Development and Validation of a KAP Questionnaire for Secondary Hypertension: Evaluating a Community Short-Video Intervention in Rural Beijing

NCT07497841 | Completed DMC

• 2 other identifiers: PKUFH-JFXGXY202501
• Study Type: interventional
• Target: 1,062
• Locations: 1 country
• Sites: 1

Brief Summary

This is a two-phase, non-randomized clinical trial conducted in eight communities in Miyun District, Beijing. The study first develops and validates a reliable 18-item questionnaire (Knowledge, Attitudes, and Practices \[KAP\] scale) to assess community residents' understanding, attitudes, and behaviors related to secondary hypertension. Then, we evaluate whether a 1-week community-centered short-video health education intervention (five 1-minute videos delivered via community WeChat groups by local physicians) can improve residents' secondary hypertension-related knowledge, attitudes, and practices. We will compare scores before and after the intervention, and analyze which groups (such as rural residents, people with lower education, older adults) benefit more. This study aims to provide a simple assessment tool and a scalable health education model for secondary hypertension in community settings, especially for rural and low-educated populations.

Conditions

Secondary Hypertension

Outcome Measures

Primary Outcomes (1)

• Change in total score of the Secondary Hypertension Knowledge, Attitudes, and Practices (KAP) scale

  The total score of the validated 18-item KAP scale for secondary hypertension will be measured at baseline and post-intervention. The scale includes knowledge, attitudes, and practices dimensions using a 5-point Likert scale. A higher total score indicates better knowledge, more positive attitudes, and better practices related to secondary hypertension. The primary outcome is the mean change from baseline to post-intervention.

  Baseline (1 day before intervention) and within 24 hours after the 1-week intervention

Study Arms (1)

Community-Based Short-Video Intervention Group

EXPERIMENTAL

Participants received a one-week short-video intervention on secondary hypertension. Five one-minute videos covered definition, symptoms, screening, treatment, and prognosis. Videos were delivered via community WeChat groups. Community physicians monitored engagement. KAP scores were measured pre- and post-intervention.

Behavioral: Short-Video Health Education for Secondary Hypertension

Interventions

Short-Video Health Education for Secondary Hypertension BEHAVIORAL

Participants received five one-minute educational videos about secondary hypertension via community WeChat groups over one week. Videos covered definition, symptoms, screening, treatment, and prognosis. Content was reviewed by specialists. Community physicians monitored engagement and sent reminders. The intervention aims to improve KAP levels.

Community-Based Short-Video Intervention Group

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Permanent residents aged ≥18 years with basic comprehension abilities, capable of completing the online questionnaire independently or with assistance
• Voluntary participation and signed informed consent
• For Phase 2 (Intervention Phase) only:
• Individuals with confirmed hypertension or family members cohabiting with hypertensive patients
• Member of a community WeChat group with the ability to receive and view short videos, and to complete online questionnaires independently or with assistance

You may not qualify if:

• \- Cognitive impairment that would interfere with understanding the questionnaire or video content
• Prior participation in standardized secondary hypertension public education programs
• Inability to use WeChat or access short videos (for Phase 2)

Sponsors & Collaborators

• Peking University First Hospital: lead

Study Sites (1)

Peking University First Hospital

Beijing, China

Location

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: HEALTH SERVICES RESEARCH
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: March 9, 2026
• First Posted: March 27, 2026
• Study Start: December 1, 2025
• Primary Completion: January 31, 2026
• Study Completion: March 1, 2026
• Last Updated: March 27, 2026

Record last verified: 2026-03

Data Sharing

• IPD Sharing: Will not share

Locations

CN (1)