Alexandra DeSorbo
Columbia University
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Featured researches published by Alexandra DeSorbo.
Stroke | 2012
Olajide Williams; Alexandra DeSorbo; James M. Noble; William Gerin
Background and Purpose— Low thrombolysis rates for acute ischemic stroke are linked to delays in seeking immediate treatment due to low public stroke awareness. We aimed to assess whether “Child-Mediated Stroke Communication” could improve stroke literacy of parents of children enrolled in a school-based stroke literacy program called Hip Hop Stroke. Methods— Parents of children aged 9 to 12 years from 2 public schools in Harlem, New York City, were recruited to participate in stroke literacy questionnaires before and after their childs participation in Hip Hop Stroke, a novel Child-Mediated Stroke Communication intervention delivered in school auditoriums. Parental recall of stroke information communicated through their child was assessed 1-week after the intervention. Results— Fifth and sixth grade students (n=182) were enrolled into Hip Hop Stroke. One hundred two parents were approached in person to participate; 75 opted to participate and 71 completed both the pretest and post-test (74% response rate and 95% retention rate). Parental stroke literacy improved after the program; before the program, 3 parents of 75 (3.9%) were able to identify the 5 cardinal stroke symptoms, distracting symptom (chest pains), and had an urgent action plan (calling 911) compared with 21 of 71 parents (29.6%) postintervention (P<0.001). The FAST mnemonic was known by 2 (2.7%) of participants before the program versus 29 (41%) after program completion (P<0.001). Conclusions— Knowledge of stroke signs and symptoms remains low among residents of this high-risk population. The use of Child-Mediated Stroke Communication suggests that school children aged 9 to 12 years may be effective conduits of critical stroke knowledge to their parents.
Neurology | 2012
Olajide Williams; Alexandra DeSorbo; James M. Noble; Michele L. Shaffer; William Gerin
Objectives: To evaluate the effect of Hip Hop Stroke, a school-based multimedia musical stroke literacy intervention that targets children aged 8−12 in high-risk minority communities, on the long-term learning of stroke knowledge. Methods: We enrolled a cohort of 104 fifth and sixth grade children from 2 schools in Central Harlem into a single course of Hip Hop Stroke (3 1-hour classroom sessions, delivered over 3 consecutive days). Tests evaluating knowledge of stroke symptoms and behavioral intent to call 911 using hypothetical stroke scenarios were conducted at baseline, immediately after the intervention, and 15 months after the initial and only intervention. A composite score was created from 5 traditional stroke symptoms plus a distracter (chest pain). Data were analyzed using SAS version 9.2. Results: A total of 104 students completed both pretests (PTs) and immediate posttests (IPs), and 85 students completed all 3 tests, including a 15-month delayed posttest (DP) (81.7% retention rate). At pretest, 55.8% correctly identified calling 911. The baseline composite score was 3.24 (SD 1.45). At IP, stroke knowledge increased significantly across all items: calling 911 (85.6%, p < 0.001) and composite score (5.30, p < 0.0001). At 15 months, stroke knowledge increased significantly from PT for all measures except sudden headache with a composite score of 4.73 (p < 0.0001, PT vs DP). Conclusion: Three hours of Hip Hop Stroke significantly improved knowledge of stroke symptoms and behavioral intent to call 911 of fifth and sixth grade children living in a high stroke risk neighborhood. This learning persisted for up to 15 months postintervention.
Stroke | 2014
Olajide Williams; Mindy F. Hecht; Alexandra DeSorbo; Saima Huq; James M. Noble
Background and Purpose— Improving actionable stroke knowledge of a witness or bystander, which in some cases are children, may improve response to an acute stroke event. Methods— We used a quasiexperimental pre-test post-test design to evaluate actionable stroke knowledge of 210 children aged 9 to 10 years in response to a single, 15-minute exposure to a stroke education video game conducted in the school computer laboratory. After immediate post-test, we provided remote password-protected online video game access and encouraged children to play at their leisure from home. An unannounced delayed post-test occurred 7 weeks later. Results— Two hundred ten children completed pretest, 205 completed immediate post-test, whereas 198 completed delayed post-test. One hundred fifty-six (74%) children had Internet access at home, and 41 (26%), mostly girls, played the video game remotely. There was significant improvement in stroke symptom composite scores, calling 911, and all individual stroke knowledge items, including a distractor across the testing sequence (P<0.05). Children who played the video game remotely demonstrated significant improvement in knowledge of 1 symptom (sudden imbalance) compared with children who did not (P<0.05), although overall composite scores showed no difference. Conclusions— Stroke education video games may represent novel means for improving and sustaining actionable stroke knowledge of children.
Trials | 2015
Joseph Ravenell; Ellyn Leighton-Herrmann; Amparo C. Abel-Bey; Alexandra DeSorbo; Jeanne A. Teresi; Lenfis Valdez; Madeleine Gordillo; William Gerin; Michael L. Hecht; Mildred Ramirez; James M. Noble; Elizabeth Cohn; Giardin Jean-Louis; Tanya M. Spruill; Salina P. Waddy; Gbenga Ogedegbe; Olajide Williams
BackgroundStroke is a leading cause of adult disability and mortality. Intravenous thrombolysis can minimize disability when patients present to the emergency department for treatment within the 3 − 4½ h of symptom onset. Blacks and Hispanics are more likely to die and suffer disability from stroke than whites, due in part to delayed hospital arrival and ineligibility for intravenous thrombolysis for acute stroke. Low stroke literacy (poor knowledge of stroke symptoms and when to call 911) among Blacks and Hispanics compared to whites may contribute to disparities in acute stroke treatment and outcomes. Improving stroke literacy may be a critical step along the pathway to reducing stroke disparities. The aim of the current study is to test a novel intervention to increase stroke literacy in minority populations in New York City.Design and MethodsIn a two-arm cluster randomized trial, we will evaluate the effectiveness of two culturally tailored stroke education films – one in English and one in Spanish – on changing behavioral intent to call 911 for suspected stroke, compared to usual care. These films will target knowledge of stroke symptoms, the range of severity of symptoms and the therapeutic benefit of calling 911, as well as address barriers to timely presentation to the hospital. Given the success of previous church-based programs targeting behavior change in minority populations, this trial will be conducted with 250 congregants across 14 churches (125 intervention; 125 control). Our proposed outcomes are (1) recognition of stroke symptoms and (2) behavioral intent to call 911 for suspected stroke, measured using the Stroke Action Test at the 6-month and 1-year follow-up.DiscussionThis is the first randomized trial of a church-placed narrative intervention to improve stroke outcomes in urban Black and Hispanic populations. A film intervention has the potential to make a significant public health impact, as film is a highly scalable and disseminable medium. Since there is at least one church in almost every neighborhood in the USA, churches have the ability and reach to play an important role in the dissemination and translation of stroke prevention programs in minority communities.Trial registrationNCT01909271; July 22, 2013
Journal of clinical trials | 2015
Olajide Williams; Ellyn Leighton-Herrmann; Alexandra DeSorbo; Mindy F. Hecht; Monique Hedmann; Saima Huq; William Gerin; Vernon Chinchilli; Gbenga Ogedegbe; James M. Noble
Objective Stroke is the fifth leading cause of death and the leading cause of serious long-term adult disability in the US. Acute stroke treatments with intravenous thrombolysis and endovascular therapy are proven to reduce disability, however a critical limitation on their effectiveness is the narrow time window for administration, which is 4.5 hours and 6 hours respectively from the onset of symptoms. Our overarching goal is to reduce pre-hospital delays to acute stroke treatments in economically disadvantaged minority communities where the greatest delays exist, using Hip Hop Stroke. Methods Hip Hop Stroke (HHS) is a school-based, child-mediated, culturally-tailored stroke communication multimedia intervention developed using validated models of behavior change and designed to improve stroke literacy (knowledge of stroke symptoms, the urgent need to call 911, and prevention measures) of 4th, 5th and 6th grade students and their parents residing in poor urban communities. Children in the intervention arm will receive the HHS intervention, while those in the attentional control arm will receive standardized nutrition education based on the USDAs MyPyramid program. Children will be trained and motivated to share stroke information with their parents or other adult caregiver. Both children and parents will complete a stroke knowledge assessment at baseline, immediately following the program, and at 3-months post-program. The primary outcome is the effect of the child mediation on parental stroke literacy. Conclusion Stroke literate children, a captive audience in school systems, may represent a viable channel for spreading stroke information into households of poor urban communities where mass media stroke campaigns have shown the lowest penetration. These children may also call 911 when witnessing a stroke in their homes or communities. The HHS program may highlight the potential role of children in the chain of stroke recovery as a strategy for reducing prehospital delays to acute stroke treatment.
Health Education & Behavior | 2013
Alexandra DeSorbo; James M. Noble; Michele L. Shaffer; William Gerin; Olajide Williams
Background. The audience response system (ARS) allows students to respond and interact anonymously with teachers via small handheld wireless keypads. Despite increasing popularity in classroom settings, the application of these devices to health education programming has not been studied. We assessed feasibility, engagement, and learning among children using an ARS compared with traditional pencil–paper formats, (ARS) for a stroke health education program. Method. We compared outcome data generated via an ARS-based intervention to pencil–paper controls, including test scores and missing data rates among 265 schoolchildren 9 to 11 years old participating in stroke education. Among 119 children, we evaluated the feasibility of ARS use and explored student motivation with a 10-item questionnaire. We assessed facilitator experience with both methods. Results. ARS use is feasible. Students reported having more fun (p < .001), increased attention (p < .001), participation (p < .001), and perceived learning outcomes (p < .001) compared with pencil–paper controls. Test scores showed highly positive improvement for both ARS and paper without additional benefits of ARS on learning. There was no difference in missing data rates (p < .001). Educators preferred the ARS. Conclusion. The use of an ARS among children is feasible and improves student and facilitator engagement without additional benefits on stroke learning.
Neurology | 2016
Olajide Williams; Ellyn Leighton-Herrmann; Alexandra DeSorbo; Joseph P. Eimicke; Amparo Abel-Bey; Lenfis Valdez; James M. Noble; Madeleine Gordillo; Joseph Ravenell; Mildred Ramirez; Jeanne A. Teresi; Girardin Jean-Louis; Gbenga Ogedegbe
Objective: We assessed the behavioral effect of two 12-minute culturally targeted stroke films on immediately calling 911 for suspected stroke among black and Hispanic participants using a quasi-experimental pretest-posttest design. Methods: We enrolled 102 adult churchgoers (60 black and 42 Hispanic) into a single viewing of one of the 2 stroke films—a Gospel musical (English) or Telenovela (Spanish). We measured intent to immediately call 911 using the validated 28-item Stroke Action Test in English and Spanish, along with related variables, before and immediately after the intervention. Data were analyzed using repeated-measures analysis of variance. Results: An increase in intent to call 911 was seen immediately following the single viewing. Higher self-efficacy for calling 911 was associated with intent to call 911 among Hispanic but not black participants. A composite measure of barriers to calling 911 was not associated with intent to call 911 in either group. A significant association was found between higher stroke symptom knowledge and intent to call 911 at baseline, but not immediately following the intervention. No sex associations were found; however, being older was associated with greater intent to call 911. The majority of participants would strongly recommend the films to others. One participant appropriately called 911 for a real-life stroke event. Conclusions: Narrative communication in the form of tailored short films may improve intent to call 911 for stroke among the black and Hispanic population.
Health Education & Behavior | 2016
Olajide Williams; Alexandra DeSorbo; Vanessa Sawyer; Donald Apakama; Michele L. Shaffer; William Gerin; James M. Noble
Objectives. We explored the effect of a culturally targeted calorie label intervention on food purchasing behavior of elementary school students. Method. We used a quasi-experimental design with two intervention schools and one control school to assess food purchases of third through fifth graders at standardized school food sales before and after the intervention (immediate and delayed) in schools. The intervention comprised three 1-hour assembly-style hip-hop–themed multimedia classes. Results. A mean total of 225 children participated in two baseline preintervention sales with and without calorie labels; 149 children participated in immediate postintervention food sales, while 133 children participated in the delayed sales. No significant change in purchased calories was observed in response to labels alone before the intervention. However, a mean decline in purchased calories of 20% (p < .01) and unhealthy foods (p < .01) was seen in immediately following the intervention compared to baseline purchases, and this persisted without significant decay after 7 days and 12 days. Conclusion. A 3-hour culturally targeted calorie label intervention may improve food-purchasing behavior of children.
Journal of health disparities research and practice | 2016
Olajide Williams; Ellyn Leighton-Herrmann; Mindy F. Hecht; Alexandra DeSorbo; William Gerin; Monique Hedmann; Rachel Shelton; Benjamin Tolchin; James M. Noble
Neurology | 2015
Olajide Williams; Amparo C. Abel-Bey; James M. Noble; Lenfis Valdez; Ellyn Leighton-Herrmann; Alexandra DeSorbo; Madeleine Gordillo; Joseph Ravenell; Mildred Ramirez; Jeanne A. Teresi; Girardin Jean-Louis; Olugbenga Ogedegbe