Table 2: Serum ACE levels for the study groups.

Subject groupsMean serum
ACE levels U/L ± SD
value
V’s HC (95% CI)
value
V’s atopic (95% Cl)
value
V’s anaphylaxis group (95% CI)

Healthy controls 0.530.012 (3.4, 27.9)
Atopic controls 0.860.018 (−16.1, −1.5)
Anaphylaxis 0.012 (3.4, 27.9)0.018 (−16.1, −1.5)
0.031 (1.14, 24.3)0.025 (1.6, 25.9)0.23
AACVS+ 0.015 (1.72, 15.5)0.011 (2.2, 17.1)0.81

*Cutaneous and respiratory allergy.
+Acute angioedema and cardiovascular collapse.