Search PubMed⌕ Search

PubMed · 10109872

Radiologic purchase patterns tracked.

Abstract

A recent report of hospitals' radiology purchasing processes and buying plans for the future shows they're generally happy with the equipment they have and would replace it with the same brand. The report looks at what types diagnostic imaging equipment, who decides what to buy and what improvements hospitals would like to see in their imaging equipment.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

M Wagner. 1991-04-08. Radiologic purchase patterns tracked.. https://pubmed.ncbi.nlm.nih.gov/10109872/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

Probability estimation when some observations are grouped.

This paper considers the use of additional questions for decreasing survey non-response rates and an approach for estimating a probability based on the results obtained. In a survey, the respondents are asked to answer an original question and follow-up questions, where the answers for the follow-up questions are grouped answers for the original question. For example, respondents are asked to provide an exact number of incidents, but in cases of 'Do not know' or 'Refuse' responses, they are subsequently asked to pick an answer from a less specific categorical scale. The new estimator obtains smaller variance asymptotically and does not depend on a distribution family. This method is applied to income questions in a survey regarding injury prevention and behaviours. Another application is survey data on intimate partner violence, where some amendments were applied for incorporating post-stratification weights and for using non-random grouping. For additional illustration, an example of parameter estimation on artificially generated data is presented.

Data Collection↗