ASPO Abstracts
Characteristics of Home-Based Self-Sampling for Human Papillomavirus (HPV) Among Low-Income Women Using Conjoint Analysis
Category: Behavioral Science & Health Communication
Conference Year: 2021
Abstract Body:
Introduction
Home-based self-sampling for HPV testing may help to increase overall cervical cancer screening rates among
low-income women by overcoming barriers associated with provider-based screening. The purpose of this
study was to assess preferred characteristics for TYPE of HPV self-sampling kit (cervicovaginal or urine
collection), DELIVERY of the kit (mail, pharmacy pick-up, or clinic pick-up), RETURN of the kit (mail, pharmacy
drop-off, or clinic drop-off), and HPV RESULTS delivery (mail, phone call, or text message).
Methods
Data were gathered via an online survey from a sample of low-income women (household
income<$50,000)provided by Dynata (n=940). They evaluated scenarios that varied along 4 dimensions:
TYPE, DELIVERY, RETURN, and RESULTS. A fractional factorial design generated 9 representative scenarios
with varying characteristics along each dimension. Each scenario was rated on a 0-100 scale. Ratings-based
conjoint analysis (RBCA) created importance scores (IS) that showed how much each dimension contributed
to the ratings of the scenarios. Part-worth utilities (PWU) generated by RBCA indicated the relative preference
for a characteristic within each dimension.
Results
The women ranged in age from 30-65 (M=51). The most important dimension (IS=32.97) was DELIVERY, with
a preference for mail (PWU=1.94) or pharmacy pick-up (PWU=1.49) over clinic pick-up (PWU=-3.43). The next
most important decisional factor (IS=25.09) was RETURN, with a preference for clinic drop-off (PWU=1.5) and
mailed return (PWU=.5) over pharmacy drop-off (PWU=-2.31). Then test TYPE had an IS of 22.59 with a
preference for urine collection (PWU=1.84) over cervicovaginal collection (PWU=-1.84). The least important
decisional factor was RESULTS (IS=19.35), with participants preferring a phone call (PWU=147) over mailed
delivery of results (PWU=0.21) or text messages (PWU=-1.68).
Conclusions
Overall, the most preferred test was a urine test delivered by mail, dropped off at a clinic, with results
communicated by phone. Researchers could use these findings to better understand facilitators of, and
barriers to, self-testing protocols.
Keywords: HPV self-testing