부산대학교 도서관

Background: In order to minimize recall bias in burden estimation, questions about headache yesterday were included in apopulation-based survey initiated by Lifting The Burden: The Global Campaign against Headache.Methods: Throughout China, nonrelated respondents aged 18-65 years were randomly sampled from the general populationby a door-to-door survey. A validated structured questionnaire included inquiry into occurrence and burden ofheadache on the preceding day ("headache yesterday").Results: The participation rate was 94.1%. Of 5041 participants, 286 (5.7%) (male 3.6%, female 7.9%) reported headacheyesterday. Age-weighted prevalence of headache yesterday was 4.8% (male 3.0%, female 6.6%). Headache yesterday lastedall day in 36.8%, <1 hour in 14.3% and for a mean of 3.7±3.3 hours in 48.9%. Headache yesterday was moderate tosevere in 79.9%; disability such that they could do less than half of what they had expected was reported by 19.9% andsuch that they could do nothing by a further 7.5% (total 27.4%). Almost three-quarters (71.5%) with headache yesterdaytook medication to treat it.Conclusions: Of the adult Chinese population, 1.8% have headache at any one time that is of moderate to severe intensityin 1.4%, and 1.3% lose the equivalent of a whole day to headache-attributed disability every day. In China this means12.3 million people. [ABSTRACT FROM AUTHOR]