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. 2012 Jul 12;2(4):e001044. doi: 10.1136/bmjopen-2012-001044

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© 2012, Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use is non commercial and is otherwise in compliance with the license. See: http://creativecommons.org/licenses/by-nc/2.0/ and http://creativecommons.org/licenses/by-nc/2.0/legalcode.

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Change in Medical Outcomes Study (MOS) Sleep Problems Index (SPI) scores among treatment groups. Data presented as least-squares means±95% CIs. Analyses adjusted for age, body mass index, sleep medication use, hormone replacement therapy use and baseline MOS SPI score. Asterisk indicates difference from control (p=0.02). KKW, kilocalories of energy expenditure per kilogram of body weight per week.