%0 Journal Article
%T Social Support and Sleep. Longitudinal Relationships from the WOLF-Study
%A Maria Nordin
%A Peter Westerholm
%A Lars Alfredsson
%A Torbjorn Akerstedt
%J Psychology
%P 1223-1230
%@ 2152-7199
%D 2012
%I Scientific Research Publishing
%R 10.4236/psych.2012.312A181
%X <p align=\"justify\">
	<b><span style=\"font-size:12px;\">Aim:</span></b><span style=\"font-size:12px;\"> To investigate the relationship between two social support dimensions (network and emotional support) and sleep quality and between </span><span style=\"font-size:12px;\">two </span><span style=\"font-size:12px;\">social support sources (at and outside work) and sleep quality.</span><span style=\"font-size:8.5pt;\"> </span><b><span style=\"font-size:12px;\">Methods: </span></b><span style=\"font-size:12px;\">The three-wave prospective Work Lipids and Fibrinogen (WOLF) study from Northern Swe</span><span style=\"font-size:12px;\">den was used including 2420 participants who had filled out a questionnaire on working life, life style and health. Sleep quality was assessed by </span><span style=\"font-size:12px;\">the </span><span style=\"font-size:12px;\">Karolinska Sleep Questionnaire (KSQ). Structure and function of social support were measured as network support both at and outside work by Availability of Social Integration (AVSI) and emotional support both at and outside work by Availability of Attachment (AVAT). Logistic regression was used, utilizing</span><span style=\"font-size:8.5pt;\"> </span><span style=\"font-size:12px;\">variables created to assess development over time. Moreover, reversed causation was tested.</span><span style=\"font-size:8.5pt;\"> </span><b><span style=\"font-size:12px;\">Results:</span></b><span style=\"font-size:8.5pt;\"><span style=\"font-size:12px;\"> Improved network support at work decreased the risk of disturbed </span><span style=\"font-size:12px;\">sleep (OR .65; 95% CI .47</span></span><span style=\"font-size:8.5pt;\"> </span><span style=\"font-size:12px;\">-</span><span style=\"font-size:8.5pt;\"> </span><span style=\"font-size:12px;\">.90) as did improved emotional support outside work (OR .69; 95% CI .49</span><span style=\"font-size:8.5pt;\"> </span><span style=\"font-size:12px;\">-</span><span style=\"font-size:8.5pt;\"> </span><span style=\"font-size:12px;\">.96). Reporting a constant poor network support at work increased the risk of disturbed sleep (OR 1.53, 95% CI 1.10</span><span style=\"font-size:8.5pt;\"> </span><span style=\"font-size:12px;\">-</span><span style=\"font-size:8.5pt;\"> </span><span style=\"font-size:12px;\">2.11)</span><span style=\"font-size:8.5pt;\"> </span><span style=\"font-size:8.5pt;\"><span style=\"font-size:12px;\">as did reporting a constant poor emotional support outside work (OR 1.46; 95% </span><span style=\"font-size:12px;\">CI 1.02</span></span><span
%K Sleep Quality
%K KSQ
%K Social Integration
%K Emotional Support
%K Reversed Causation
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=26262