Sociology Commons^™

Post-Acquisition Processing Confounds In Brain Volumetric Quantification Of White Matter Hyperintensities, Ahmed A. Bahrani, Omar M. Al-Janabi, Erin L. Abner, Shoshana H. Bardach, Richard J. Kryscio, Donna M. Wilcock, Charles D. Smith, Gregory A. Jicha

Neurology Faculty Publications

BACKGROUND: Disparate research sites using identical or near-identical magnetic resonance imaging (MRI) acquisition techniques often produce results that demonstrate significant variability regarding volumetric quantification of white matter hyperintensities (WMH) in the aging population. The sources of such variability have not previously been fully explored.

NEW METHOD: 3D FLAIR sequences from a group of randomly selected aged subjects were analyzed to identify sources-of-variability in post-acquisition processing that can be problematic when comparing WMH volumetric data across disparate sites. The methods developed focused on standardizing post-acquisition protocol processing methods to develop a protocol with less than 0.5% inter-rater variance.

RESULTS: A series …

Sexual Behaviours Of Adolescents In Creek Town, Cross River State, Nigeria, Kabiru K. Salami, Rowland E. Edet

Department of Sociology: Faculty Publications

Risky sexual behaviors of adolescents in Creek Town have not been fully profiled. This study investigated the sexual behaviors of adolescents and their various dimensions in Creek Town, in Cross River State, Nigeria. This cross-sectional survey design adopted multi-stage sampling procedure to administer a 112-items questionnaire to 422 adolescents, to elicit information on their sexual behaviors and practices. Four focus group discussion sessions were also conducted with in-school and out-of-school adolescents. The mean age of adolescents was 17 years. Majority (65.4%) of the adolescents were sexually active. The mean age at sexual debut was 15 years for both male and …