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Age-dependent differences in demographics, risk factors, co-morbidity, etiology, management, and clinical outcome of acute ischemic stroke

Journal of Neurology volume 255, pages 1503–1507 (2008)Cite this article

Abstract

Background

Comparisons between younger and older stroke patients including comorbidities are limited.

Methods

Prospective data of consecutive patients with first ever acute ischemic stroke were compared between younger (≤ 45 years) and older patients (> 45 years).

Results

Among 1004 patients, 137 (14 %) were ≤ 45 years. Younger patients were more commonly female (57 % versus 34 %; p < 0.0001), had a lower frequency of diabetes (1 % versus 15 %; p < 0.0001), hypercholesterolemia (26 % versus 56 %; p < 0.0001), hypertension (19 % versus 65 %; p < 0.0001), coronary heart disease (14 % versus 40 %; p < 0.0001), and a lower mean Charlson co-morbidity index (CCI), (0.18 versus 0.84; p < 0.0001). Tobacco use was more prevalent in the young (39 % versus 26 %; P < 0.0001). Large artery disease (2 % versus 21 %; p < 0.0001), small artery disease (3 % versus 12 %; p = 0.0019) and atrial fibrillation (1 % versus 17 %; p = 0.001) were less common in young patients, while other etiologies (31 % versus 9 %; p < 0.0001), patent foramen ovale or atrial septal defect (44 % versus 26 %; p < 0.0001), and cervical artery dissection (26 % versus 7 %; p < 0.0001) were more frequent. A favorable outcome (mRS 0 or 1) was more common (57.4 % versus 46.9 %; p = 0.023), and mortality (5.1 % versus 12 %; p = 0.009) was lower in the young. After regression analysis, there was no independent association between age and outcome (p = 0.206) or mortality (p = 0.073). Baseline NIHSS score (p < 0.0001), diabetes (p = 0.041), and CCI (p = 0.002) independently predicted an unfavorable outcome.

Conclusions

Younger patients were more likely to be female, had different risk factors and etiologies and fewer co-morbidities. There was no independent association between age and clinical outcome or mortality.

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Affiliations

  1. Dept. of Neurology, University Hospital, Inselspital, Freiburgstrasse, 3010, Berne, Switzerland

    M. Arnold MD, M. Halpern, N. Meier, U. Fischer, T. Haefeli, L. Kappeler, H. P. Mattle & K. Nedeltchev

  2. Dept. of Diagnostic and Interventional, Neuroradiology, Inselspital, University of Bern, Bern, Switzerland

    C. Brekenfeld

Authors
  1. M. Arnold MD
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  2. M. Halpern
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  3. N. Meier
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  4. U. Fischer
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  5. T. Haefeli
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  6. L. Kappeler
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  7. C. Brekenfeld
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  8. H. P. Mattle
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  9. K. Nedeltchev
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Correspondence to M. Arnold MD.

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Arnold, M., Halpern, M., Meier, N. et al. Age-dependent differences in demographics, risk factors, co-morbidity, etiology, management, and clinical outcome of acute ischemic stroke. J Neurol 255, 1503–1507 (2008). https://doi.org/10.1007/s00415-008-0949-9

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  • DOI: https://doi.org/10.1007/s00415-008-0949-9

Key words

  • stroke
  • outcome
  • mortality