The upright scale is used for ambulatory patients who can stand unattended on the platform. Patient height and weight represent which type of data. Healthcare providers use three primary types of charts to measure height and weight. Processed data eg patients body mass index bmi which is derived from height and weight. To remind me about the widely used 4 way categorisation of data types for stats. It was introduced by stevens 1946.
In our example of medical records there are several variables of each type. Primary data data which is derived straight from a source such from an individual patients medical record eg patients age. Height is measured with the ruler attached to an upright scale or with a tape measure when the patient is lying in bed. Age weight and height are quantitative variables. Introduction the point of this page is to have a note to hand of the traditional categories. Functional assessment data d.
Race gender and smoking are categorical variables. Identify the types of scales and give an example of when each type is used. This is a growth chart for children up to 36 months old. Nominal ordinal interval ratio data by steve draper department of psychology university of glasgow.