Jessica Zibellini1, Danielle Marie Muscat2, Nathalie Kizirian3, Adrienne Gordon4. 1. The School of Medicine, The University of Notre Dame, Australia. Electronic address: Jessica.zibellini@health.nsw.gov.au. 2. The University of Sydney, Faculty of Medicine and Health, School of Public Health, Sydney Health Literacy Lab, Australia. 3. The University of Sydney, Charles Perkins Centre, Australia. 4. The University of Sydney, Charles Perkins Centre, Australia; The University of Sydney, Faculty of Medicine and Health, Central Clinical School, Australia; Royal Prince Alfred Newborn Care, Royal Prince Alfred Hospital, Sydney, Australia.
Abstract
BACKGROUND: Low health literacy has been associated with worse health outcomes, but little is known about the effectiveness of health literacy interventions developed for pregnant women. AIM: To assess the effectiveness of health literacy interventions on pregnancy outcomes through a systematic review of randomised controlled trials. METHODS: Randomised controlled trials that assessed health literacy interventions designed to improve pregnancy outcomes were included. The study protocol was registered with PROSPERO (CRD42018094958). FINDINGS: Of the 1512 records initially identified, 13 studies were included. Three reported on decision-aid interventions, six on face-to-face interventions and four on written interventions (including computer-based interventions or information leaflets). The primary outcomes of interest for this systematic review were knowledge (10/13 studies) and health literacy (2/13 studies) with one study not reporting either primary outcome. A significant improvement in knowledge was found across the 10 studies, however the two studies which measured health literacy only assessed health literacy at a single time-point. Secondary outcomes including health behaviours, fetal outcomes and health-service utilisation were reported in 11 studies, with inconsistent results. DISCUSSION: Few health literacy interventions have been developed specifically for pregnant women. Although health literacy interventions have the potential to improve knowledge and pregnancy outcomes, current evidence is limited by inconsistent outcomes and measurement, and limited use of health literacy theory to inform intervention design and content. Few studies directly measured health literacy. CONCLUSION: More research is needed to properly assess the effect of health literacy interventions on pregnancy outcomes. This research should include consideration of health literacy theory in the development of the interventions.
BACKGROUND: Low health literacy has been associated with worse health outcomes, but little is known about the effectiveness of health literacy interventions developed for pregnant women. AIM: To assess the effectiveness of health literacy interventions on pregnancy outcomes through a systematic review of randomised controlled trials. METHODS: Randomised controlled trials that assessed health literacy interventions designed to improve pregnancy outcomes were included. The study protocol was registered with PROSPERO (CRD42018094958). FINDINGS: Of the 1512 records initially identified, 13 studies were included. Three reported on decision-aid interventions, six on face-to-face interventions and four on written interventions (including computer-based interventions or information leaflets). The primary outcomes of interest for this systematic review were knowledge (10/13 studies) and health literacy (2/13 studies) with one study not reporting either primary outcome. A significant improvement in knowledge was found across the 10 studies, however the two studies which measured health literacy only assessed health literacy at a single time-point. Secondary outcomes including health behaviours, fetal outcomes and health-service utilisation were reported in 11 studies, with inconsistent results. DISCUSSION: Few health literacy interventions have been developed specifically for pregnant women. Although health literacy interventions have the potential to improve knowledge and pregnancy outcomes, current evidence is limited by inconsistent outcomes and measurement, and limited use of health literacy theory to inform intervention design and content. Few studies directly measured health literacy. CONCLUSION: More research is needed to properly assess the effect of health literacy interventions on pregnancy outcomes. This research should include consideration of health literacy theory in the development of the interventions.
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