Effect size and experimental power analysis in a paediatric cardiology telemedicine system.
J Telemed Telecare
; 3 Suppl 1: 56-7, 1997.
Article
em En
| MEDLINE
| ID: mdl-9218385
ABSTRACT
A telemedicine system was installed between the University of North Carolina Hospitals and the New Hanover Regional Medical Center. It allowed the transmission of neonatal echocardiograms for immediate reporting. During a six-month study period the system was used for the interpretation of 110 echocardiograms from 48 babies. There were 38 babies studied in a retrospective control period. Hospital length of stay decreased by an average of six days in the telemedicine group, representing an annual saving of some $1.3 million. However, these apparent differences were not significant (P = 0.2) and a power analysis suggested that a sample size of some 600 would have been necessary.
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Base de dados:
MEDLINE
Assunto principal:
Ecocardiografia
/
Telemedicina
/
Cardiopatias
/
Doenças do Prematuro
Tipo de estudo:
Observational_studies
Limite:
Humans
/
Newborn
País/Região como assunto:
America do norte
Idioma:
En
Ano de publicação:
1997
Tipo de documento:
Article