Persistent ischemic stroke disparities despite declining incidence in Mexican Americans

Morgenstern, Lewis B.; Smith, Melinda A.; Sánchez, Brisa N.; Brown, Devin L.; Zahuranec, Darin B.; Garcia, Nelda; Kerber, Kevin A.; Skolarus, Lesli E.; Meurer, William J.; Burke, James F.; Adelman, Eric E.; Baek, Jonggyu; Lisabeth, Lynda D.

doi:10.1002/ana.23972

Cited by 141 publications

(134 citation statements)

References 16 publications

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“…Although this study's findings could not establish a causal relationship between breastfeeding and risk of stroke, health disparities surrounding stroke1, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 and breastfeeding rates52, 53, 54 persist. Stroke is 1 of the leading causes of death among Hispanic and non‐Hispanic black women over 65 2, 4.…”

Section: Discussioncontrasting

confidence: 62%

“…Stroke costs the nation $34 billion annually including the cost of healthcare services, medications, and lost productivity 1. Approximately 55 000 more US women than men suffer from a stroke annually 1, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16. Compared with elderly men, elderly female stroke survivors are also at increased risk for moderate to severe disability, poorer quality of life, and institutionalization 16, 17…”

Section: Introductionmentioning

confidence: 99%

“…Stroke is higher among Hispanics and non‐Hispanic blacks compared with non‐Hispanic whites 1, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18. Hispanic and non‐Hispanic black women are at higher risk of stroke, partially due to increased rates of hypertension, obesity, diabetes mellitus, and physical inactivity,1, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28 which are a few stroke risk factors.…”

Section: Introductionmentioning

confidence: 99%

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Breastfeeding History and Risk of Stroke Among Parous Postmenopausal Women in the Women's Health Initiative

Jacobson

Hade

Collins

et al. 2018

JAHA

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BackgroundStroke is the third leading cause of death among US Hispanic and non‐Hispanic black women aged 65 and older. One factor that may protect against stroke is breastfeeding. Few studies have assessed the association between breastfeeding and stroke and whether this association differs by race and ethnicity.Methods and ResultsData were taken from the Women's Health Initiative Observational Study with follow‐up through 2010; adjusted hazard ratios for stroke subsequent to childbirth were estimated with Cox regression models accounting for left and right censoring, overall and stratified by race/ethnicity. Of the 80 191 parous women in the Women's Health Initiative Observational Study, 2699 (3.4%) had experienced a stroke within a follow‐up period of 12.6 years. The average age was 63.7 years at baseline. Fifty‐eight percent (n=46 699) reported ever breastfeeding; 83% were non‐Hispanic white, 8% were non‐Hispanic black, 4% were Hispanic, and 5% were of other race/ethnicity. After adjustment for nonmodifiable potential confounders, compared with women who had never breastfed, women who reported ever breastfeeding had a 23% lower risk of stroke (adjusted hazard ratio=0.77; 95% confidence interval 0.70‐0.83). This association was strongest for non‐Hispanic black women (adjusted hazard ratio=0.52; 95% confidence interval 0.37‐0.71). Further, breastfeeding for a relatively short duration (1‐6 months) was associated with a 19% lower risk of stroke (adjusted hazard ratios=0.81; 95% confidence interval 0.74‐0.89). This association appeared stronger with longer breastfeeding duration and among non‐Hispanic white and non‐Hispanic black women (test for trend P<0.01).ConclusionsStudy results show an association and dose‐response relationship between breastfeeding and lower risk of stroke among postmenopausal women after adjustment for multiple stroke risk factors and lifestyle variables. Further investigation is warranted.

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Section: Discussioncontrasting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Breastfeeding History and Risk of Stroke Among Parous Postmenopausal Women in the Women's Health Initiative

Jacobson

Hade

Collins

et al. 2018

JAHA

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“…A greater burden of stroke incidence and mortality for black and Hispanic patients has been established in the literature, though reasons for this disparity are unclear 36, 37, 38, 39. Few studies have looked at presentation to PSCs by race and ethnicity 18, 40.…”

Section: Discussionmentioning

confidence: 99%

Racial Disparities in Intravenous Recombinant Tissue Plasminogen Activator Use Persist at Primary Stroke Centers

Aparicio

Carr

Kasner

et al. 2015

JAHA

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BackgroundPrimary stroke centers (PSCs) utilize more recombinant tissue plasminogen activator (rt‐PA) than non‐PSCs. The impact of PSCs on racial disparities in rt‐PA use is unknown.Methods and ResultsWe used data from the Nationwide Inpatient Sample from 2004 to 2010, limited to states that publicly reported hospital identity and race. Hospitals certified as PSCs by The Joint Commission were identified. Adults with a diagnosis of ischemic stroke were analyzed. Rt‐PA use was defined by the International Classification of Diseases, 9th Revision procedure code 99.10. Discharges (304 152 patients) from 26 states met eligibility criteria, and of these 71.5% were white, 15.0% black, 7.9% Hispanic, and 5.6% other. Overall, 24.7% of white, 27.4% of black, 16.2% of Hispanic, and 29.8% of other patients presented to PSCs. A higher proportion received rt‐PA at PSCs than non‐PSCs in all race/ethnic groups (white 7.6% versus 2.6%, black 4.8% versus 2.0%, Hispanic 7.1% versus 2.4%, other 7.2% versus 2.5%, all P<0.001). In a multivariable model adjusting for year, age, sex, insurance, medical comorbidities, a diagnosis‐related group–based mortality risk indicator, ZIP code median income, and hospital characteristics, blacks were less likely to receive rt‐PA than whites at non‐PSCs (odds ratio=0.58, 95% CI 0.50 to 0.67) and PSCs (odds ratio=0.63, 95% CI 0.54 to 0.74) and Hispanics were less likely than whites to receive rt‐PA at PSCs (odds ratio=0.77, 95% CI: 0.63 to 0.95). In the fully adjusted model, interaction between race and presentation to a PSC for likelihood of receiving rt‐PA did not reach significance (P=0.98).ConclusionsRacial disparities in intravenous rt‐PA use were not reduced by presentation to PSCs. Black patients were less likely to receive thrombolytic treatment than white patients at both non‐PSCs and PSCs. Hispanic patients were less likely to be seen at PSCs relative to white patients and were less likely to receive intravenous rt‐PA in the fully adjusted model.

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“…11 Mexican Americans (MA) have an increased stroke burden when compared to their nonHispanic white (NHW) counterparts, including increased stroke incidence and poorer neurologic, functional, and cognitive outcomes. [12][13][14] In the face of increasing prevalence of stroke in the US population, in particular among Hispanics, increasing the use of tPA in those who are …”

mentioning

confidence: 99%

Emerging temporal trends in tissue plasminogen activator use

et al. 2016

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Objective: To explore temporal trends in tissue plasminogen activator (tPA) administration for acute ischemic stroke (AIS) in a biethnic community without an academic medical center and variation in trends by age, sex, ethnicity, and stroke severity.Methods: Cases of AIS were identified from 7 hospitals in the Brain Attack Surveillance in Corpus Christi (BASIC) project, a population-based surveillance study between January 1, 2000, and June 30, 2012. tPA, demographics, and stroke severity as assessed by the NIH Stroke Scale (NIHSS) were ascertained from medical records. Temporal trends were explored using generalized estimating equations, and adjustment made for age, sex, ethnicity, and NIHSS. Interaction terms were included to test for effect modification.Results: There were 5,277 AIS cases identified from 4,589 unique individuals. tPA use was steady at 2% and began increasing in 2006, reaching 11% in subsequent years. Stroke severity modified temporal trends (p 5 0.003) such that cases in the highest severity quartile (NIHSS . 8) had larger increases in tPA use than those in lower severity quartiles. Although ethnicity did not modify the temporal trend, Mexican Americans (MAs) were less likely to receive tPA than nonHispanic whites (NHWs) due to emerging ethnic differences in later years.Conclusions: Dramatic increases in tPA use were apparent in this community without an academic medical center. Primary stroke center certification likely contributed to this rise. Results suggest that increases in tPA use were greater in higher severity patients compared to lower severity patients, and a gap between MAs and NHWs in tPA administration may be emerging. Neurology ® 2016;87:2184-2191 GLOSSARY AIS 5 acute ischemic stroke; BASIC 5 Brain Attack Surveillance in Corpus Christi; ED 5 emergency department; EMS 5 emergency medical services; GAM 5 generalized additive models; GEE 5 generalized estimating equations; ICD-9 5 International Classification of Diseases-9; IQR 5 interquartile range; IRB 5 internal review board; MA 5 Mexican American; NHW 5 non-Hispanic white; NIHSS 5 NIH Stroke Scale; PSC 5 primary stroke centers; RR 5 relative rate; tPA 5 tissue plasminogen activator.Stroke is a leading cause of death and long-term adult disability in the United States. 1,2 Due to reductions in stroke mortality and increased life expectancy, the prevalence of stroke is climbing and predicted to increase by 20.5% by 2030, with the largest increase among Hispanic men (29%). 1 Disparities exist in stroke care in the United States with differences in tissue plasminogen activator (tPA) use based on sex and race-ethnicity demonstrated in academic settings. [3][4][5][6][7] Temporal trends show that tPA use has more than doubled at large, high-volume academic hospitals since the early 2000s, with data suggesting that treatment gaps based on age and race are narrowing. [8][9][10] Yet there is a paucity of information concerning trends in community hospitals, which have been shown to exhibit different trends than academic centers....

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Persistent ischemic stroke disparities despite declining incidence in Mexican Americans

Cited by 141 publications

References 16 publications

Breastfeeding History and Risk of Stroke Among Parous Postmenopausal Women in the Women's Health Initiative

Breastfeeding History and Risk of Stroke Among Parous Postmenopausal Women in the Women's Health Initiative

Racial Disparities in Intravenous Recombinant Tissue Plasminogen Activator Use Persist at Primary Stroke Centers

Emerging temporal trends in tissue plasminogen activator use

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