Estimating the mean, variance, and confidence limits from censored (< limit of detection), lognormally distributed exposure data

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<title>Estimating the mean, variance, and confidence limits from censored (< limit of detection), lognormally distributed exposure data</title>
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<title>American Industrial Hygiene Association journal</title>
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<namePart>Perkins, Jimmy L.</namePart>
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<name type="personal" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080128128">
<namePart>Cutter, Gary N.</namePart>
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<namePart>Cleveland, Michael S.</namePart>
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<abstract displayLabel="Summary">A published statistical technique is applied to an exposure distribution having measurements that are less than the analytical limit of detection (LOD). The method uses the mean and standard deviation of known or quantitated values and the number of censored or nonquantitated values. These data are used to enter a table, which is presented. Lastly, another published technique is used to calculate confidence limits for the mean of a lognormal distribution</abstract>
<note type="statement of responsibility">Jimmy L. Perkins, Gary N. Cutter, and Michael S. Cleveland</note>
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<title>American Industrial Hygiene Association journal</title>
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<publisher>Akron, Ohio</publisher>
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<text>Vol. 51, nº 8, August 1990 ; p. 416-419</text>
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