background preference weights for eq-5d-3l based on visual analogue scale (vas) has recently been developed in iran. the aim of the current study was to compare performance of this value set against the uk vas-based value set.   methods the mean scores for all possible 243 health states were compared using student t test. absolute agreement and consistency were investigated using concordance co...

background measuring health status by using standardized and validated instrument has become a growing concern over the past few decades throughout the developed and developing countries. the aim of the study was to investigate the overall self-reported health status along with potential inequalities by using euroqol 5 dimensions (eq-5d) instrument among low-income people of bangladesh.   me...

objective: to compare the analgesiceffects of nitrous oxide and morphine sulfate in patients with acute renal colic due to urolithiasis. m e t h od s : this  was randomized clinical trial being performed in imam hossein hospital affiliated with shahid beheshti university  of medical sciences during a 1-year period from may2013 to may2014.  a  total of number of 100 patients, with an age range o...

background: migraine is a prevalent disease which is classified into two groups of migraine with aura and without aura. eighteen percent of women and 6.5 percent of men in united states have migraine headache. migraine headache is prevalent in all age groups but it usually subsides in adults above fifty. migraine has many risk factors such as stress, light, tiredness, special foods and beverage...

The present article describes VAS Generator (www.vasgenerator.net), a free Web service for creating a wide range of visual analogue scales that can be used as measurement devices in Web surveys and Web experimentation, as well as for local computerized assessment. A step-by-step example for creating and implementing a visual analogue scale with visual feedback is given. VAS Generator and the sc...

conclusions our method provided good results and performing evacuation under the guide of bedside ultrasonography is recommended. results we treated 173 patients, including 164 females (94.8%), with the mean (sd) age of 43.75 (10.62) years. according to vas, 95.4% of patients reported complete satisfaction while 2 (1.2%) were unsatisfied with the results. patients reported no complication of th...

Three methods for perceptual rating of audio stimuli were compared. The Visual Analogue Scale, VAS, was implemented as two computer programs and compared to the VAS on paper. The first program is a straight-forward implementation, the second program introduces the Visual Sort and Rate method, VSR. VSR allows the subject to compare stimuli of similar rating to each other, thus making the orderin...