<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Schramm SH</dc:creator>
  <dc:creator>Moebus S</dc:creator>
  <dc:creator>Lehmann N</dc:creator>
  <dc:creator>Galli U</dc:creator>
  <dc:creator>Obermann M</dc:creator>
  <dc:creator>Bock E</dc:creator>
  <dc:creator>Yoon MS</dc:creator>
  <dc:creator>Diener HC</dc:creator>
  <dc:creator>Katsarava Z</dc:creator>
  <dc:date>2015</dc:date>
  <dc:description xmlns:ns0="xml" ns0:lang="en">INTRODUCTION
We studied the association between stress intensity and headache frequency for tension-type headache (TTH), migraine and migraine with coexisting TTH (MigTTH).


METHOD
We studied a population-based sample of 5159 participants (21-71 years) who were asked quarterly between March 2010 and April 2012 about headache and stress. Log-linear regression in the framework of generalized estimating equations was used to estimate regression coefficients presented as percent changes to describe the association between stress intensity (modified visual analog scale (VAS) from 0 to 100) and headache frequency (days/month) stratified by headache subtypes and age groups and adjusted for sex, age, frequent intake of acute pain drugs, drinking, smoking, BMI and education.


RESULTS
TTH was reported in 31% participants (48.1 ± 12.5years, 51.5% women, 2.2 ± 3.9 mean headache days/month, 52.3 ± 26.7 mean stress), migraine in 14% (44.8 ± 11.3years, 73.3%, 4.5 ± 5.2 days/month, 62.4 ± 23.3), MigTTH in 10.6% (43.5 ± 11.5 years, 61.0%, 3.6 ± 4.8 days/month, 58.6 ± 24.1), 23.6% were unclassifiable, and 20.8% had no headache. In participants with TTH an increase of 10 points on VAS was associated with an increase of headaches days/month of 6.0% (adjusted). Higher effects were observed in younger age groups (21-30/31-40/41-50/51-60/61-71 years: 9.8/10.2/7.0/6.5/3.5%). Slightly lower effects were observed for migraine (4.3%, 8.1/5.1/3.4/6.3/0.3%) and MigTTH (4.2%, 5.5/6.8/6.9/5.8/-0.7%).


CONCLUSION
Our study provides evidence for an association between stress intensity and headache frequency.</dc:description>
  <dc:identifier>https://sonar.ch/global/documents/50639</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>info:eu-repo/semantics/altIdentifier/doi/10.1177/0333102414563087</dc:relation>
  <dc:relation>info:eu-repo/semantics/altIdentifier/pmid/25480807</dc:relation>
  <dc:source>Cephalalgia : an international journal of headache. - 2015</dc:source>
  <dc:subject xmlns:ns1="xml" ns1:lang="en">Stress</dc:subject>
  <dc:subject xmlns:ns2="xml" ns2:lang="en">epidemiology</dc:subject>
  <dc:subject xmlns:ns3="xml" ns3:lang="en">headache</dc:subject>
  <dc:subject xmlns:ns4="xml" ns4:lang="en">longitudinal</dc:subject>
  <dc:subject xmlns:ns5="xml" ns5:lang="en">migraine</dc:subject>
  <dc:subject xmlns:ns6="xml" ns6:lang="en">tension-type headache</dc:subject>
  <dc:subject xmlns:ns7="xml" ns7:lang="en">Adult</dc:subject>
  <dc:subject xmlns:ns8="xml" ns8:lang="en">Aged</dc:subject>
  <dc:subject xmlns:ns9="xml" ns9:lang="en">Cohort Studies</dc:subject>
  <dc:subject xmlns:ns10="xml" ns10:lang="en">Female</dc:subject>
  <dc:subject xmlns:ns11="xml" ns11:lang="en">Headache</dc:subject>
  <dc:subject xmlns:ns12="xml" ns12:lang="en">Humans</dc:subject>
  <dc:subject xmlns:ns13="xml" ns13:lang="en">Longitudinal Studies</dc:subject>
  <dc:subject xmlns:ns14="xml" ns14:lang="en">Male</dc:subject>
  <dc:subject xmlns:ns15="xml" ns15:lang="en">Middle Aged</dc:subject>
  <dc:subject xmlns:ns16="xml" ns16:lang="en">Population Surveillance</dc:subject>
  <dc:subject xmlns:ns17="xml" ns17:lang="en">Stress, Psychological</dc:subject>
  <dc:subject xmlns:ns18="xml" ns18:lang="en">Surveys and Questionnaires</dc:subject>
  <dc:subject xmlns:ns19="xml" ns19:lang="en">Young Adult</dc:subject>
  <dc:title xmlns:ns20="xml" ns20:lang="en">The association between stress and headache: A longitudinal population-based study.</dc:title>
  <dc:type>http://purl.org/coar/resource_type/c_6501</dc:type>
</oai_dc:dc>