I'm using CR XI Prof and hit a strange issue converting a string field to a number so I could calculate an average.
The string field "Lab.Value" has one or two characters (always digits), a decimal, and another character/digit - e.g., 7.3 or 10.8. Using both ToNumber and CDbl, the result...
Thanks so much. I've been working on this again since Friday morning and still kept getting a handful of duplicate patients, but just this minute I realized that some patients get multiple BP readings in one visit. So I queried just for "right arm sitting" BP and it's perfect.
Thanks again
LMcK
I'm querying an electronic health record to determine the % of patients in which blood pressure is controlled. The threshold for "control" for diabetics is a systolic BP of 130; for non-diabetics, it's 140 - so I need to classify the patient as diabetic or not before evaluating the BP value...
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