Influenza vaccine text message reminders for urban, low-income pregnant women: A randomized controlled trial

M.S. Stockwell, C. Westhoff, E.O. Kharbanda, C.Y. Vargas, S. Camargo, D.K. Vawdrey and P.M. Castaño

American Journal of Public Health, 2014, vol. 104, issue S1, e7-e12

Abstract: Objectives. We evaluated the impact of influenza vaccine text message reminders in a low-income obstetric population. Methods. We conducted a randomized controlled trial that enrolled 1187 obstetric patients from 5 community-based clinics in New York City. The intervention group received 5 weekly text messages regarding influenza vaccination starting mid-September 2011 and 2 text message appointment reminders. Both groups received standard automated telephone appointment reminders. The prespecified endpoints were receipt of either pre- or postpartum influenza vaccination calculated cumulatively at the end of each month (September- December 2011). Results. After adjusting for gestational age and number of clinic visits, women who received the intervention were 30% more likely to be vaccinated as of December 2011 (adjusted odds ratio [AOR] = 1.30; 95% confidence interval [CI] = 1.003, 1.69 end of September: AOR = 1.34; 95% CI = 0.98, 1.85; October: AOR = 1.35; 95% CI = 1.05, 1.75; November: AOR = 1.27; 95% CI = 0.98, 1.65). The subgroup of women early in the third trimester at randomization showed the greatest intervention effect (December 31: 61.9% intervention vs 49.0% control; AOR = 1.88; 95% CI = 1.12, 3.15). Conclusions. In this low-income obstetric population, text messaging was associated with increased influenza vaccination, especially in those who received messages early in their third trimester.

Keywords: influenza vaccine, adult; article; controlled clinical trial; controlled study; female; gestational age; human; poverty; pregnancy; randomized controlled trial; reminder system; text messaging; United States; urban population; young adult, Adult; Female; Gestational Age; Humans; Influenza Vaccines; New York City; Poverty; Pregnancy; Reminder Systems; Text Messaging; Urban Population; Young Adult (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:aph:ajpbhl:10.2105/ajph.2013.301620_3

DOI: 10.2105/AJPH.2013.301620

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