Test–retest reliability of the Mandarin versions of the Hypertension Self-Care Profile instrument

Abstract

Self-efficacy in essential hypertension can be measured using scales, such as the “Hypertension Self-Care Profile” (HTN-SCP) questionnaire. It assesses “Behavior”, “Motivation”, and “Self-efficacy” in 3 domains, respectively. This study aimed to validate the Mandarin version of HTN-SCP instrument (HTN-SCP-Mn) targeted at patients of Chinese ethnicity with hypertension.Our study recruited Chinese patients, aged 40 years and older, with essential hypertension from a public primary healthcare clinic in Singapore. The 60-item HTN-SCP-Mn questionnaire was completed online using a tablet or smartphone on enrolment. A retest was conducted 2 weeks after the initial test. Reliability was assessed by internal consistency and test–retest reliability using Cronbach alpha and intraclass correlation coefficients (ICC). Differences between the overall HTN-SCP-Mn scores of the patients and their self-reported self-management activities were also determined using independent t test.Of the 153 patients who completed the HTN-SCP-Mn during the initial test, 79 responded to the test–retest evaluation. Reliability of the 3 domains “Behavior”, “Motivation”, and “Self-efficacy” obtained high internal consistency (Cronbach alpha = 0.838, 0.929, and 0.927, respectively). The item total correlation ranged from 0.058 to 0.677 for Behavior, 0.374 to 0.798 for Motivation, and 0.326 to 0.767 for self-efficacy. The ICC indicated fair to good test–retest reliability with scores of 0.643, 0.579, and 0.710 for the respective domains.The results showed face validity of the HTN-SCP-Mn instrument, indicating its potential application in mandarin-proficient patients. Further study is needed to correlate its scores with objective demonstration of self-efficacy.

Comparing and determining factors associated with hypertension self-care profiles of patients in two multi-ethnic Asian countries: cross-sectional studies between two study populations

“…16 It consists of 60-items and three domains which are behaviour, motivation and self-efficacy. It has been validated in Singapore, [17][18][19] and the Cronbach's alpha for the subdomain's ranges from 0.857 to 0.948. For the Malay version, the Cronbach's alpha for the subdomains ranges from 0.851 to 0.945 whereas, for the Mandarin version, the Cronbach's alpha ranges from 0.838 to 0.929.…”

“…The questionnaire was available in three languages which are English, Malay and Mandarin for participants to select their preferred version. [17][18][19] It consists of three sections: sociodemographic characteristics, medical profiles on hypertension and the HTN-SCP tool. BP reading was taken from the patient's medical records.…”

The self-care profiles and its determinants among adults with hypertension in primary health care clinics in Selangor, Malaysia

“…The HTN-SCP tool was validated in Singapore with a similar multi-ethnic Asian population as in Malaysia. [7,16,17,18] It provides opportunities for cross-national comparison of hypertension self-care capacity in different populations. In addition, the tool allows profiling patients using the three dimensions of self-care in hypertension.…”

Psychometric evaluation of a Patient Satisfaction Survey Questionnaire to assess advanced practice nurse ambulatory services in primary care

“…The limitation is mitigated by deploying the same nursing student to assist the participant in administering the questionnaire during the test and to conduct the subsequent retest by phone interview. This approach was used by the investigators in earlier validation studies of other instrument, which was accepted by the academic fraternity (Koh et al, 2016; Ngoh, Lim, Koh, & Tan, 2017; Seow, Mohamed Yusoff, Koh, & Tan, 2017).…”