The study design was quasi-experimental, specifically a 2-group pretest-posttest design. The research was carried out for 6 weeks to investigate the effectiveness of the participatory and culturally based learning program for coronavirus prevention plus usual standard care for older adults with comorbid hypertension and diabetes. The study was registered at the Thai Clinical Trials Register (TCTR20250112007).

The sample group consisted of Muslim older individuals with comorbid hypertension and diabetes. It was divided into 2 groups: the experimental group, which lived in Tha It Subdistrict, Pak Kret District, and the control group, residing in Lahan Subdistrict, Bang Bua Thong District, Nonthaburi Province. The 2 areas were selected through simple random sampling from 19 Muslim communities of Nonthaburi province. Both subdistricts had comparable contextual characteristics.

To determine the sample size, the G*power program [22] was used to estimate the effect size from a study on the impact of a health literacy promotion program on disease prevention behaviors among older Thai Buddhists in Bangkok [17] and Phra Nakhon Si Ayutthaya [18], which yielded effect sizes of 4.52 and 3.02. This resulted in sample sizes of 7 and 14 for each group. Therefore, for this study, the effect size was estimated at 0.90, using a t test for the difference between 2 independent means (2 groups), with an alpha error probability of .05 and a power (1 – β error probability) of .95. The program calculated a sample size of 56, resulting in 28 individuals per group. To prevent sample loss, the researcher increased the sample size by 40%, resulting in 40 individuals per group.

Systematic random sampling was used to recruit older adults from the community. Eligible individuals were invited to participate in the program by community health volunteers, who visited every second household (ie, skipping one house) in the community.

Inclusion criteria were Muslim older adults aged 60‐80 years with comorbid hypertension and diabetes, residing in Tha It Subdistrict, Pak Kret District, or Lahan Subdistrict, Bang Bua Thong District, Nonthaburi Province, both male and female, without cognitive impairments, capable of understanding and communicating in Thai, and without significant thinking problems or depression. Exclusion criteria included participation for less than 6 consecutive weeks, prior coronavirus infection, serious illness preventing participation, or withdrawal from the program.

The experimental implementation tool consisted of a participatory and culturally based learning program to prevent coronavirus disease and enhance health care for older adults. This program was a set of activities aimed at controlling the factors that caused the spread of coronavirus disease and self-care for health, with a learner-centered approach. It focused on using the learning-by-doing method as the foundation for developing the learning process. It drew out the learners’ abilities and encouraged them to participate in teaching activities and think critically to solve problems. Second, a team of researchers thoughtfully developed the coronavirus prevention and health care manual. The content of food and exercise was adapted to Muslims. Third, videos titled “7 Steps of Hand Washing,” “Chair Exercises,” “Food for Hypertension and Diabetes,” and “Stress Control,” publicly shared on YouTube (Google LLC), were applied. Fourth, material and equipment such as masks, food models, salt meters, and PowerPoint (Microsoft Corp).

The data collection tool included a questionnaire on awareness, knowledge, and preventive behaviors regarding the coronavirus disease for older adults, which was developed by the researchers. It consisted of 4 sections: (1) general information: this section consisted of open-ended and closed-ended questions, totaling 15 items. (2) Awareness of preventing coronavirus infection and health care consisted of 15 items. The questions were a 5-point rating scale of least aware, somewhat aware, moderately aware, very aware, and most aware. (3) Knowledge of preventing coronavirus infection and health care, assessing memory and understanding of preventing coronavirus infection and health care, with 20 multiple-choice questions. The questions were in the format of correct-uncertain-incorrect. The interpretation of knowledge was divided into 3 levels according to the concept of Bloom et al [23] as follows: below 60% (0.00‐11.00 points) was little, 60%‐79.99% (12.00‐15.00 points) was moderate, and 80% and above (16.00‐20.00 points) was very good. (4) Preventive behaviors against coronavirus and health care, divided into 5 areas: prevention of coronavirus, dietary habits, exercise, stress management, and medication adherence, totaling 40 items. The questions were in the form of a 5-point rating scale: never practiced at all, practice occasionally, occasionally practice, almost always practice, and practice regularly. The interpretation of awareness and behaviors was least aware or practice (1.00‐1.50), somewhat aware or practice (1.51‐2.50), moderately aware or practice (2.51‐3.50), very aware or practice (3.51‐4.50), and most aware or practice (4.51‐5.00).

The participatory learning program and the questionnaire were validated by 5 experts in nursing, public health, medicine, or evaluation. The content validity indices of the awareness, knowledge, and behavior sections were 0.98, 0.99, and 0.96, respectively. The Cronbach α coefficients of awareness and behaviors were 0.89 and 0.86, respectively, while the KR-20 for knowledge was 0.86.

The program activities were based on Muslim culture and Kolb steps: experience, reflection and discussion, concept, and experimentation or application (Figure 1). The activities included 3 main components managed by the researcher: first, workshops were conducted for the experimental group of older adults at the Darul Aman School meeting room in Tha It Subdistrict, Pak Kret District, Nonthaburi Province. The 6-week program included workshops conducted 3 times, specifically on Fridays during the first, fourth, and sixth weeks, prior to the participants attending Friday prayers. The details of the workshop activities are presented in Table 1. In this table, each week began with a review and compilation of participants’ information and prior experiences.

Second, community education was conducted over a 6-week period, once a week on Fridays after prayers, from 1:30 PM to 2 PM (30 min per session), totaling 6 sessions. The aim was to prevent coronavirus infections within families and communities, particularly by protecting older adults and ensuring proper care for individuals with hypertension and diabetes. At the mosque, both the Imam and professional nurses—respected figures within the Muslim community—delivered sessions to raise awareness and disseminate health knowledge among individuals, families, and the broader community.

Third, community and family awareness were further enhanced using a public address system over the same 6-week period. Broadcasts were made twice a week, every Monday and Wednesday morning (10‐15 min per session), totaling 12 sessions. These broadcasts aimed to provide concise education on coronavirus prevention and health care management for individuals with chronic diseases and their families, promoting the integration of preventive behaviors into daily life.

Usual care for coronavirus prevention, provided by government employees, included the DMHTT strategy: social distancing (D), mask-wearing (M), handwashing (H), temperature checking (T), and testing (T). Medication, nutrition, exercise, mood management, and abstinence from alcohol and tobacco were the mainstays of care for diabetes and hypertension. Both the control group and the experimental group were subjected to these strategies.

After proceeding to request an ethics certificate for research involving human participants from the School of Nursing, Sukhothai Thammathirat Open University, the researcher requested permission from the Islamic Religious Organization, the Public Health Office, the District Municipality, and the Subdistrict Administrative Organization to conduct research in the setting. Coordinate with the subdistrict health promotion hospital to conduct the research in a sample group of older adults with hypertension and diabetes as an experimental and control group according to the inclusion criteria, totaling 40 people each. Work with Darul Aman School to set up the space for the 6-week program for the older adults that would be held there from January 13 to February 24, 2023. Nurses and local health volunteers served as study assistants and collected the data.

The data were analyzed using SPSS software (IBM Corp). General information, awareness, knowledge, and preventive behaviors were analyzed with descriptive statistics, including frequency, percentage, mean, and SD. The pre-experimental data were tested for normal distribution using the Kolmogorov-Smirnov test, following the assumptions of t test statistics. The variables of awareness and preventive behaviors were normally distributed, while knowledge did not follow a normal distribution. As a result, a nonparametric test was used to compare differences in knowledge data.

This study was approved by the Ethical Committee of the School of Nursing, Sukhothai Thammathirat Open University (Reference No. NS 1/2566, dated January 12, 2023) and registered with the Thai Clinical Trials Registry (TCTR20250112007). All participants provided written informed consent after being informed about the study’s objectives, procedures, potential risks and benefits, confidentiality measures, and their rights as research participants. Participation was voluntary, and individuals were given sufficient time to consider their involvement and discuss it with their families. Participants were provided with transportation allowance and refreshments, including snacks and lunch, during study activities. They were assured of their rights to withdraw at any time without consequence. All collected data were kept strictly confidential and used solely for research purposes in accordance with institutional and international ethical guidelines.

A total of 74 older adults who met the inclusion criteria attended the program as scheduled, with 39 participants assigned to the experimental group and 35 participants to the control group. At the end of the 6-week program, retention rates were 89.7% (n=35) in the experimental group and 91.4% (n=32) in the control group (Figure 2).

The demographic and health characteristics of participants are presented in Table 2. The majority of the experimental group was female (77%, 27/35) compared to 66% (21/32) in the control group. The average age was similar between groups (66.11 years in the experimental group and 68.25 years in the control group), with most participants aged 60‐65 years. Most were married and had completed primary education. A small proportion in the experimental group (9%, 3/35) had no formal education. Most participants were unemployed, though the experimental group had more employed individuals, mainly as casual laborers or housemaids.

The majority in both groups had been living with hypertension and diabetes for 6‐10 years, with the control group having had the conditions for about 4 years longer on average. Over half of the families in both groups had experienced coronavirus infection (57% in the experimental group and 75% in the control group), and nearly half of the older adults themselves had been infected. There was a statistical difference in occupation as well as the duration of hypertension and diabetes between the experimental and control groups at P<.01.

Before participating in the program, the experimental group had significantly lower mean knowledge scores than the control group (P<.01). However, after the intervention, the experimental group showed significantly higher knowledge scores compared to the control group (P<.01; Table 3).

Regarding awareness, there was no significant difference between the experimental and control groups before the program. However, the experimental group had significantly lower behavior scores than the control group at baseline (P<.01). Following the intervention, the experimental group demonstrated significantly higher levels of both awareness and preventive behaviors compared to the control group (P<.01; Table 3).

After participating in the program, the experimental group demonstrated a significant increase in knowledge regarding coronavirus prevention and health care compared to their preprogram scores. In contrast, the control group showed a significant decrease in mean knowledge scores (P<.01; Table 4).

In addition, the experimental group exhibited significant improvements in both awareness and preventive behaviors related to coronavirus following the intervention (P<.01). Meanwhile, the control group showed no significant changes from their preprogram levels (Table 4).

This study demonstrated that a participatory and culturally based learning program significantly enhanced awareness, knowledge, and preventive behaviors related to coronavirus and chronic disease care among vulnerable Muslim older adults in Thailand. The program was developed using Kolb experiential learning theory, which emphasized active participation through concrete experience, reflective observation, abstract conceptualization, and active experimentation [21]. The improved outcomes in the experimental group highlight the value of culturally tailored and learner-centered approaches in health promotion.

The knowledge, awareness, and practice included proper mask use, handwashing, ATK testing, DASH and low-carb diet selection, and tailored exercises such as arm swings and chair-based movements to strengthen calf muscles and improve glucose metabolism. While this study did not assess blood glucose levels or overall health outcomes, previous research demonstrated that activating the soleus muscle through low-intensity contractions while sitting significantly reduced postprandial glucose and insulin levels [24], suggesting that such localized muscular activities may support metabolic health in older adults with diabetes.

In alignment with prior studies [15-18,25], the inclusion of group discussion, skill-building, and culturally congruent practices fostered deeper engagement and behavior change. Moreover, the involvement of trusted community leaders—particularly the Imam—strengthened message acceptance, consistent with findings from diabetes education programs in Muslim communities [25,26].

A unique strength of this study was its integration of religious, cultural, and familial structures into the learning process. By conducting workshops in mosques before or after prayer and using public broadcasting systems in the community, the intervention reached not only the participants but also their families and neighbors. This expanded reach likely supported knowledge dissemination and encouraged family members to reinforce preventive practices at home, in line with previous studies showing the importance of social support in influencing older adults’ behaviors [27]. Also, the literature found that the level of understanding and positive information evaluation status associated with coronavirus protective behaviors of the Chinese older adults [28].

Although coronavirus is no longer a global emergency, the threat of future outbreaks of respiratory viruses remains. This program serves as a prototype for adapting culturally based, community-led interventions to promote preventive behaviors for other infectious diseases, such as influenza, respiratory syncytial virus, or emerging zoonoses. The program’s experiential and reflective nature also lends itself well to modifying content while maintaining the underlying structure, especially for communities where cultural values shape health behaviors.

However, careful adaptation is essential. For instance, video content must be reviewed for cultural appropriateness, background music should be avoided, and prayer times respected. Postprayer educational sessions must be concise due to time constraints. Furthermore, Islamic rituals—such as bowing during worship—cannot be altered, though modifications such as using a cloth or alternative greetings were accepted by some older adults. These findings underscore the need for an interdisciplinary, culturally sensitive approach. As Attum et al [26] emphasized, Muslims view health as a gift from God, with spiritual well-being often prioritized alongside physical health. This perspective shapes their response to illness and health interventions. Songwathana et al [29] similarly found that Muslim older adults grounded their health behaviors in spiritual meaning and a belief in living naturally and peacefully in old age.

This study was conducted in a specific Muslim community in Thailand, and thus, cultural and environmental factors may limit its generalizability to other regions or religious groups. Participants were selected by geographical clusters, which may have introduced selection bias. In addition, the program did not assess clinical outcomes such as blood pressure, blood glucose levels, or BMI, limiting insights into long-term health impacts.

Nurse practitioners and primary care teams can implement participatory and culturally responsive health education programs tailored to older adults with chronic diseases. Such programs should be extended over a longer period to allow for the measurement of clinical outcomes and behavior sustainability. Moreover, they can be adapted to address other infectious diseases in multicultural settings, particularly those affecting vulnerable populations with limited health access. This approach aligns with the expanded role of nurses in health promotion, community engagement, and chronic disease management during and beyond the coronavirus pandemic [30,31].

Participatory and culturally based learning programs have positively impacted older adults with hypertension and diabetes by enhancing their awareness, knowledge, and behaviors regarding coronavirus prevention and health care. Implementing similar initiatives in communities across Thailand could contribute to the long-term prevention of severe respiratory diseases.