3.2 | Plasma PAF-AH activity
The distributions of PAF-AH activity in the study group and the control group were presented in figure 1. They differed substantially, which was reflected in the highly statistically significant difference in the arithmetic means in both groups.
As shown in figure 2, no significant differences were found in the arithmetic mean values ​​of plasma PAF-AH activity in the individual degrees of severity of anaphylaxis (p > 0.05). Although, these values ​​were considerably lower than the value in the control group, which was 21.38 ± 9.50 nmol/min/ml (p < 0.0001).
According to table 2, the arithmetic mean values ​​of plasma PAF-AH activity in the subgroup I-II (9.47 ± 1.87 nmol / min / ml) and in the subgroup III-IV (10.16 ± 2.50 nmol/min/ml) also did not differ significantly (p > 0.05), but were substantially lower as compared to the value in the control group (p < 0.0001).
The arithmetic mean values ​​of plasma PAF-AH activity in the smokers and non-smokers did not differ significantly (9.46 ± 1.95 nmol/min/ml vs 10.13 ± 1.61 nmol/min/ml, p = 0.201).
There was no statistically significant correlation between the plasma PAF-AH activity and most of the parameters, including the age of the patients (r = -0.035). There was only a statistically significant, but clinically irrelevant, correlation with tryptase concentration (r = 0.21).