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Tidskrift

Sammanfattning

This study concerns the use of a colour poster with six degrees of haematuria. The purpose was to test the poster and the reliability, expressed in terms of interobserver variation when establishing the degree of haematuria according to a systematic method. Doctors and nurses at the Urinary Surgical Department at Århus University Hospital, Skejby, evaluated 147 haematuria samples, i.e. 294 evaluations in a blind study. The interobserver variation and concurrence in the evaluation between the six degrees of haematuria were given as a percentage and Cohn's Kappa analysis. The interobserver variation was 65 per cent on visual evaluation, with a Kappa statistic (coefficient) of 0.54. The difference in certainty in the evaluation of the degree of haematuria of 1.5 and 6 (weak levels of haematuria) was 79 per cent, with a Kappa coefficient of 0.65, the degree of haematuria of 2, 3 and 4 (strong levels of haematuria) was 41 per cent, with a Kappa coefficient of 0.15. Use of colour posters and procedure for visual evaluation increases precision in relation to verbal descriptions of haematuria. The plate is used as a clinical evaluation tool which is not to be considered as a competitor for measuring apparatus.

MeSH