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Table 4 Frequency of agreement and disagreement between nurse and doctor classification interviews re-classified according to case notes

From: Development and validation of a telephone classification interview for common chronic headache disorders

  Nurses’ classification
Chronic migraine Chronic tension type headache Others Total
Doctors’ classification Chronic migraine 90 1 6 97
Chronic tension type headache 3 3 0 6
Others 0 1 3 4
Total 93 5 9 107
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