[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100492411":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":26,"centralContacts":30,"locations":41,"responsibleParty":66,"collaborators":26,"id":68,"slug":69,"hasResults":70,"nctId":71,"briefTitle":72,"officialTitle":73,"acronym":26,"eligibilityCriteria":74,"healthyVolunteers":75,"sex":76,"minAge":77,"maxAge":26,"enrollmentInfo":78,"targetDuration":26,"studyType":81,"phases":82,"briefSummary":84,"conditions":85,"keywords":87,"overallStatus":44,"whyStopped":26,"lastUpdateSubmitDate":91,"lastUpdatePostDateStruct":92,"startDateStruct":95,"completionDateStruct":97,"leadSponsor":99,"locationsCount":100},{"fullName":5,"class":6},"The University of Hong Kong","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Control Group","ACTIVE_COMPARATOR","Participants who are allocated to the control group will receive a pamphlet about recommendation for influenza vaccines, pneumococcal vaccines, and COVID-19 vaccines (if appropriate) for older people using information from Hong Kong Department of Health. This group will receive six control telephone care visits over six weeks. We will purposively balance the characteristics of the student helpers who do the control telephone visits and the patient activation interviews. Each control telephone care visit will be around 5-10 min during which the student helper will give general guidelines about dietary health and exercise for older people. The control messages are mainly educational and designed using information derived from the websites of Hong Kong Department of Health. In the last telephone care visit, the interviewer will give a summary for how to live a healthy lifestyle and a reminder of taking the recommended vaccinations for older people shown in the pamphlet.",[13],"Behavioral: Control Group",{"label":15,"type":16,"description":17,"interventionNames":18},"Intervention Group","EXPERIMENTAL","Intervention development and delivery The interventions will involve deliver a booklet designed based on MMA and six telephone interviews for patient activation.\n\nDesign of booklet for older people's preventive care: The booklet will be framed as one series of \"Positive aging via preventive care\"-vaccination. According to MMA, the booklet will be aimed to translate expert knowledge into information that can fit to older people's mental models (e.g., misperceptions and knowledge deficits revealed in our previous qualitative studies) regarding vaccinations to facilitate cognitive process of the information.\n\nPatient activation sections: We will design six telephone-based patient activation sections with accommodation for older people's mental models and decision-making preference. The motivation interviewing (MI) techniques will be incorporated into the design of patient activation sections.",[19],"Behavioral: MMA and patient activation intervention scheme",[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"BEHAVIORAL","MMA and patient activation intervention scheme","Design of booklet for older people's preventive care: We propose that the booklet will include 8 main topics based on what experts and current academic literature believe are important for encouraging older people's preventive care utilization. To add the social norms-related cues for the later three topics of the booklet, one qualitative study on older adults who are active in preventive care is needed. Therefore, we will interview \\~20 older adults aged 70 years or above who are active in taking preventive care. We will conduct one-to-one in-depth interview to explore how participants overcome difficulties during decision making for vaccination and their positive feelings after making achievements. We will also explore and identify older adults who have a positive future perspective.\n\nPatient activation sections: . Four undergraduate medical students will be trained as the coaches to deliver the patient activation sections over six weeks. Each section will be around 20 min.",[15],null,{"type":22,"name":9,"description":28,"armGroupLabels":29,"otherNames":26},"Participants in the control group will receive a pamphlet about recommendation for influenza, pneumococcal, and COVID-19 vaccines (if appropriate) for older people using information from Hong Kong Department of Health. As a control for the patient activation interviews, the control group will also be informed that they will join our \"telephone-based elderly care project\" by the end of the baseline assessment but instead of receiving the patient activation interviews, this group will receive six control telephone care visits over six weeks. Each control telephone care visit will be around 5-10 min during which the student helper will give general guidelines about dietary health and exercise for older people. The control messages are mainly educational and designed using information derived from the websites of Hong Kong Department of Health.",[9],[31,37],{"name":32,"role":33,"phone":34,"phoneExt":35,"email":36},"Qiuyan Liao","CONTACT","39179289","+852","qyliao11@hku.hk",{"name":38,"role":33,"phone":39,"phoneExt":35,"email":40},"Yuyi Chen","39179056","yuyiccc@hku.hk",[42],{"facility":43,"status":44,"city":45,"state":46,"zip":47,"country":45,"countryCode":48,"cosmosGeoPoint":49,"geoPoint":54,"contacts":55},"School of Public Health, The University of Hong Kong","RECRUITING","Hong Kong","China","HKG","HK",{"type":50,"coordinates":51},"Point",[52,53],114.17469,22.27832,{"lat":53,"lon":52},[56,59,63],{"name":57,"role":33,"phone":58,"phoneExt":26,"email":36},"QIUYAN Prof. Liao","(852)39179289",{"name":60,"role":33,"phone":61,"phoneExt":26,"email":62},"Jianying OU","(852)39179056","rileyou@hku.hk",{"name":64,"role":65,"phone":26,"phoneExt":26,"email":26},"Qiuyan Prof. Liao","PRINCIPAL_INVESTIGATOR",{"type":65,"investigatorFullName":32,"investigatorTitle":67,"investigatorAffiliation":5,"oldNameTitle":26,"oldOrganization":26},"Principal Investigator","100492411","older-peoples-preventive-care-utilization-100492411",false,"NCT05691790","Older People's Preventive Care Utilization","Empowering Older People's Preventive Care Utilization Through Mental Model Approach and Patient Activation Approach: a Randomized Control Trial for Promoting Vaccination Uptake","Inclusion Criteria:\n\n* Community-dwelling older persons aged 70 years who did not persistently receive seasonal influenza vaccine over the past three years (2020-2022) and\u002For have never received the pneumococcal vaccine (one dose of the 23-valent pneumococcal polysaccharide vaccine (23vPPV) or the 13-valent pneumococcal conjugate vaccine (PCV13)).\n* Being able to communicate with Cantonese, or Mandarin (the two main spoken language in Hong Kong) and being able to read Chinese.\n* Inclusion criteria for the informant include age above 18 and can understand Cantonese or Mandarin\n\nExclusion Criteria:\n\n* having psychiatric disorders, dementia, or other cognitive difficulties which impede communication or understanding of the intervention and having functional disabilities which impede access to health care services.\n* subjects who had medical contraindications for immunization.",true,"ALL","70 Years",{"count":79,"type":80},270,"ESTIMATED","INTERVENTIONAL",[83],"NA","Objectives: To empower older people's decision making for taking the recommended vaccines including seasonal influenza vaccines, pneumococcal vaccines, and COVID-19 vaccine (if it is recommended annually).\n\nHypotheses to be tested: The interventions designed using Mental Models Approach and Patient Activation Approach will promote older people's confidence in knowledge and skills regarding vaccination decisions, perceived self-efficacy in self-management of health, positive emotional engagement with vaccination decisions and a positive future time perspective which will subsequently promote their uptake of the recommended vaccines.\n\nDesign and subjects: This will be a two-arm randomized control trial. Subjects will be community-dwelling older people aged 70 years or above.\n\nInstruments: A questionnaire will be used to collect baseline data before the interventions and follow-up data 1 months and 4 months, respectively, after the end of interventions.\n\nInterventions: Interventions included one booklet to communicate information about preventive care by bridging expert knowledge and older people's existing mental models, and six patient activation sections conducted over telephone. One patient activation section will be delivered per week by trained medical students.\n\nMain outcome measures: Main outcomes will be participants' uptake of the three recommended vaccines assessed at 1 month and 4 months after the end of interventions.\n\nData analysis and expected results: Generalized estimating equation logistic regression will be used to assess the intervention effects. The investigators expect that the interventions can promote at least 20% increase in uptake of any one of the three recommended vaccines in the intervention group compared with the control group.",[86],"Health Communication",[88,89,90],"Older people","Preventive care","Vaccine decision-making","2025-03-25",{"date":93,"type":94},"2025-03-30","ACTUAL",{"date":96,"type":94},"2024-10-01",{"date":98,"type":80},"2025-05-31",{"name":5,"class":6},1]