Pre-travel health awareness and perceptions of voluntary airport PCR testing during COVID-19: A cross-sectional study in Okinawa, Japan

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Objectives: During the COVID-19 pandemic, airport-based measures, such as fever screening and polymerase chain reaction (PCR) testing were implemented in Japan. Okinawa Prefecture introduced a voluntary airport PCR testing program for domestic travelers at Naha Airport (OKA). Their indirect behavioral effects on travelers remain underexplored. This study aims to describe self-reported pre-travel health awareness among participants in this program. Methods: In February-March 2021, we conducted a cross-sectional questionnaire survey among Naha Airport PCR test Project (NAPP) participants (n = 4545; March subset n = 1859). The survey assessed demographics, travel purpose, awareness of airport screening (fever screening and PCR testing), pre-travel health awareness, COVID-19 history, and symptoms. Logistic regression evaluated factors associated with self-reported symptoms in the March subset. Results: Among respondents aware of fever screening and PCR testing, 94.1% and 96.4%, respectively, reported increased attention to their physical condition before travel. Overall, 3.9% reported symptoms, mainly mild respiratory complaints. The proportion symptomatic varied by reason for testing; workplace-mandated testers reported fewer symptoms than family-motivated testers (adjusted odds ratio 0.36, 95% confidence interval 0.15-0.78). Conclusions: Awareness of voluntary airport screening measures was associated with greater self-reported pre-travel health awareness among voluntary testers. These findings may inform context-specific behavioral strategies aimed at promoting health-conscious travel during infectious disease outbreaks.

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