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      Mobile phone text messaging improves antihypertensive drug adherence in the community

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          A comparative risk assessment of burden of disease and injury attributable to 67 risk factors and risk factor clusters in 21 regions, 1990–2010: a systematic analysis for the Global Burden of Disease Study 2010

          The Lancet, 380(9859), 2224-2260
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            Is Open Access

            Design and Multi-Country Validation of Text Messages for an mHealth Intervention for Primary Prevention of Progression to Hypertension in Latin America

            Background Mobile health (mHealth) has been posited to contribute to the reduction in health gaps and has shown fast and widespread growth in developing countries. This growth demands understanding of, and preparedness for, local cultural contexts. Objective To describe the design and validation of text messages (short message service, SMS) that will be used for an mHealth behavioral change intervention to prevent hypertension in three Latin American countries: Argentina, Guatemala, and Peru. Methods An initial set of 64 SMS text messages were designed to promote healthy lifestyles among individuals in different stages of behavior change, addressing four key domains: salt and sodium intake, fruit and vegetable intake, consumption of high fat and sugar foods, and physical activity. The 64 SMS text messages were organized into nine subsets for field validation. In each country 36 people were recruited, half of them being male. Of the participants, 4 per country evaluated each subset of SMS text messages, which contained between 6 and 8 SMS text messages regarding different key domains and stages of change. The understanding and appeal of each SMS text message was assessed using a 7-item questionnaire. The understanding and appeal ratings were used to reach a final set of 56 SMS text messages. Results Overall, each of the 64 SMS text messages received a total of 12 evaluations (4 per country). The majority of evaluations—742 out of a total of 767 (96.7%) valid responses—revealed an adequate understanding of the key idea contained in the SMS text message. On a scale from 1 to 10, the average appeal score was 8.7 points, with a range of 4 to 10 points. Based on their low scores, 8 SMS text messages per country were discarded. Once the final set of 56 SMS text messages was established, and based on feedback obtained in the field, wording and content of some SMS text messages were improved. Of the final set, 9, 8, and 16 of the SMS text messages were improved based on participant evaluations from Argentina, Guatemala, and Peru, respectively. Most SMS text messages selected for the final set (49/56, 88%) were the same in all countries, except for small wording differences. Conclusions The final set of SMS text messages produced had very high rates of understanding and appeal in three different Latin American countries. This study highlights the importance of developing and validating a package of simple, preventative SMS text messages, grounded in evidence and theory, across three different Latin American countries with active engagement of end users.
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              Validation of the Omron MX3 Plus oscillometric blood pressure monitoring device according to the European Society of Hypertension international protocol.

              Demand for devices that allow the self-assessment of blood pressure continues to rise. Few self-assessment devices, however, have been validated against recognised protocols. The aim of this study was to validate the Omron MX3 Plus (model HEM-742-E) oscillometric blood pressure measuring device in accordance with the international protocol of the European Society of Hypertension. This automated device is currently available to the public in the UK through high-street chemists and other outlets. The European Society of Hypertension's international protocol for validation of blood pressure measuring devices in adults divides validation into two phases. The first phase is performed on 15 individuals, five in each of three specific blood pressure categories. If the device passes the first phase then a further 18 patients are recruited, making a total of 33 individuals on which the final validation is based. All subjects are aged 30 years or above. The automated device was connected in parallel to two reference mercury sphygmomanometers. Nine sequential same-arm measurements were taken from each subject by two trained observers, alternating between the mercury sphygmomanometers and the test device. The Omron MX3 Plus passed both phases of the ESH validation process. The mean (standard deviation) of the difference between the observer and the device measurements was -1.15 (5.7) mmHg for systolic and -1.61 (4.7) mmHg for diastolic pressures, respectively. The Omron MX3 Plus can be recommended for home and professional use in an adult population.
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                Author and article information

                Journal
                The Journal of Clinical Hypertension
                J Clin Hypertens
                Wiley
                15246175
                December 2017
                December 2017
                September 21 2017
                : 19
                : 12
                : 1276-1284
                Affiliations
                [1 ]Fundación de la Sociedad Chilena de Cardiología y Cirugía Cardiovascular; Santiago Chile
                [2 ]Unidad de Prevención Cardiovascular y Rehabilitación Cardíaca; Centro Cardiovascular; Hospital DIPRECA; Santiago Chile
                [3 ]División de Enfermedades Cardiovasculares; Facultad de Medicina; Pontificia Universidad Católica de Chile; Santiago Chile
                [4 ]Facultad de Medicina; Campus Centro Hospital San Borja Arriarán; Universidad de Chile; Santiago Chile
                [5 ]Departamento de Matemáticas; Facultad de Ciencias; Universidad de la Serena; La Serena Chile
                [6 ]Centro de Salud Familiar Ossandón; Santiago Chile
                [7 ]Centro de Salud Familiar Santa Amalia; Santiago Chile
                [8 ]Centro de Salud Familiar Presidenta Michelle Bachelet; Santiago Chile
                [9 ]Centro de Salud Familiar Gustavo Molina; Santiago Chile
                [10 ]Centro de Salud Familiar Ignacio Domeiko; Santiago Chile
                [11 ]Centro de Salud Familiar Dr. Anibal Ariztía; Santiago Chile
                [12 ]Centro de Salud Familiar Santa Julia; Santiago Chile
                [13 ]Centro de Salud Familiar Padre Gerardo Whelan; Santiago Chile
                Article
                10.1111/jch.13098
                28941056
                15f6b26d-2e65-4775-8a01-eaf533f189bb
                © 2017

                http://doi.wiley.com/10.1002/tdm_license_1.1

                http://onlinelibrary.wiley.com/termsAndConditions#vor

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