Abstract
Measurement of nausea is essential for the evaluation of efficacy of antiemetic treatment. Frequency, duration and intensity of nausea should be assessed in all trials. Three different methods: a discrete scale (DS), a visual analogue scale (VAS) and a continuous chromatic analogue scale (ACCS) of measuring nausea and four different dimensions maximal intensity, (MI); entity, (E); duration, (D) and quantity, (Q) were evaluated in 849 cancer patients undergoing chemotherapy. A substantial agreement between the different scales was found and no advantage was shown for using an analogue (VAS) rather than a discrete (DS) scale. There was a trend towards increasing sensitivity in detecting differences as the dimension of nausea used encompassed wider aspects of this symptom (Q more sensitive than E more sensitive than MI).
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Selected References
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