Efficacy of Text Messaging and Personal Consultation by Pharmacy Students Among Adults With Hypertension: Randomized Controlled Trial

Panpan Zhai, Khezar Hayat, Wenjing Ji, Qian Li, Li Shi, Naveel Atif, Sen Xu, Pengchao Li, Qianqian Du, Yu Fang, Panpan Zhai, Khezar Hayat, Wenjing Ji, Qian Li, Li Shi, Naveel Atif, Sen Xu, Pengchao Li, Qianqian Du, Yu Fang

Abstract

Background: Hypertension is one of the leading risk factors for ischemic heart diseases, and high rates of hypertension prevalence have either remained the same or increased in developing countries in recent years. Unfortunately, about 20% to 50% of patients with chronic diseases have been nonadherent to their drug therapy. SMS text messaging and pharmacy student-led consultations have the potential to help patients manage their blood pressure (BP).

Objective: The aim of this study was to assess the effectiveness, feasibility, and acceptability of SMS text messaging and consultation to manage the BP of Chinese patients with hypertension.

Methods: We conducted a two-arm cluster randomized controlled trial among patients with hypertension in Xi'an City, Shaanxi Province, China, and recruited 384 patients from 8 community health care centers. Patients were randomized into an intervention group to receive SMS text messages and consultations or into a control group to receive usual care for 3 months. We sent SMS text messages at 3-day intervals and collected data at baseline (including demographics, clinical outcomes, medication complexity, side effects, patient behavior, knowledge about hypertension, BP, and medication adherence) and the 3-month follow-up (including BP, medication adherence, and knowledge about hypertension).

Results: We assessed 445 patients with hypertension and excluded 61 patients who were not eligible or who had not filled out their questionnaires. The mean age of the patients was 68.5 (SD 7.9) years in the intervention group and 69.4 (SD 9.7) years in the control group, and the sample was primarily female (265/384, 69.0%). Patients in the intervention group showed significant improvements in systolic BP (SBP; mean 134.5 mm Hg, SD 15.5 mm Hg vs mean 140.7 mm Hg, SD 15.2 mm Hg; P=.001), medication adherence (mean 7.4, SD 1.2 vs mean 7.0, SD 1.3; P=.04), and knowledge about hypertension (mean 6.3, SD 0.9 vs mean 5.9, SD 1.2; P=.004) compared with those in the control group. In measures of diastolic BP (DBP), the two arms showed nonsignificant improvements (mean 78.2 mm Hg, SD 9.0 mm Hg vs mean 77.2 mm Hg, SD 10.3 mm Hg; P=.06). In total, 176 patients had controlled BP at the 3-month follow-up (98 patients in the intervention group vs 78 patients in the control group), but it was nonsignificant (P=.08).

Conclusions: The use of SMS text messaging and consultation to manage SBP and improve medication adherence is effective, feasible, and acceptable among Chinese patients with hypertension, although a significant difference was not observed with regard to DBP. It is important to maximize the potential of SMS text messaging and consultation by increasing the feasibility and acceptance of mobile interventions and conduct a cost-effectiveness analysis on this method.

Trial registration: Chinese Clinical Trial Registry ChiCTR1900026862; http://www.chictr.org.cn/showproj.aspx?proj=42717.

Keywords: consultation; hypertension; medication adherence; pharmacy students; text messaging.

Conflict of interest statement

Conflicts of Interest: None declared.

©Panpan Zhai, Khezar Hayat, Wenjing Ji, Qian Li, Li Shi, Naveel Atif, Sen Xu, Pengchao Li, Qianqian Du, Yu Fang. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 20.05.2020.

Figures

Figure 1
Figure 1
Flow diagram.

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