In respect to diagnostic supporting tests, a positive prick test was found in 13 patients, of which 5 were positive to fresh milk, 5 to egg white, 1 to fresh milk and egg white, 1 to fish and 1 to peanuts. The 6 patients with a positive prick test to cow’s milk had values greater than 5 kUA/L by ImmunoCAP. Regarding fecal laboratory tests; EDN had a median of 508.5 mg/dL with an interquartile range (IQR) between 160.25 and 868 mg/dL and FC was found to be 284 mg/dL with an IQR between 138.5 and 415.5 mg/dL. Other data can be seen in Table 3.
Table 3. Immunological laboratory tests of 64 patients with CMPA, Peru 2021-2022.