Does a Type of Inciting Antigen Correlate with the Presence of Lung Fibrosis in Patients with Hypersensitivity Pneumonitis?

Nevertheless, patients with fHP tended to show precipitin positivity against avian antigens more often than those with non-fHP with borderline significance (56.1 vs. 27.8%, respectively, p = 0.05) Reported exposure to birds’ antigens correlated well with the positive serum-specific G immunoglobulins (ssIgGs) against avian antigens (Spearman’s corr. coeff. 0.342, p < 0.05), whereas there was no correlation between the reported farming exposure and the presence of precipitins to thermophilic actinomycetes.

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The predictive value of BAL lymphocytosis did not reach statistical significance— Table 3 . 4.

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