"I Should Know, But I Dare Not Ask": From Understanding Challenges in Healthcare Journeys to Deriving Design Implications for North Korean Defectors' Adaptation

Paper Title

"I Should Know, But I Dare Not Ask": From Understanding Challenges in Healthcare Journeys to Deriving Design Implications for North Korean Defectors' Adaptation

Publication Info

• Topic area: Healthcare communication challenges and technological interventions for displaced populations.
• Keywords: North Korean defectors, healthcare communication, AI-powered systems, cultural adaptation, linguistic barriers, psychological scaffolding, patient journey, trauma-informed design, displaced populations, healthcare technology.

Background and Problem

• Problem / challenge: North Korean defectors (NKDs) face significant challenges navigating South Korea's healthcare system, particularly during clinical consultations, due to linguistic, cultural, and psychological barriers. Existing tools for migrant healthcare fail to address these unique circumstances.
• Significance: Effective healthcare communication is critical for NKDs’ health outcomes and integration into South Korean society. Addressing these barriers can improve healthcare access and reduce disparities for displaced populations.
• Motivation and related work: Prior research has explored general migrant healthcare challenges and NKDs’ digital adaptation but has not adequately addressed healthcare-specific barriers. Existing tools lack behavioral scaffolding and fail to account for NKDs’ unique psychological and linguistic challenges, leaving a critical gap in support for this population.

Solution

• Proposed approach: MediBridge, a mobile AI-powered system, enables NKDs to rehearse medical consultations with a simulated doctor and generates personalized “Helper Notes” to support real-world interactions.
• Novelty:
  1. Empirical identification of NKDs’ healthcare challenges, particularly in clinical consultations.
  2. Development of MediBridge, an AI-powered rehearsal system with personalized feedback and tangible aids.
  3. Evidence of MediBridge’s effectiveness in improving communication capabilities and reducing social and cultural concerns.
  4. Design implications for healthcare technologies tailored to displaced populations with complex migration histories.
• Procedure and key techniques:
  1. Conducted formative interviews with 10 NKDs to identify barriers across an 8-step patient journey, focusing on clinical consultations.
  2. Designed MediBridge based on three goals: structured communication support, psychological scaffolding, and adaptive language support.
  3. Evaluated MediBridge with 15 NKDs using a three-condition study (pre-test baseline, Simple Version, MediBridge) to assess perceived communication capability and usability.

Results

• Concrete findings:
  • MediBridge improved perceived communication capability across six dimensions, achieving a mean score of 6.32 (on a 7-point scale) compared to 5.53 for the Simple Version and 4.47 for the baseline.
  • Significant improvements were observed in symptom expression, social/cultural concerns, and linguistic confidence.
  • MediBridge’s structured approach helped users identify essential information and reduced social anxieties.
• Advantage over baselines:
  • MediBridge outperformed the Simple Version in addressing social and cultural concerns (6.5 vs. 5.2, p = 0.003) and essential information identification (6.3 vs. 5.2, p = 0.014).
  • The Simple Version provided basic communication support but failed to address deeper psychological and cultural barriers.
• Experiments / evaluation:
  • Conducted a within-subjects study with 15 NKDs, comparing pre-test baseline, Simple Version, and MediBridge conditions.
  • Measured perceived communication capability, system usability (SUS scores: MediBridge 76.46, Simple Version 84.48), and user engagement through conversation logs and interviews.
• Limitations and future work:
  • Limited to NKDs in the Seoul metropolitan area; findings may not generalize to other regions or displaced populations.
  • Evaluations were conducted in controlled settings, leaving real-world effectiveness unexamined.
  • Future work includes in-the-wild deployments, longitudinal studies, and validation across diverse populations.

Summary

This study addresses the healthcare communication challenges faced by North Korean defectors (NKDs) in South Korea, identifying clinical consultations as a critical barrier. The authors developed MediBridge, an AI-powered system that enables users to rehearse medical interactions and generates personalized “Helper Notes.” Evaluations with 15 NKDs demonstrated significant improvements in perceived communication capability, particularly in symptom expression and reducing social and cultural concerns. The findings highlight the importance of tailored, trauma-informed design for displaced populations, offering actionable insights for healthcare technologies that support vulnerable groups navigating complex systems.