Sex-specific stroke incidence over time in the Greater Cincinnati/Northern Kentucky Stroke Study

Tracy E. Madsen, Jane Khoury, Kathleen Alwell, Charles J. Moomaw, Eric Rademacher, Matthew L. Flaherty, Daniel Woo, Jason Mackey, Felipe De Los Rios La Rosa, Sharyl Martini, Simona Ferioli, Opeolu Adeoye, Pooja Khatri, Joseph P. Broderick, Brett M. Kissela, Dawn Kleindorfer

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Recent data suggest stroke incidence is decreasing over time, but it is unknown whether incidence is decreasing in women and men to the same extent. Methods: Within our population of 1.3 million, all incident strokes among residents ≥20 years old were ascertained at all hospitals during July 1993-June 1994 and calendar years 1999, 2005, and 2010. A sampling scheme was used to ascertain out-of-hospital cases. Sex-specific incidence rates per 100,000 among black and white participants, age- A nd race-adjusted, were standardized to the 2000 US Census population. Trends over time by sex were compared; a Bonferroni correction was applied for multiple comparisons. Results: Over the 4 study periods, there were 7,710 incident strokes; 57.2% (n = 4,412) were women. Women were older than men (mean ± SE 72.4 ± 0.34 vs 68.2 ± 0.32, p < 0.001). Incidence of all strokes decreased over time in men (263 [confidence interval 246-281] to 192 [179-205], p < 0.001) but not in women (217 [205-230] to 198 [187-210], p = 0.15). Similar sex differences were seen for ischemic stroke (men, 238 [223-257] to 165 [153-177], p < 0.01; women, 193 [181-205] to 173 [162-184], p = 0.09). Incidence of all strokes and of ischemic strokes was similar between women and men in 2010. Incidence of intracerebral hemorrhage and subarachnoid hemorrhage were stable over time in both sexes. Conclusions: Decreases in stroke incidence over time are driven by a decrease in ischemic stroke in men. Contrary to previous study periods, stroke incidence rates were similar by sex in 2010. Future research is needed to understand why the decrease in ischemic stroke incidence is more pronounced in men.

Original languageEnglish (US)
Pages (from-to)990-996
Number of pages7
JournalNeurology
Volume89
Issue number10
DOIs
StatePublished - Sep 5 2017
Externally publishedYes

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Stroke
Incidence
Cerebral Hemorrhage
Censuses
Subarachnoid Hemorrhage
Sex Characteristics
Population
Confidence Intervals

ASJC Scopus subject areas

  • Clinical Neurology

Cite this

Madsen, T. E., Khoury, J., Alwell, K., Moomaw, C. J., Rademacher, E., Flaherty, M. L., ... Kleindorfer, D. (2017). Sex-specific stroke incidence over time in the Greater Cincinnati/Northern Kentucky Stroke Study. Neurology, 89(10), 990-996. https://doi.org/10.1212/WNL.0000000000004325

Sex-specific stroke incidence over time in the Greater Cincinnati/Northern Kentucky Stroke Study. / Madsen, Tracy E.; Khoury, Jane; Alwell, Kathleen; Moomaw, Charles J.; Rademacher, Eric; Flaherty, Matthew L.; Woo, Daniel; Mackey, Jason; De Los Rios La Rosa, Felipe; Martini, Sharyl; Ferioli, Simona; Adeoye, Opeolu; Khatri, Pooja; Broderick, Joseph P.; Kissela, Brett M.; Kleindorfer, Dawn.

In: Neurology, Vol. 89, No. 10, 05.09.2017, p. 990-996.

Research output: Contribution to journalArticle

Madsen, TE, Khoury, J, Alwell, K, Moomaw, CJ, Rademacher, E, Flaherty, ML, Woo, D, Mackey, J, De Los Rios La Rosa, F, Martini, S, Ferioli, S, Adeoye, O, Khatri, P, Broderick, JP, Kissela, BM & Kleindorfer, D 2017, 'Sex-specific stroke incidence over time in the Greater Cincinnati/Northern Kentucky Stroke Study', Neurology, vol. 89, no. 10, pp. 990-996. https://doi.org/10.1212/WNL.0000000000004325
Madsen TE, Khoury J, Alwell K, Moomaw CJ, Rademacher E, Flaherty ML et al. Sex-specific stroke incidence over time in the Greater Cincinnati/Northern Kentucky Stroke Study. Neurology. 2017 Sep 5;89(10):990-996. https://doi.org/10.1212/WNL.0000000000004325
Madsen, Tracy E. ; Khoury, Jane ; Alwell, Kathleen ; Moomaw, Charles J. ; Rademacher, Eric ; Flaherty, Matthew L. ; Woo, Daniel ; Mackey, Jason ; De Los Rios La Rosa, Felipe ; Martini, Sharyl ; Ferioli, Simona ; Adeoye, Opeolu ; Khatri, Pooja ; Broderick, Joseph P. ; Kissela, Brett M. ; Kleindorfer, Dawn. / Sex-specific stroke incidence over time in the Greater Cincinnati/Northern Kentucky Stroke Study. In: Neurology. 2017 ; Vol. 89, No. 10. pp. 990-996.
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abstract = "Recent data suggest stroke incidence is decreasing over time, but it is unknown whether incidence is decreasing in women and men to the same extent. Methods: Within our population of 1.3 million, all incident strokes among residents ≥20 years old were ascertained at all hospitals during July 1993-June 1994 and calendar years 1999, 2005, and 2010. A sampling scheme was used to ascertain out-of-hospital cases. Sex-specific incidence rates per 100,000 among black and white participants, age- A nd race-adjusted, were standardized to the 2000 US Census population. Trends over time by sex were compared; a Bonferroni correction was applied for multiple comparisons. Results: Over the 4 study periods, there were 7,710 incident strokes; 57.2{\%} (n = 4,412) were women. Women were older than men (mean ± SE 72.4 ± 0.34 vs 68.2 ± 0.32, p < 0.001). Incidence of all strokes decreased over time in men (263 [confidence interval 246-281] to 192 [179-205], p < 0.001) but not in women (217 [205-230] to 198 [187-210], p = 0.15). Similar sex differences were seen for ischemic stroke (men, 238 [223-257] to 165 [153-177], p < 0.01; women, 193 [181-205] to 173 [162-184], p = 0.09). Incidence of all strokes and of ischemic strokes was similar between women and men in 2010. Incidence of intracerebral hemorrhage and subarachnoid hemorrhage were stable over time in both sexes. Conclusions: Decreases in stroke incidence over time are driven by a decrease in ischemic stroke in men. Contrary to previous study periods, stroke incidence rates were similar by sex in 2010. Future research is needed to understand why the decrease in ischemic stroke incidence is more pronounced in men.",
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AU - Rademacher, Eric

AU - Flaherty, Matthew L.

AU - Woo, Daniel

AU - Mackey, Jason

AU - De Los Rios La Rosa, Felipe

AU - Martini, Sharyl

AU - Ferioli, Simona

AU - Adeoye, Opeolu

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N2 - Recent data suggest stroke incidence is decreasing over time, but it is unknown whether incidence is decreasing in women and men to the same extent. Methods: Within our population of 1.3 million, all incident strokes among residents ≥20 years old were ascertained at all hospitals during July 1993-June 1994 and calendar years 1999, 2005, and 2010. A sampling scheme was used to ascertain out-of-hospital cases. Sex-specific incidence rates per 100,000 among black and white participants, age- A nd race-adjusted, were standardized to the 2000 US Census population. Trends over time by sex were compared; a Bonferroni correction was applied for multiple comparisons. Results: Over the 4 study periods, there were 7,710 incident strokes; 57.2% (n = 4,412) were women. Women were older than men (mean ± SE 72.4 ± 0.34 vs 68.2 ± 0.32, p < 0.001). Incidence of all strokes decreased over time in men (263 [confidence interval 246-281] to 192 [179-205], p < 0.001) but not in women (217 [205-230] to 198 [187-210], p = 0.15). Similar sex differences were seen for ischemic stroke (men, 238 [223-257] to 165 [153-177], p < 0.01; women, 193 [181-205] to 173 [162-184], p = 0.09). Incidence of all strokes and of ischemic strokes was similar between women and men in 2010. Incidence of intracerebral hemorrhage and subarachnoid hemorrhage were stable over time in both sexes. Conclusions: Decreases in stroke incidence over time are driven by a decrease in ischemic stroke in men. Contrary to previous study periods, stroke incidence rates were similar by sex in 2010. Future research is needed to understand why the decrease in ischemic stroke incidence is more pronounced in men.

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