TABLE 3.

Active surveillance programs for anaphylaxis and its performance.

Items in surveillance programs	Positive frequency of triggers	Frequency of anaphylaxis	PPV (%)
Diagnosis contains “anaphylactic shock”	31	30	96.78
Progress notes contain “anaphylactic shock" and medical orders contain “epinephrine or glucocorticoids combined with promethazine”	19	11	57.89
Progress notes contain “allergy" and “adverse skin or respiratory or nervous system or digestive or circulatory system reactions,” and medical orders contain “epinephrine or glucocorticoids combined with promethazine”	259	53	20.46
Total	309	94	30.42