Publications by authors named "Heather Pedersen"

Background: Digital testing services for sexually transmitted and blood-borne infections (STBBIs), such as GetCheckedOnline, experience significant user drop-offs. For example, 32% of GetCheckedOnline users needing testing at account creation do not test, constituting missed opportunities. We explored the influence of users' expectations and experiences of GetCheckedOnline's web design and implementation on missed opportunities.

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Objective: Marketed as a validity test that detects feigning of posttraumatic stress disorder (PTSD), the Morel Emotional Numbing Test for PTSD (MENT) instructs examinees that PTSD may negatively affect performance on the measure. This study explored the potential that MENT performance depends on inclusion of "PTSD" in its instructions and the nature of the MENT as a performance validity versus a symptom validity test (PVT/SVT).

Method: 358 participants completed the MENT as a part of a clinical neuropsychological evaluation.

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Background: Evidence of long-term impacts of COVID-19-related public health restrictions on digital sexually transmitted and blood-borne infection (STBBI) testing utilization is limited. We assessed these impacts on GetCheckedOnline (a digital testing resource for STBBIs) relative to all STBBI tests in British Columbia (BC).

Methods: Interrupted time series analyses were conducted using GetCheckedOnline program data comparing monthly test episodes (STBBI tests per requisition) among BC residents, stratified by BC region, and testers' sociodemographic and sexual risk profiles, for the prepandemic (March 2018-February 2020) and pandemic periods (March 2020-October 2021).

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Effective approaches to improve coverage of self-collected human papillomavirus (HPV)-based cervix screening (SCS) as well as attendance at treatment for HPV-positive participants are needed to inform policy on optimal integration of cervical cancer screening programs within existing infrastructure in low-resource settings. ASPIRE Mayuge was a pragmatic cluster-randomized trial in rural Mayuge district, Uganda, comparing the superiority of two recruitment implementation strategies for SCS: Door-to-Door versus Community Health Day. Villages were randomized (unblinded) to a strategy, and participants aged 25-49 years with no previous history of hysterectomy or treatment for cervical cancer or pre-cancer were eligible.

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Background: Anxiety is common among sexual health service users. Accessible, anonymous online sexual health services may offer opportunities to connect users with mental health services, but little is known about anxiety in these settings. We sought to characterise expressions of anxiety among chat users and nurse responses to anxiety.

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Objectives: We assessed COVID-19 pandemic impacts on accessing needed sexual health services, and acceptability of alternative service delivery models, among sexual health service clients in British Columbia (BC), Canada.

Methods: We administered an online survey on 21 July-4 August 2020 to clients using a provincial STI clinic or internet-based testing service, GetCheckedOnline, in the year prior to March 2020. We used logistic regression to identify factors associated with having unmet sexual health needs (ie, not accessing needed services) during March-July 2020 and the likelihood of using various alternative service models, if available.

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We assessed the performance, stability, and user acceptability of swab-independent self-collected saliva and saline mouth rinse/gargle sample types for the molecular detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in adults and school-aged children. Outpatients who had recently been diagnosed with COVID-19 or were presenting with suspected COVID-19 were asked to have a nasopharyngeal (NP) swab collected and provide at least one self-collected sample type. Participants were also asked about sample acceptability using a five-point Likert scale.

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Objective: To understand the knowledge, preferences, and barriers for self-collected cervical cancer screening (SC-CCS) and follow-up care at the individual and health system level to inform the implementation of community-based SC-CCS.

Methods: Surveys and focus group discussions (FGDs) with women and FGDs with healthcare providers were conducted in Uganda. Survey data were analyzed using frequencies and FGD data were analyzed using thematic content analysis.

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Objective: To explore sexually transmitted infection (STI) clinic client attitudes and preferences towards STI vaccines and STI vaccine programming in an urban clinic setting.

Methods: A 31-item questionnaire was administered during check-in by clinic clerical staff at two STI clinics in Vancouver, Canada. Demographic characteristics and preferences were summarised descriptively.

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Background: Cervical cancer is almost entirely preventable through vaccination and screening, yet remains one of the 'gravest threats to women's lives' according to the World Health Organization. Specific high-risk subtypes of human papillomavirus (HR-HPV) are well-established as the primary cause of cervical cancer. Uganda has one of the highest cervical cancer incidence rates in the world (54.

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Background: To understand real-world human papillomavirus (HPV) vaccine impact, continuous evaluation using population-based data is critical. We evaluated the early impact of the school-based HPV immunization program on cervical dysplasia in women in British Columbia, Canada.

Methods: Data linkage was performed using records from provincial cervical screening and immunization registries.

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Article Synopsis
  • - The study assessed the impact of a school-based HPV vaccination program introduced in British Columbia in 2008 on the sexual behaviors of adolescent girls, using data from the BC Adolescent Health Survey collected in 2003, 2008, and 2013.
  • - Results showed a decrease in the proportion of girls reporting sexual intercourse (from 21.3% in 2003 to 18.3% in 2013) and a drop in early sexual activity and substance use before intercourse, with no change in the number of sexual partners.
  • - Overall, the data indicated that since the HPV vaccination program's implementation, risky sexual behaviors among adolescent girls either decreased or remained stable, suggesting no connection between HPV vaccination and increased
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Purpose: This preliminary study explores Ugandan men's knowledge and attitudes about human papillomavirus (HPV), cervical cancer, and screening.

Methods: A local physician led an education session about cervical cancer for 62 men in Kisenyi, Kampala in Uganda. Trained nurse midwives administered surveys to assess knowledge and attitudes before and after the education session.

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Article Synopsis
  • Cervical cancer is a major health issue for women in Uganda, but screening can help prevent it; a community-based self-collection method for HPV testing was proposed to make screening more accessible.
  • The ASPIRE trial compared two screening methods: self-collected HPV testing facilitated by community health workers and clinic-based visual inspection, evaluating their effectiveness and cost.
  • The results indicated that the HPV screen-and-treat strategy was the most effective and cost-effective option, significantly reducing cervical cancer risk while costing around $130 per year of life saved.
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The incidence of cervical cancer in low- and middle-income countries (LMICs) is five times higher than that observed in high-income countries (HICs). This discrepancy is largely attributed to the implementation of cytology-based screening programmes in HICs. However, due to reduced health system infrastructure requirements, HPV testing (self- and provider-collected) and visual inspection with acetic acid (VIA) have been proposed as alternatives that may be better suited to LMICs.

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Background: Women living with HIV (WHIV) are disproportionately impacted by cervical dysplasia and cancer. The burden is greatest in low-income countries where limited or no access to screening exists. The goal of this study was to describe knowledge and intentions of WHIV towards HPV self-collection for cervical cancer screening, and to report on factors related to HPV positivity among women who participated in testing.

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Introduction: Community engagement and education can improve acceptability and participation in clinical trials conducted in Kisenyi, Uganda. In preparation for a randomized controlled trial exploring different methods for cervical cancer screening, we explored optimal engagement strategies from the perspective of community members and health professionals.

Methods: We conducted key informant interviews followed by serial community forums with purposeful sampling and compared the perspectives of women in Kisenyi (N = 26) to health-care workers (HCW) at the local and tertiary care center levels (N = 61) in a participatory, iterative process.

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Background: High-risk HPV DNA testing has been proposed as a primary tool for cervical cancer screening (HPV-CCS) as an alternative to the Papanicolaou cytology- method. This study describes factors associated with women's intentions to attend cervical cancer screening if high-risk HPV DNA testing (HPV-CCS) was implemented as a primary screening tool, and if screening were conducted every 4 years starting after age 25.

Methods: This online survey was designed using the Theory of Planned Behaviour to assess factors that impact women's intentions to attend HPV-CCS among women aged 25-69 upon exit of the HPV FOCAL trial.

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Objectives: To compare two cervical cancer screening methods: community-based self-collection of high-risk human papillomavirus (HR-HPV) testing and visual inspection with acetic acid (VIA).

Methods: Pilot randomised controlled trial of 500 women aged 30-65 in the community of Kisenyi, Uganda. Women randomised to self-collection-based HR-HPV testing provided a cervico-vaginal swab for HR-HPV, and results were provided by phone after laboratory testing.

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Introduction: To support control of sexually transmitted infections (STI), British Columbia is exploring data sharing through a provincial electronic health record (EHR). Increased electronic data sharing among healthcare providers may be a barrier for clients of STI clinics where expectations of privacy and confidentiality are heightened.

Methods: A survey to assess attitudes towards sharing of personal health information through a provincial EHR was conducted with a convenience sample of clients attending an STI clinic in Vancouver.

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Within the psychology supervision literature, most theoretical models and practices pertain to general clinical or counseling psychology. Supervision specific to clinical neuropsychology has garnered little attention. This survey study explores supervision training, practices, and perspectives of neuropsychology supervisors.

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We analyzed data from 74 male collegiate hockey players. Each athlete's season began with a baseline administration of the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) neuropsychology test battery. Fourteen athletes sustained a sport-related head injury and were readministered the test to assess the impact of the injury.

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Prior research has established positive outcomes of health optimism (appraising one's health as good despite poor objective health (OH)) and negative outcomes of health pessimism (appraising health as poor despite good OH), yet little is known about their contributors. We examined the role of psychosocial factors (life event stress, depression, dispositional optimism, perceived social support) in health realism (appraising health in accordance with OH), optimism and pessimism among 489 older men and women. We then accounted for the psychosocial factors when examining multiple health correlates of health realism, optimism and pessimism.

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Learning effects were assessed for the block design (BD) task, on the basis of variation in 2 stimulus parameters: perceptual cohesiveness (PC) and set size uncertainty (U). Thirty-one nonclinical undergraduate students (19 female) each completed 3 designs for each of 4 varied sets of the stimulus parameters (high-PC/high-U, high-PC/low-U, low-PC/high-U, and low-PC/low-U), ordered randomly within a larger set of designs with mixed stimulus characteristics. Regression analyses revealed significant, although modest, learning effects in all conditions.

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