Journal article
Proliferation of prenatal ultrasonography
Abstract
BACKGROUND: The extent to which temporal increases in the use of prenatal ultrasonography reflect changes in maternal risk is unknown. In this population-based study, we examined the use of prenatal ultrasonography from 1996 to 2006 in Ontario.
METHODS: With fiscal year 1996/97 as the baseline, we evaluated the relative risk (RR) and 95% confidence interval (CI) for the change in rates of ultrasonography for each subsequent year. The RR was …
Authors
You JJ; Alter DA; Stukel TA; McDonald SD; Laupacis A; Liu Y; Ray JG
Journal
Canadian Medical Association Journal, Vol. 182, No. 2, pp. 143–151
Publisher
Joule
Publication Date
February 9, 2010
DOI
10.1503/cmaj.090979
ISSN
0820-3946