INTRODUCTION
Korean long-term care hospitals (LTCHs) care for highly dependent older adults with severe frailty and a high prevalence of malnutrition.
1-3) LTCH care assistants (CAs), who provide most daily care, face workforce shortages, aging staff, and increasing reliance on foreign workers.
4,5) Unlike nursing homes, LTCHs lack legally mandated staffing standards and dedicated reimbursement for caregiving services.
6) This structural gap results in high patient-to-caregiver ratios, limiting the capacity to provide adequate and continuous care.
7) In this context, there is growing interest in using smart care technologies in Korean long-term care (LTC) settings to support care delivery and relieve frontline strain. One study reported that healthcare providers perceive smart care technologies as potentially useful for reducing physical burden and improving care efficiency.
8) This growing interest is consistent with international developments, where the introduction of assistive and smart care technologies has accelerated in response to population aging and chronic staffing shortages in LTC settings.
9) Examples include fall detection sensors, pressure ulcer prevention smart mattresses, automated transfer devices, digital continence management systems, and artificial intelligence (AI) enabled monitoring tools, which are designed to reduce preventable adverse events and alleviate repetitive physical tasks.
10,11) Qualitative research among nurses further indicates that, while the potential benefits of technologies such as smart mattresses are acknowledged, actual use in clinical practice depends heavily on usability, compatibility with workflow, and prior experience.
12)
The Integrated Care Support Act, scheduled to take effect in March, 2026 represents a major policy shift aimed at overcoming the fragmented, facility centered structure of Korea’s current LTC system. This legislation signals a transition from a treatment-oriented model focused on life prolongation to a community based, person-centered model that enables older adults to maintain dignity and age in place.
13) Such policy changes require new criteria for evaluating smart care technologies, emphasizing not only technical performance but also alignment with real clinical workflows, staffing constraints, and the needs of frontline healthcare providers. These considerations parallel the broader gerontechnology literature, which highlights that successful adoption depends on user perceptions, organizational readiness, and the degree to which technologies address actual sources of work burden.
14)
To the best of our knowledge, no previous study has examined occupation-specific preferences for smart care technologies across multiple LTCHs. Consequently, evidence remains limited regarding which categories of smart care technologies are perceived as most needed in LTCHs, how these preferences differ by occupation and institutional characteristics, and how work burden relates to these preferences. Although physicians, registered nurses (RNs), nurse assistants (NAs), and CAs perform distinct roles and experience different types and levels of work burden, no study to date has systematically examined how these occupation-specific burdens are related to perceived needs for smart care technologies in LTCHs. Clarifying these occupation-specific needs is essential for designing realistic, sustainable, and person-centered strategies for implementing smart care technologies.
To meet the growing care needs of an aging population, coordination between hospital- and community-based health, medical, and welfare services is essential.
15) In this context, 10 smart care technologies were included here: smart mattresses, all-in-one patient transfer robots, smart monitoring systems, radar-based fall detection devices, leg-care devices, CARE-net, wrist-worn bio-signal monitoring devices, large language model (LLM)-based dementia diagnosis tools, multimodal imaging devices, and smart diapers. These technologies align with the World Health Organization’s global strategy emphasizing digital solutions for continuous monitoring, early detection, and integrated care for aging populations.
16) Eight of these technologies addressed four key care domains in LTCHs: excretion management, pressure ulcer prevention, mobility support, and fall prevention. These domains were selected because they reflect common and clinically important care issues in LTCHs and are closely associated with nursing workload and patient safety risks.
17,18) In addition, the LLM-based diagnostic tool and CARE-net, a digital platform were specifically included to reflect the broader needs of integrated care.
This study aimed to examine healthcare providers’ work burden and perceived needs for these smart care technologies in LTCHs, and to explore how these measures differ according to occupation and hospital characteristics.
MATERIALS AND METHODS
Study Design and Participants
This study utilized a survey supplemented by focus group interviews (FGIs) to examine healthcare providers’ perspectives on the introduction of smart care technologies in LTCHs. A quantitative survey was conducted to assess overall awareness, perceived need, and readiness regarding smart care technologies.
Participants were recruited using convenience sampling from eight LTCHs located in different regions of Korea. To ensure diversity of the sample, participating hospitals were selected to reflect variations in bed capacity, geographic location (e.g., metropolitan and provincial areas), average monthly family fees, the presence of a rehabilitation service, and the proportion of single- and multi-bed rooms. Healthcare professionals working in these LTCHs, including physicians, RNs, NAs, and CAs, were eligible to participate in the study.
Survey on Perceived Needs and Work Burden
The structured online questionnaire used in this study was developed specifically to reflect the actual clinical environment of LTCHs. To ensure practical relevance, the survey items were derived based on a review of previous literature regarding routine care tasks and preliminary consultations with LTCH practitioners. The comprehensive questionnaire consisted of sections evaluating respondent demographics, basic dementia knowledge, work burden, and the acceptance of smart care technologies.
Preferences
The survey was conducted using a structured online questionnaire that assessed healthcare providers’ awareness, perceived importance, and preparedness regarding the implementation of smart care technologies. The survey was administered from 4 to 14 March 2025 to 114 healthcare professionals working in eight LTCHs. Participants included physicians, RNs, NAs, and CAs from each LTCH.
Survey items were rated on a 5-point Likert scale (1=very low, 5=very high).
The 10 categories of smart care technologies surveyed in this study were systematically selected to reflect the four critical domains mentioned above. They were as follows:
• Smart mattress: mattress having sensors to automatically perform patient repositioning, to prevent pressure ulcers.
• All-in-one patient transfer robot: A device designed to transfer patients from bed to wheelchair or toilet, preventing musculoskeletal disorders in CAs.
• Smart monitoring system: A monitoring display to check the patient's body temperature, heart rate, and overall status at a glance.
• Radar-based fall detection device: a device that uses radar to detect falls instantly by recognizing patient movements as point clouds without cameras.
• LEG-care device: A rehabilitation robot (wearable or stationary) that facilitates leg exercises.
• CARE-net: A central server and integrated mega-platform that aggregates all collected data (sleep, excretion, falls, vitals) enabling medical staff, guardians, and caregivers to monitor patient status collectively and links with the local community.
• Wrist-worn bio-signal monitoring device: A device to track the patient's vital signs (temperature, heart rate) and real-time location.
• LLM-based dementia diagnosis tool: A software technology where a LLM analyzes voice tone, vocabulary, and sentence structure to detect early signs of Alzheimer’s or mild cognitive impairment.
• Multimodal imaging device: A device integrating thermal and depth sensors to precisely visualize health conditions and assess the severity of pressure ulcers.
• Smart diapers: Diapers that utilize conductive sensors to detect excretion in real-time and visualize the status.
Work burden
Work burden was assessed using a four-item self-report scale developed for this study. Participants rated the extent to which they experienced (1) mental burden, (2) patient communication burden, (3) staff communication burden, and (4) family communication burden in their current work at LTCHs. Each item was rated on a 5-point Likert scale (1=very low, 5=very high), with higher scores indicating greater burden in that domain. For analyses, we used both domain-specific mean scores and an overall work burden score, calculated as the mean of the four items. Internal consistency of the four-item scale was excellent in this sample (Cronbach’s α=0.90). However, formal content validity assessment and pilot testing were not conducted.
Focus Group Interviews
FGIs were conducted to explore participants’ in-depth perceptions regarding smart care technologies. Participants were purposively selected from survey respondents who volunteered for the qualitative phase, ensuring representation across four occupational groups (physicians, RNs, NAs, and CAs). A total of 10 participants took part across two sessions (five distinct participants per session), with each session conducted at a different LTCH.
The researcher moderated the sessions using a semi-structured questionnaire. The moderator encouraged balanced participation by prompting quieter individuals with follow-up questions while respecting non-responses. All sessions were audio-recorded with prior written informed consent.
For data analysis, the audio recordings were initially transcribed using an AI speech-to-text service (NAVER CLOVA (NAVER Cloud Corp., Seongnam, South Korea)) and manually verified against the original audio by the researcher to ensure accuracy. Responses were then collated by each question. The researcher conducted a conventional content analysis to categorize these responses into broader themes.
Ethical Considerations
This study was reviewed and approved by the Institutional Review Board (IRB) of Chung-Ang University (Approval No. 104-2508-202409-HR-012). All procedures adhered to the ethical guidelines of the IRB and relevant privacy protection regulations. All participants received an explanation of the study purpose and procedures and then provided written informed consent. They were informed that they could withdraw from the study at any time without any disadvantage. The study was conducted in accordance with the ethical principles of the Declaration of Helsinki.
Data Analysis
We analyzed data using SPSS Statistics version 21.0 (IBM Corp., Armonk, NY, USA). Descriptive statistics were used to summarize participants’ characteristics and their perception and preference scores for smart care technologies. To assess whether perceived work burden in each domain differed from the neutral point on the 5-point Likert scale, we conducted one-sample t-tests separately for each occupational group. Differences in work burden between occupations were then analyzed using one-way analysis of variance (ANOVA), followed by Scheffé post-hoc tests when the omnibus F-test was significant. A two-sided p-value <0.05 was considered statistically significant. To compare the perceived importance of smart care technologies according to occupation and hospital characteristics, we first performed one-way ANOVA and independent-samples t-tests. Because preference scores were generally high across all professional groups and omnibus ANOVA F-tests for each technology were not statistically significant, we additionally examined within-occupation and within-hospital differences in rankings of the 10 smart care technologies using the nonparametric Friedman test for related samples and Kendall’s W coefficient of concordance. At the hospital level, exploratory simple linear regression analyses were conducted to identify predictors of overall technology demand. The overall technology perceived needs score was set as the dependent variable, while institutional characteristics (presence of a rehabilitation services, average monthly family fee) served as independent variables. Standardized regression coefficients (β) and coefficients of determination (R²) were reported.
DISCUSSION
To our knowledge, this is the first study to examine healthcare providers’ perceptions of multiple smart care technologies in LTCHs using a survey supplemented by focus group interviews. Our findings suggest that distinct patterns of work burden across occupations are associated with different technology needs (e.g., decision-support technology is primarily required for physicians, management technology for RNs, and robotics technology for CAs). First, physicians showed a high preference for the smart monitoring system, LEG-care, and CARE-net. This pattern may reflect the fact that physicians’ work typically centers on assessing patients’ medical status and making treatment decisions. Second, RNs most preferred the Smart Mattress, CARE-net, and the all-in-one patient transport robot. This pattern may reflect the core components of nursing work in Korean LTCHs. Third, NAs preferred fall detection devices, smart monitoring, and wrist-worn biometric monitoring devices. They provide routine daily care while simultaneously assisting nurses by performing ongoing observation, recording patient status, and executing basic treatments. This is interpreted as leading to a high preference for technologies that allow for the immediate detection of patient danger and tracking changes in medical status. Lastly, CAs preferred the all-in-one patient transport robot, smart mattress, and wrist-worn biometric monitoring devices. CAs, who had the highest mean age among the job categories and were primarily responsible for high-intensity physical tasks such as patient transfer, diaper changes, and repositioning for pressure ulcer prevention, reported the greatest physical fatigue.
Importantly, the qualitative FGI findings significantly extended these quantitative survey results by providing the contextual mechanisms behind the occupation-specific technology preferences. While the quantitative data established the statistical trends between high work burdens and specific technology needs, the qualitative data explained the why. For instance, while the survey demonstrated that CAs highly prioritized transfer robots and smart mattresses, the FGIs extended this by revealing that this preference is not merely about general fatigue, but a strategic response to the repetitive physical strain of managing patient restraints during diaper changes. Similarly, the high mental burden reported by RNs quantitatively was qualitatively contextualized as liability-related stress concerning fall accidents, which perfectly explains their strong demand for continuous smart monitoring.
19,20) Ultimately, the qualitative data did not challenge the quantitative findings, but rather enriched them, demonstrating that technology needs in LTCHs are driven by specific, structural clinical risks rather than simple convenience.
At the LTCH level, the pervasive decline in inpatients' ADLs necessitates preventive strategies.
17) As shown in
Fig. 2, smart mattresses, all-in-one patient transport robots, and smart monitoring systems consistently occupied the top tier of preferences across hospitals. This pattern likely reflects the clinical profile of LTCH inpatients, many of whom are bed-bound or have severe mobility limitations; consequently, healthcare providers showed particularly strong interest in technologies that can prevent pressure ulcers, support safe transfers between bed and wheelchair, and enable continuous monitoring at the bedside.
Taken together, these findings suggest that, in our sample of eight LTCHs, ward environment and cost structure may be more salient contextual factors for technology demand than the mere presence of a rehabilitation services. Although hospitals without a rehabilitation service tended to show higher demand in the regression analysis, Hospital E and Hospital B illustrate that “high-density, low-fee” versus “low-density, high-fee” configurations may shape staff perceptions more directly. Hospital E combined the lowest monthly family fee with an exclusively multi-bed ward structure and showed the highest overall technology demand, whereas Hospital B combined the highest monthly family fee with a relatively high proportion of private or semi-private rooms and showed the lowest demand. This contrast is consistent with the interpretation that crowded multi-bed environments and lower reimbursement levels may heighten concerns about workload and safety, increasing the perceived need for physical assistive technologies, while settings oriented toward more individualized care with higher per-patient fees may perceive less immediate pressure to adopt such technologies. However, these hospital-level analyses were exploratory and based on only eight facilities, and the observed associations should therefore be interpreted with caution.
Overall, these findings may be interpreted using concepts drawn from technology acceptance and implementation theories, including the Technology Acceptance Model (TAM) and the Unified Theory of Acceptance and Use of Technology (UTAUT).
21) Across both the quantitative and qualitative findings, smart care technologies were more likely to be valued when they were perceived as useful for reducing care burden and supporting safer care in everyday practice.
22) At the same time, adoption in LTCHs may depend not only on this perceived usefulness but also on facilitating conditions, such as staffing, budget, training, and organizational readiness. In this respect, technology demand in LTCHs appears to reflect both frontline clinical needs and the broader institutional context in which care is delivered.
This study has several limitations that should be considered when interpreting the findings.
First, the sample size was modest and based on convenience sampling of eight LTCHs. Second, most participants had limited or no direct experience with several of the smart care technologies evaluated in this survey. Subsequent research should examine changes in work burden and attitudes before and after real-world implementation of specific technologies in LTCH wards. Third, data were collected through a cross-sectional, self-administered online questionnaire, which is subject to self-report bias and social desirability effects. Fourth, although our questionnaire demonstrated adequate internal consistency, the work burden scale was newly developed for this study and did not undergo formal psychometric validation, including content validity assessment, pilot testing, or construct and criterion validity testing. Therefore, the work burden scores should be interpreted with caution as exploratory measures. Finally, the study focused on physicians, RNs, NAs, and CAs and did not include other key stakeholders; future research should incorporate a broader range of professional roles across different LTC systems.
In conclusion, healthcare providers in Korean LTCHs reported a high perceived need for smart care technologies, particularly prioritizing smart mattresses, all-in-one patient transfer robots, and smart monitoring systems. While overall demand was higher in institutions with lower fees and no rehabilitation services, specific technology preference rankings differed significantly by occupation according to their distinct work burdens.