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  • Title: A community-based study of headache diagnosis and prevalence in Singapore.
    Author: Ho KH, Ong BK.
    Journal: Cephalalgia; 2003 Feb; 23(1):6-13. PubMed ID: 12534573.
    Abstract:
    We present the results of a community survey based on the diagnostic criteria of the International Headache Society (IHS) describing headache prevalence and symptomatology in the Singapore population. A questionnaire administered by trained personnel was completed by 2096 individuals from a randomized sample of 1400 households. The overall lifetime prevalence of headache was 82.7%. The migraine prevalence was 2.4% in males and 3.6% in females; for episodic tension-type headache and chronic tension-type headache the corresponding figures were 11.1%/11.8% and 0.9%/1.8%, respectively. Inclusion of borderline cases (IHS codes 1.7 and 2.3) resulted in prevalences of 9.3% for migraine, 39.9% for episodic tension headache and 2.4% for chronic tension headache. Headaches described by 31.2% of the respondents were unclassifiable. The different premonitory symptoms, precipitants and aggravating factors in migraine and tension-type headache in our study population suggest that they represent two distinct syndromes rather than opposite ends of a clinical spectrum.
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