Seasonal variations in hospital admission for deep vein thrombosis and pulmonary embolism: analysis of discharge data

Usual confirmatory tests were venography or Doppler ultrasonography for deep vein thrombosis and a ventilation and perfusion lung scan, helicoidal computed tomography, or pulmonary angiography for pulmonary embolism. Comment Clear seasonal variations exist in admission to hospital for deep vein thro...

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Bibliographic Details
Published in:	BMJ Vol. 323; no. 7313; pp. 601 - 602
Main Authors:	Boulay, Fabrice, Berthier, Frédéric, Schoukroun, Grégory, Raybaut, Charles, Gendreike, Yves, Blaive, Bruno
Format:	Journal Article
Language:	English
Published:	London British Medical Journal Publishing Group 15-09-2001 British Medical Association BMJ Publishing Group LTD BMJ Publishing Group BMJ
Edition:	International edition
Subjects:	Aged Bias Biological and medical sciences Blood and lymphatic vessels Cardiology. Vascular system Cardiovascular disease Codes Data analysis Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous Embolisms Epidemiology Faith healing Female France - epidemiology Hospital admissions Hospitals Humans International Statistical Classification of Diseases Literature reviews Male Medical sciences Middle Aged Nonprofit hospitals Patient Admission - statistics & numerical data Patient admissions Patient Discharge - statistics & numerical data Pulmonary Embolism - epidemiology Pulmonary embolisms Seasons Selection bias Statistical analysis Teaching hospitals Thrombosis Utilization Review Veins & arteries Venous thrombosis Venous Thrombosis - epidemiology France Vascular disease Pulmonary embolism Human Prevalence Seasonal variation Hospital admission Cardiovascular disease Deep vein Thrombosis Venous disease Incidence
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Summary:	Usual confirmatory tests were venography or Doppler ultrasonography for deep vein thrombosis and a ventilation and perfusion lung scan, helicoidal computed tomography, or pulmonary angiography for pulmonary embolism. Comment Clear seasonal variations exist in admission to hospital for deep vein thrombosis and pulmonary embolism. Because the study was retrospective the accuracy of diagnosis might be questioned, but any bias would be minimal as only cases with documentary proof were selected.
Bibliography:	ArticleID:bmj.323.7313.601 PMID:11557707 Correspondence to: F Boulay href:bmj-323-601.pdf ark:/67375/NVC-H63JS4MD-W local:bmj;323/7313/601 istex:532715770AAAE00EDC474DF47B9ABF933B39AE0C ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Contributors: F Boulay proposed the idea of the study, acquired the data, supervised the analysis, performed the literature review, and wrote the report. F Berthier did the data analysis and helped to interpret the data, do the literature review, and write the paper. F Boulay and F Berthier will act as study guarantors for the paper. GS participated in the data analysis and contributed to the paper. CR participated in the data analysis and the literature review. YG and BB helped to interpret the data and review the manuscript. Correspondence to: F Boulay boulay.f@chu-nice.fr
ISSN:	0959-8138 0959-8146 1468-5833 1756-1833
DOI:	10.1136/bmj.323.7313.601