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. Author manuscript; available in PMC: 2021 Jun 21.
Published in final edited form as: Ann Emerg Med. 2009 Feb 13;54(1):72–77. doi: 10.1016/j.annemergmed.2008.12.034

Table 2.

Patient self-reported allergy histories, No. (%).

Allergy History No Penicillin Allergy on Testing, N=137 Penicillin Allergy on Testing, N=13
Told by family only 49 (35.8) 5 (38.5)
Told by physician only 6 (4.4) 0 (0)
Adverse reaction only 62 (45.3) 6 (46.2)
Told by physician and family 3 (2.2) 1 (7.7)
Adverse reaction and told by family 9 (6.6) 0 (0)
Adverse reaction and told by physician 8 (5.8) 1 (7.7)
Known of allergy for <1 y 2 (1.5) 1 (7.7)
Known of allergy for 1–5 y 8 (5.8) 2 (15.4)
Known of allergy for >5 y 107 (78.1) 9 (69.2)
Known of allergy for unknown time 20 (14.6) 1 (7.7)
No known previous skin test for penicillin allergy 137 (100) 11 (84.6)
Previous skin test for penicillin allergy 0 (0) 2 (15.4)