[Knowledge of mothers of children under 5 years of age about vaccination schedule].

Objective: Determine the level of knowledge of mothers of children under 5 years of age about vaccination schedule.

Methods: Cross-sectional, observational, descriptive, and analytical study, carried out in the Family Medicine Unit 1 of Orizaba, Veracruz, in which two questionnaires were applied to mothers of children under 5 years of age, one prepared by PAHO that qualifies attitudes. of parents about vaccines, and another that evaluates knowledge of immunizations. Absolute frequencies and percentages were estimated; and the association with Pearson's X² was determined.

Results: A total of 138 women were registered, with age limits of 18 to 48 years. The level of knowledge was high (70.3%) and was related to the age, education (p = 0.00) and occupation (p = 0.03) of the mothers. The highest frequencies were for housewives (47.1%), professionals (3.5%), married (60.2%) and of the Catholic religion (81.2%).

Conclusions: This study confirms the null hypothesis, which indicates that 70.3% have high knowledge about vaccination, and it is associated with the age, education, and occupation of the mothers.