Kathleen Porter

Dr. Kathleen Porter


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 December 2017 in Journal of School Health
Verified
Journal Article
Closed access
PDF file
KPKathleen Porter
Kathleen Porter
PKPamela Koch
Pamela Koch
ICIsobel R. Contento
Isobel R. Contento


8 February 2018 in Health Communication
Verified
Journal Article
Closed access
KPKathleen Porter
Kathleen Porter
RARamine Alexander
Ramine Alexander
KPKatelynn M. Perzynski
Katelynn M. Perzynski
NKNatalie Kruzliakova
Natalie Kruzliakova
JZJamie M. Zoellner
Jamie M. Zoellner
Ensuring that written materials used in behavioral interventions are clear is important to support behavior change. This study used the Clear Communication Index (CCI) to assess the original and revised versions of three types of written participant materials from the SIPsmartER intervention. Materials were revised based on original scoring. Scores for the entire index were significantly higher among revised versions than originals (57% versus 41%, p < 0.001); however, few revised materials (n = 2 of 53) achieved the benchmark of ≥90%. Handouts scored higher than worksheets and slide sets for both versions. The proportion of materials scored as having “a single main message” significantly increased between versions for worksheets (7% to 57%, p = 0.003) and slide sets (33% to 67%, p = 0.004). Across individual items, most significant improvements were in Core, with four-items related to the material having a single main message. Findings demonstrate that SIPsmartER’s revised materials improved after CCI-informed edits. They advance the evidence and application of the CCI, suggesting it can be effectively used to support improvement in clarity of different types of written materials used in behavioral interventions. Implications for practical considerations of using the tool and suggestions for modifications for specific types of materials are presented.

21 October 2021 in BMC Public Health
Verified
Journal Article
Open access
PDF file
ETEsther J. Thatcher
Esther J. Thatcher
FCFabian Camacho
Fabian Camacho
RARoger Anderson
Roger Anderson
LLLi Li
Li Li
WCWendy F. Cohn
Wendy F. Cohn
JZJamie M. Zoellner
Jamie M. Zoellner
Background: Colorectal cancer (CRC) disparities vary by country and population group, but often have spatial features. This study of the United States state of Virginia assessed CRC outcomes, and identified demographic, socioeconomic and healthcare access contributors to CRC disparities. Methods: County- and city-level cross-sectional data for 2011–2015 CRC incidence, mortality, and mortality-incidence ratio (MIR) were analyzed for geographically determined clusters (hotspots and cold spots) and their correlates. Spatial regression examined predictors including proportion of African American (AA) residents, rural-urban status, socioeconomic (SES) index, CRC screening rate, and densities of primary care providers (PCP) and gastroenterologists. Stationarity, which assesses spatial equality, was examined with geographically weighted regression. Results: For incidence, one CRC hotspot and two cold spots were identified, including one large hotspot for MIR in southwest Virginia. In the spatial distribution of mortality, no clusters were found. Rurality and AA population were most associated with incidence. SES index, rurality, and PCP density were associated with spatial distribution of mortality. SES index and rurality were associated with MIR. Local coefficients indicated stronger associations of predictor variables in the southwestern region. Conclusions: Rurality, low SES, and racial distribution were important predictors of CRC incidence, mortality, and MIR. Regions with concentrations of one or more factors of disparities face additional hurdles to improving CRC outcomes. A large cluster of high MIR in southwest Virginia region requires further investigation to improve early cancer detection and support survivorship. Spatial analysis can identify high-disparity populations and be used to inform targeted cancer control programming.

2 April 2022 in Nutrients
Verified
Journal Article
Open access
PDF file
RLRachel A. Liebe
Rachel A. Liebe
LALeah M. Adams
Leah M. Adams
VHValisa Hedrick
Valisa Hedrick
ESElena Serrano
Elena Serrano
KPKathleen Porter
Kathleen Porter
SMSarah Misyak
Sarah Misyak
Food insecurity, which disproportionately impacts mothers, can have chronic consequences on physical and mental health. There is a relationship between food insecurity and mental health, but the relationship’s mechanisms are unclear. This study aimed to understand how mental health outcomes differ by food insecurity severity and race among Virginia mothers. A cross-sectional survey employed previously validated food security status measures, physical and mental health, social support, and food coping strategies. Results were analyzed using descriptive statistics, Spearman’s rank-order correlations, linear regression, and chi-squared with effect sizes. Overall, respondents (n = 1029) reported worse mental health than the U.S. average (44.3 ± 10.1 and 50, respectively). There was a large effect of food security on mental health (d = 0.6), with worse mental health outcomes for mothers experiencing very low food security (VLFS) than low food security (LFS; p < 0.001). There was a small effect of race on mental health (φc = 0.02), with Black mothers having better mental health than White mothers (p < 0.001). Compared to mothers experiencing LFS, mothers experiencing VLFS had less social support (d = 0.5) and used more food coping strategies, especially financial strategies (d = −1.5; p < 0.001). This study suggests that food-insecure mothers experience stressors and lack adequate social support, which is even more distinct for mothers experiencing VLFS.

30 July 2019 in JMIR mHealth and uHealth
Verified
Journal Article
Open access
MYMaryam Yuhas
Maryam Yuhas
KPKathleen Porter
Kathleen Porter
DBDonna-Jean Patterson Brock
Donna-Jean Patterson Brock
ALAnnie Loyd
Annie Loyd
BMBrittany A McCormick
Brittany A McCormick
JZJamie M Zoellner
Jamie M Zoellner
Background: A high consumption of sugar-sweetened beverages (SSBs) poses significant health concerns, particularly for rural adults and adolescents. A manner in which the health of both caregivers and adolescents can be improved is by developing innovative strategies that target caregivers as the agents of change. Sending text messages through mobile phones has been cited as an effective way to improve behavioral outcomes, although little research has been conducted in rural areas, particularly focusing on SSB intake. Objective: By targeting rural caregivers, this 2-phase study aimed to (1) understand caregivers’ perceptions and language preferences for SSB-related text messages to inform and refine message development and delivery and (2) evaluate the acceptability of text messages for SSB intake behavior change and examine short-term effects on SSB intake behavior. Methods: A convergent mixed methods design was used to systematically develop and pilot-test text messages with caregivers in Southwest Virginia. In phase 1, 5 focus groups that included a card-sorting activity were conducted to explore advantages/disadvantages, language preferences (ie, tone of voice, audience, and phrase preferences), and perceived use of text messages. In phase 2, caregivers participated in a 5-week text message pilot trial that included weekly educational and personalized strategy messages and SSB intake assessments at baseline and follow-up. Before the focus groups and after completing the pilot trial, caregivers also completed a pre-post survey that assessed SSB intake, SSB home availability, and caregivers’ SSB-related practices. Caregivers also completed individual follow-up telephone interviews following the pilot trial. Results: In phase 1, caregivers (N=33) reported that text messages were convenient, accessible, and easy to read. In addition, they preferred messages with empathetic and authoritative tones that provided useful strategies and stayed away from using absolute words (eg, always and never). In the phase 2 pilot trial (N=30), 87% of caregivers completed baseline and 77% completed follow-up assessment, suggesting a high utilization rate. Other ways in which caregivers reported benefiting from the text messages included sharing messages with family members and friends (80%), making mental notes (57%), and looking back at messages as reminders (50%). Caregivers reported significant improvements in home environment, parenting practices, and rulemaking around SSB (P=.003, P=.02, and P=.04, respectively). In addition, the frequency of SSB intake among caregivers and adolescents significantly decreased (P=.003 and P=.005, respectively). Conclusions: Spending time in the formative phases of text message development helped understand the unique perspectives and language preferences of the target population. Furthermore, delivering an intervention through text messages has the potential to improve caregiver behaviors and reduce SSB intake among rural caregivers and adolescents. Findings from this study were used to develop a larger bank of text messages, which would be used in a future study, testing the effectiveness of a text message intervention targeting SSB intake–related caregiver behaviors.