Sentence examples for based observational study using from inspiring English sources
Methods This was a population based, observational study using data on 11 353 cases of NTD not associated with chromosomal anomalies, including 4162 cases of anencephaly and 5776 cases of spina bifida from 28 EUROCAT (European Surveillance of Congenital Anomalies) registries covering approximately 12.5 million births in 19 countries between 1991 and 2011.
This large population based observational study using linked data adds to the growing evidence for the cost effectiveness of primary care in remote Indigenous communities [ 19, 21, 22, 25, 28], where health needs are high, access to primary care is poor and the cost of providing primary care is relatively high, compared to non-remote areas [ 32].
We conducted a retrospective population-based observational study using linked administrative databases in Ontario, Canada, a single payer health care system.
A prospective, multicentre, practice based, observational study was conducted using patients presenting with spinal complaints to the RMIT University (Melbourne, Australia) chiropractic teaching clinics.
Study design: Population based observational study of 6318 consecutive low risk singleton pregnancies.
We conducted a prospective, population based observational study in 6 public hospitals.
Design Population based observational study.
This hospital-based, retrospective, observational study using prospectively collected electronic databases was based in a teaching hospital in Melbourne, Australia.
Design: Observational study using a questionnaire and physical measures.
Observational study using national and hospital data.
