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Biomedical subjects

Anna M McDaniel

Publications and source records attributed to Anna M McDaniel.

11 recordsLinked to original sources
PubMed2006

Classification of smoking cessation status with a backpropagation neural network.

This study examined the ability of a backpropagation neural network (BPNN) classifier to distinguish between current and former smokers in the 2000 National Health Interview Survey (NHIS) sample adult file. The BPNN classifier performance exceeded that of random chance, with asymmetric 95% confidence intervals for A(z) (area under receiver operating characteristic curve)=(0.7532, 0.7790). Separation of current and former smokers was imperfect, as illustrated by the receiver operating characteristic (ROC) curve. Additionally, performance did not exceed that of a comparison classifier created using logistic regression. Attribute subset selection identified three novel attributes related to smoking cessation status. This study establishes the ability of backpropagation neural networks to classify a complex health behavior, smoking cessation. It also illustrates the hypothesis-generating capacity of data mining methods when applied to large population-based health survey data. Ultimately, BPNN classifiers of smoking cessation status may be useful in decision support systems for smoking cessation interventions.

Algorithms↗
PubMed2005

An integrated computer-based system to support nicotine dependence treatment in primary care.

The purpose of this study was to develop, implement, and evaluate the feasibility of an integrated computer-based system for tobacco-user identification and smoking cessation intervention for primary care patients in a medically indigent, managed care population. Interactive voice response (IVR) technology was used to screen for tobacco use prior to scheduled primary care visits at two inner-city clinics. The IVR system placed calls to 2,039 patients scheduled for clinic visits, and 1,086 (53%) patients completed the automated tobacco-use question set. Current smokers were identified in 421 (39%) of the calls. Computer-generated reminders for clinicians that incorporated information obtained from the automated calls were placed on all smokers' encounter forms. In a post-visit interview of 120 smokers, 58 participants (48%) reported that they discussed smoking cessation with their provider. Some 71% of participants agreed that use of the IVR system to obtain information was a "good way for patients to give information about their health to doctors." Automated capture of patient-reported data via IVR technology is a potentially useful strategy for tobacco-use screening in primary care.

Algorithms↗
PubMed2004

Design and testing of an interactive smoking cessation intervention for inner-city women.

The purpose of this study was to design and test the usability of a computer-mediated smoking cessation program for inner-city women. Design and content were developed consistent with principles of user-centered design. Formative and summative evaluation strategies were utilized in its testing. The summative evaluation was designed to test usability in a naturalistic environment. A sample of 100 women who receive care at an inner-city community health center participated in the study. Average time for completing the computer program was 13.9 minutes. Participants reported a high level of satisfaction with usability of the program. Standardized instruments to measure cognitive processes of change related to smoking were completed at baseline and at 1 week. Participants reported a decrease in favorable attitudes toward smoking (P=0.014) and an increase in cognitive change processes at follow-up (P=0.037). These results indicate that interactive computer technology is acceptable to, and potentially useful for, promoting smoking cessation in low-income women.

Adult↗
PubMed2002

Needs assessment in a spina bifida program: a comparison of the perceptions by adolescents with spina bifida and their parents.

The primary purpose of this study was to describe and compare medical, psychosocial, and economic needs of adolescents and young adults with a neural tube defect and their parents. A secondary aim of the study was to establish the psychometric properties of a previously published needs assessment tool. Forty-nine adolescent and 59 parents receiving services from a comprehensive spina bifida program at a large children's hospital completed a needs assessment survey designed to measure perceived needs for health and social services. The Needs Assessment Questionnaire includes 8 subscales (Accessibility/Transportation/Independence, Financial Concerns, Medical Resources, Communication/Acceptance of individuals with spina bifida, Family/Socialization, Education of others regarding spina bifida, School Services, and Vocational Training). Factors related to perceived needs and differences between adolescents and parents were explored. There was a significant difference ( <.05) between parents and adolescents in 6 of the 8 subscales. On the remaining 2 subscales, differences between parents and adolescents approached significance. In all areas of needs for services, parents were less satisfied with the delivery of services and reported that needs were not being met. A significant negative correlation between age of the adolescent and perceived needs related to Transportation/Independence ( = -0.35) and School Services ( = -0.31) was found. Parents with more than a high school education perceived significantly greater needs for Vocational Training than those with less education ( = -2.1, =.04). Identification of medical, psychosocial, and economic needs of adolescents with a neural tube defect and their families has implications for quality improvement and program development.

Adolescent↗
PubMed2002

Usability testing and outcomes of an interactive computer program to promote smoking cessation in low income women.

The purpose of this study was to develop and test an interactive computer-mediated smoking cessation program for inner-city women. A non-probability sample of 100 women who receive care at an inner-city community health center in Indianapolis participated in the usability study. Women completed the computer program in the clinic following baseline data collection. Next, participants completed a brief satisfaction instrument. Data on cognitive and behavioral outcomes of the program were obtained by telephone interview one week later. Satisfaction with the program was high (mean satisfaction score was 60.2 with 70 indicating highest possible satisfaction). Average time for completing the computer program was 13.6 minutes. Overall, 79% of the participants reported at least one behavioral change related to smoking. The results indicate that interactive computer technology may be useful for promoting smoking cessation in low-income women.

Adolescent↗