strategies with and without methodological terms in Medline, to find out how other databases complement Medline, and how these strategies affect the pooled estimates of the accuracy.Study Design and SettingA study was eligible if it prospectively compared ultrasound to venography for the diagnosis of deep venous thrombosis in the lower limbs. All relevant articles found with all databases, searched from 1966 through 2003, constitute the reference standard. Sensitivity was defined as the proportion of relevant studies found by Medline searches divided by the total number of articles in the reference standard.ResultsOf a total of 1,473 citations, 237 abstracts were included. The sensitivity of strategies without methodological terms was higher (96%) than those with (95%, 76%, and 95%). Searches of multiple databases found seven articles not found with Medline. Searches of congress proceedings (International Society of Thrombosis and Haemostasis) found three abstracts not published in full. The diagnostic odds ratio OR was 5.66 (95% confidence interval CI = 4.84–6.48) when multiple databases were searched and 5.57 (95% CI = 3.49–7.65) when only English-language articles in Medline were identified.ConclusionMedline searches combining free text and MeSH terms were more sensitive. Single Medline search affects only marginally the pooled estimate accuracy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Clinical Epidemiology - Volume 59, Issue 7, July 2006, Pages 710–714
نویسندگان
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