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Fferent surveys using the date of filling in the questionnaire. We then grouped the surveys as follows: 6?8 months = 1-year follow-up, 19?8 months = 2-year follow-up, 29?2 months = 3year follow-up, 43?9 months =4-year follow-up. Women who left one or more follow-up surveys unanswered formed a separate group (intermittent surveys). We classified women into those who had or had not had symptoms in t
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The health and wellbeing of women and children, strategies to improve maternal and child?2013 Al-Atrushi et al.; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is p
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Fferent surveys using the date of filling in the questionnaire. We then grouped the surveys as follows: 6?8 months = 1-year follow-up, 19?8 months = 2-year follow-up, 29?2 months = 3year follow-up, 43?9 months =4-year follow-up. Women who left one or more follow-up surveys unanswered formed a separate group (intermittent surveys). We classified women into those who had or had not had symptoms in t
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Ccuracy. In order to protect the confidentiality of the information, names were not included in the written questionnaires. The content validity of questionnaire was determined by a panel of five experts of different specializations. Experts' comments were taken into consideration in modification and revision. These experts generally agreed that the questionnaire was appropriately designed and dev
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The health and wellbeing of women and children, strategies to improve maternal and child?2013 Al-Atrushi et al.; licensee BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is p
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And. 2UKK Institute for Health Promotion Research and National Institute for Health and Welfare (THL), P.O. Box 3033501, Tampere, Finland. 3 Department of Epidemiology and Biostatistics, National Institute for Health Development, Hiiu 42, 11619, Tallinn, Estonia. Received: 15 February 2012 Accepted: 17 December 2012 Published: 21 December 2012 References 1. Hemminki E, Topo P, Kangas I: Experience
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E therapy to either placebo or nothing (the control groups) [21]. Women were recruited in Estonia from 1999?001, and followed by annually mailed questionnaires in 2000?004. Detailed descriptions of the recruitment, inclusion and exclusion criteria, trial treatment, adherence, follow-up and trial outcomes as well as the content of information leaflets and trial questionnaires have been published el
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At the studied menopausal symptoms were four times more common among those who initially expressed an interest than among those who were not interested at the time of asking [25]. Thus, at a population level, the prevalence of symptoms is much lower, but we know nothing of whether the disturbance and variability among those who have symptoms is the same as in our trial. For comparison, we studied

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