3. Comorbidity of allergic diseases and sensitization in
schoolchildren with PFAS
Children with PFAS were more likely to be diagnosed with AR and AD
compared with those without PFAS (75.6% vs. 47.6%, p = 0.001; 31.7%
vs. 15.9%, p = 0.016) (Table 1). There was no significant difference in
prevalence of asthma between the PFAS group and non-PFAS group (7.3%
vs. 5.0%, p = 0.461).
Patients aged 7 with PFAS showed a significantly higher sensitization
rate during the skin prick test to birch (34.4%), alder (12.5%), Hop J
(12.5%), oak (18.8%), and ragweed (6.3%) than those without PFAS
(Figure 2). However, there was no significant difference between the two
groups in the sensitization to food allergens (data not shown), indoor
allergens such as Der f , Der p, and dog, or other outdoor
allergens, such as Alternaria .