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Rely heavily
on primary data collection from calibrated dental
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professions
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Rationale is
that only dental professionals, calibrated to a standard,
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can make valid
diagnoses of oral diseases and conditions
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| n |
Very few public
health surveillance systems rely so heavily on
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primary data
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Almost all
surveillance systems accept a certain level of error as a
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consequence of
misdiagnosis, misclassification, or incompleteness
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of data
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Example –
mortality at national level measured with death
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certificates
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Filled out by a
variety of individuals- physicians, physician assts,
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midwives, medical
coroners – few have received standardization
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training on how
to complete a death certificate
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