Predictive effect of out-of-hospital time in outcomes of severely injured young adult and elderly patients.

Abstract:

INTRODUCTION:The importance of accessing care within the first hour after injury has been a fundamental tenet of trauma system planning for 30 years. However, the scientific basis for this belief either has been missing or largely derived from case series from trauma centers. This study sought to determine the correlation between prehospital times and outcomes among severely injured elderly patients. METHODS:This is a cross-sectional, observational study. All adults (> or = 18 years of age) with acute trauma as defined by The International Classification of Diseases Ninth Edition, Clinical Modification diagnostic codes and E-codes were included. Poisonings, single system burns, and late effects of injury were excluded. Chi-square and Student's t-test were used for significance testing. To assess the predictive effects of prehospital time and outcomes, three independent logistic regression models were constructed for both young and elderly groups, with hospital length of stay, mortality, and complications as individual dependent variables. Statistical significance was set at the 0.05 level. RESULTS:Of 41,041 cases, 37,276 were > or = 18 years of age. Of the 1,866 with an Injury Severity Score (ISS) > 15, 1,205 were young and 661 elderly. Logistic regression results showed that prehospital time correlated significantly with hospital length of stay (p = 0.001) and complications (p = 0.016), but not with mortality (p = 0.264) among young patients, whereas in the elderly group pre-hospital time had no significant predictive effect for length of stay, complications, or mortality (p = 0.512, p = 0.512, and p = 0.954 respectively). CONCLUSION:This population-based study has demonstrated that prehospital time correlates with length of stay and complications in young patients. In elderly patients, prehospital time failed to show correlation with any outcomes measured.

journal_name

Prehosp Disaster Med

authors

Báez AA,Lane PL,Sorondo B,Giráldez EM

doi

10.1017/s1049023x00004143

subject

Has Abstract

pub_date

2006-11-01 00:00:00

pages

427-30

issue

6

eissn

1049-023X

issn

1945-1938

journal_volume

21

pub_type

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