A preliminary study of the reliability of immediate vs delayed interviews of cardiac arrest witnesses

Swor, Robert A., Jackson, Raymond, Chu, Kevin, Hatta, Ami, Shillingford, Michael S. and Pascual, Rebecca (1999) A preliminary study of the reliability of immediate vs delayed interviews of cardiac arrest witnesses. Prehospital Emergency Care, 3 2: 110-114. doi:10.1080/10903129908958917


Author Swor, Robert A.
Jackson, Raymond
Chu, Kevin
Hatta, Ami
Shillingford, Michael S.
Pascual, Rebecca
Title A preliminary study of the reliability of immediate vs delayed interviews of cardiac arrest witnesses
Journal name Prehospital Emergency Care   Check publisher's open access policy
ISSN 1090-3127
1090-3135
Publication date 1999-04
Sub-type Article (original research)
DOI 10.1080/10903129908958917
Volume 3
Issue 2
Start page 110
End page 114
Total pages 5
Place of publication London, U.K.
Publisher Informa Healthcare
Language eng
Abstract Introduction: Methods to characterize the interval between a collapse from cardiac arrest until a 911 call is made have not yet been developed. Objective. To determine the concordance of cardiac arrest data obtained by two methods: an immediate nurse interview of out-of-hospital cardiac arrest (OHCA) witnesses, and a follow-up phone interview performed two weeks later. Methods. This was a prospective study of OHCA witnesses dating from January 1997 to May 1998. Witnesses were briefly interviewed at the time of emergency department presentation, and two weeks later a more lengthy structured phone interview was performed. The authors identified key data elements: 1) was the arrest witnessed? (Wit); 2) was CPR administered prior to EMS arrival? (BCPR); 3) was the first call placed to 911? (c911); and 4) was the estimated collapse to call interval <4 minutes? (ECCI). The analysis utilized Cohen's kappa statistic and Spearman's correlation coefficient. Results. A convenience sample of 42 matched pairs of OHCA cases was analyzed. Kappa statistics for agreement between methods were: 1) Wit(κ = 0.750) , 2) BCPR (κ = 0.892), 3) c911(κ = 0.892), and 4) ECCI(κ = 0.571, Spearman's 0.528). Conclusion. There is good to excellent agreement between immediate and phone interview data retrieval methods. Phone interviews appear to yield data comparable to that with the more difficult and expensive, direct interview method.
Keyword Cardiac arrest
Data retrieval
Intervals
Interviews
Telephone interviews
Witnesses
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Wed, 02 Mar 2011, 15:41:14 EST by Dr Kevin Chu on behalf of Royal Brisbane Clinical School