Strip Test is Reliable in Common Prevalences of Hypolactasia

H. Arola Dept. of Public Health, University of Tampere, Tampere; Central Laboratory, Dept. of Internal Medicine, Laboratory of Clinical Physiology, University Central Hospital of Tampere, Tampere; Central Laboratory, University Central Hospital of Kuopio, Kuopio, Finland

T. Koiwla Dept. of Public Health, University of Tampere, Tampere; Central Laboratory, Dept. of Internal Medicine, Laboratory of Clinical Physiology, University Central Hospital of Tampere, Tampere; Central Laboratory, University Central Hospital of Kuopio, Kuopio, Finland

H. Jokela Dept. of Public Health, University of Tampere, Tampere; Central Laboratory, Dept. of Internal Medicine, Laboratory of Clinical Physiology, University Central Hospital of Tampere, Tampere; Central Laboratory, University Central Hospital of Kuopio, Kuopio, Finland

M. Jauhiainen Dept. of Public Health, University of Tampere, Tampere; Central Laboratory, Dept. of Internal Medicine, Laboratory of Clinical Physiology, University Central Hospital of Tampere, Tampere; Central Laboratory, University Central Hospital of Kuopio, Kuopio, Finland

O. Keyriläinen Dept. of Public Health, University of Tampere, Tampere; Central Laboratory, Dept. of Internal Medicine, Laboratory of Clinical Physiology, University Central Hospital of Tampere, Tampere; Central Laboratory, University Central Hospital of Kuopio, Kuopio, Finland

A. Uusitalo Dept. of Public Health, University of Tampere, Tampere; Central Laboratory, Dept. of Internal Medicine, Laboratory of Clinical Physiology, University Central Hospital of Tampere, Tampere; Central Laboratory, University Central Hospital of Kuopio, Kuopio, Finland

M. Isokoski Dept. of Public Health, University of Tampere, Tampere; Central Laboratory, Dept. of Internal Medicine, Laboratory of Clinical Physiology, University Central Hospital of Tampere, Tampere; Central Laboratory, University Central Hospital of Kuopio, Kuopio, Finland

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Abstract

The object of this study was to compare the indirect diagnostic methods on the basis of urinary galactose determination in the diagnosis of lactose malabsorption with the actual lactase activities. One hundred and seven patients were studied. The specificity and sensitivity of the strip test were 97%. With 30% actual prevalence the positive predictive value was 94%, and the negative predictive value was 99%. In common prevalences of hypolactasia the strip test was reliable.

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Strip Test is Reliable in Common Prevalences of Hypolactasia

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Strip Test is Reliable in Common Prevalences of Hypolactasia

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