Guadalupe X. Ayala
University of North Carolina at Chapel Hill
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Featured researches published by Guadalupe X. Ayala.
Health Psychology | 2005
John P. Elder; Guadalupe X. Ayala; Nadia R. Campbell; Donald J. Slymen; Eva T. Lopez-Madurga; Moshe Engelberg; Barbara Baquero
Participants (N=357) were randomly assigned to 1 of 3 conditions: lay health advisor (promotora) plus tailored print materials, tailored print materials only (tailored), or off-the-shelf print materials (control). The primary outcomes were calories from fat and daily grams of fiber. Secondary outcomes included total energy intake, total and saturated fat intake, and total carbohydrates. Adjusted for baseline values, calories from fat were 29%, 30%, and 30% for the promotora, tailored, and control conditions, respectively, and grams of fiber consumed were 16 g, 17 g, and 16 g. Significant Condition X Time interactions were not observed between baseline and 12-weeks postintervention. The LHA condition achieved significantly lower levels of energy intake, total fat and saturated fat, and total carbohydrates. The relative superiority of the promotora condition may derive from the personal touch achieved in the face-to-face interactions or from the womens use of print materials under the promotoras guidance.
American Journal of Preventive Medicine | 2002
John P. Elder; Alan J. Litrownik; Donald J. Slymen; Nadia R. Campbell; Deborah Parra-Medina; Sunny Choe; Virginia Lee; Guadalupe X. Ayala
OBJECTIVE Evaluate a community-based tobacco/alcohol use-prevention program group compared with an attention-control condition (first aid/home safety) group. METHODS A total of 660 adolescents and 1 adult caregiver for each were recruited through the Migrant Education Program to participate in an 8-week intervention. Random assignment to the two groups occurred in 22 schools. Seventy 8-week intervention groups (37 tobacco/alcohol and 33 attention-control) were conducted. Assessments occurred at baseline, immediate post-intervention, and 1- and 2-year follow-ups. Susceptibility to smoking and alcohol as well as smoking and drinking over the past 30 days were the primary outcomes of interest. RESULTS Following intervention, no between-group differences in smoking or drinking were significant. Thirty-day smoking started and remained at very low levels, with the highest group prevalence at any measurement period being 4.7% and the lowest 2.5%. Those considered susceptible to smoking dropped by nearly 40% in the attention-control group and by 50% in the intervention group from baseline to the final follow-up. (The overall reduction from post-test to final follow-up was statistically significant.) Less-acculturated children were less likely to report drinking in the past 30 days. CONCLUSIONS The current intervention was not demonstrated to be effective in preventing cigarette or alcohol consumption. This perhaps is due to very low baseline levels of smoking and drinking in the migrant youth participants.
Journal of Pediatric Psychology | 2009
Guadalupe X. Ayala; Karin Yeatts; Delesha M. Carpenter
OBJECTIVE Examine correlates of asthma self-management among 12,154 adolescents with physician-diagnosed asthma. METHODS All 7th and 8th grade students in North Carolina completed a survey to assess asthma prevalence and self-management behaviors among those with asthma. RESULTS Adolescents who were allowed to carry their inhaled medication at school, shown how to use a peak flow meter, and had access to more asthma care resources were more confident that they could prevent an asthma exacerbation. Adolescents who were allowed to carry their inhaled medication at school and who had a private doctor were more confident that they could control their symptoms. Adolescents taking anti-inflammatory medicine were less confident that they could prevent an exacerbation and control their symptoms. CONCLUSIONS Various indicators of autonomy and control were associated with greater self-efficacy for managing asthma. Adolescents who require anti-inflammatory medicines would benefit from additional intervention efforts to improve their asthma management self-efficacy.
Social Science & Medicine | 2004
Kelly R. Evenson; Olga L. Sarmiento; Guadalupe X. Ayala
Journal of Interprofessional Care | 2004
J. Matt Streng; Scott D. Rhodes; Guadalupe X. Ayala; Eugenia Eng; Ramiro Arceo; Selena Phipps
Journal of School Health | 2006
Guadalupe X. Ayala; Delesha Miller; Edwina Zagami; Connie Riddle; Stephanie Willis; Donna King
Womens Health Issues | 2004
Guadalupe X. Ayala; John P. Elder; Nadia R. Campbell; Donald J. Slymen; Nupur Roy; Moshe Engelberg; Theodore G. Ganiats
Archive | 2001
Guadalupe X. Ayala; John P. Elder
Archive | 2012
Betsy Sleath; Delesha M. Carpenter; Catherine Slota; Dennis M. Williams; Gail Tudor; Karin Yeatts; Guadalupe X. Ayala
Revista Latinoamericana de Medicina Conductual / Latin American Journal of Behavioral Medicine | 2011
Guadalupe X. Ayala; José S. Loredo; Elva M. Arredondo; Kevin Patrick; John P. Elder