Feasibility and efficacy of text messaging to promote care among trauma patients screened for HIV at an urban emergency department in Tanzania

Abstract

ABSTRACT Background: Due the high prevalence of Human Immune Virus (HIV), provider-initiated HIV testing for patients attending any health care setting is recommended. However, follow-up and linkage to care by those tested remains poor. We determined the feasibility and efficacy of text-messaging to promote follow-up among otherwise healthy trauma patients who underwent provider-initiated HIV testing and counseling at an Emergency Department (ED) in Tanzania. Material and methods: This randomized controlled trial was conducted at Muhimbili National Hospital (MNH) ED between September 2019 to February 2020. Adult trauma patients consenting to HIV testing and follow-up text messaging were randomized to standard care (pre and post-test counseling) or standard care plus a series of 3 text-message reminders for follow-up in an HIV clinic, if positive, or retesting, if negative. Investigators blinded to study assignment called participants 2-months after the ED visit if HIV positive, or 4 months if HIV negative. We compared the proportion of people in the intervention and control groups completing recommended follow- up. Secondary outcomes were proportion accepting testing, agreeing to receive SMS and follow-up compliance by HIV status. Results: Of 290 patients approached, 255 (87.9%) opted-in for testing and consented to the study. The median age of the study population was 29 [IQR 24-40] years. 127 (49.8%) were randomized to the intervention group and 128 (50.2%) to the control group. The short message service (SMS) system verified that 381 text messages in total were received. We traced 242 (94.9%) participants: 124 (51.2%) from intervention group and 118 (48.8%) controls. 100 (39.2%) subjects reported attending a follow-up visit, of which 77 (60.6%) were from the intervention group and 23 (17.9%) were controls. (RR = 3.4, 95%CI (2.3-5.0) resulting in number needed to treat (NNT) of 2.3. Of 246 HIV negative participants, 37% went for repeat screening: 59% of those in the intervention group and 16% in the control group (RR= 3.7, P = Conclusion : Automated text message is a feasible and effective way to increase follow up in HIV tested individuals in a limited income count. Keywords: HIV, AIDS, SMS, Text Message, Reminder, Cell Phone, Opt-out, PITC, Trauma, Emergency Department, Tanzania