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dc.contributor.authorHoltedahl, Knut Arne
dc.date.accessioned2018-04-06T08:34:21Z
dc.date.available2018-04-06T08:34:21Z
dc.date.issued1990
dc.description.abstractA method of calculating positive predictive values (PPVs) and likelihood ralios (LRs) on the basis of Bayesian probabilities has been described previously. In the present article the method is applied to a sore which does not heal in relation to skin cancer, a lump in the breast in relation to female breast cancer, genital bleeding in relation to internal genital cancer in fernales and indigestion in relation to stomach cancer. For non-healing sores or moles, PPV increased with age from 0.5-0.8% to 3.8-5.8%. LR exceeded 100 for the younger age groups. The PPV or lump in the breast for breast cancer increased steadily from 0.2- 0.3% to 4.1-6.5% up to 70 years or age. The LR was 50-79 for the age group 20-29 years but fell to around 20-40 in intermediate age groups. After the age of 70 years there was a steep rise in PPV to 30.7%-48.3% and in LR to 167-355. For genital bleeding the PPV rose from less than 1% before the menopause to 22-50% after the menopause, falling again to 7.3%-15.0% for women 70 years old or older. LR changed from around 10 before the menopause to three-figure values after. The PPV or indigestion for stomach cancer increased slightly with age from <0.1% to 2.4%. Most LR values varied in the 10-40 range, decreasing slightly with increasing age. There were no significant sex differences. The validity of the results is discussed.en_US
dc.identifier.citationHoltedahl, K. A. (1990). More diagnostic indexes from general practice for some important forms of cancer. Allgemein Medizine - Springer Verlag. 19:80-85en_US
dc.identifier.cristinIDFRIDAID 1577349
dc.identifier.issn1433-6251
dc.identifier.urihttps://hdl.handle.net/10037/12487
dc.language.isoengen_US
dc.publisherSpringer Verlagen_US
dc.relation.journalAllgemein Medizine - Springer Verlag
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Medical disciplines: 700::Health sciences: 800::Epidemiology medical and dental statistics: 803en_US
dc.subjectVDP::Medisinske Fag: 700::Helsefag: 800::Epidemiologi medisinsk og odontologisk statistikk: 803en_US
dc.titleMore diagnostic indexes from general practice for some important forms of canceren_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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