[Prevalencia alergia a proteína leche de vaca con escala COMISS, IMPE Chihuahua, marzo a mayo 2022, serie de casos].

OBJECTIVE: To know the prevalence of CMPA with the scale in patients of the pediatrics external consultation in the Municipal Institute of Pension of Chihuahua in period from march to may 2022, Series of cases.

METHODS: A search was carried out on CMPA consultations in the period from March to May 2022, permission and informed consent was requested to access the clinical file and retrospectively, an analytical, observational, non- experimental, descriptive study was carried out., the COMISS scale was applied, and formulated a series of cases.

RESULTS: The prevalence of CMPA is 0.3%. CMPA positive patients did not have statistically significant differences with the suspects in terms of age, gestational age, birth weight, maternal age, atopy or tobacco. Presenting a series of cases.

CONCLUSIONS: The prevalence of CMA with the use of COMISS was 0.3%, lower than the prevalence worldwide. The wider use of this scale is suggested to be considered in order to achieve a more accurate diagnosis.