Objective: To explore the relationships between infant and child feeding index (ICFI) and feeder's knowledge, belief and behavior. Methods: 412 6-24 month-old infants and children and their feeders from February 2018 to February 2019 were selected and divided into 6-8 month-old group (n=122), 9-11 month-old group (n=138) and 12-24 month-old group (n=152). The ICFI qualified rates of different age groups were compared, the scores and correlations of knowledge, attitude and behavior of infants and children feeders in ICFI eligible group and unqualified group were analyzed, and the influencing factors of ICFI were analyzed. Results: The ICFI score of 12-24 month-old group was significantly higher than that of 6-8 month-old group and 9-11 month-old group (P<0.05). The disqualification rate of ICFI in 12-24 month-old group was 41.45%, which was significantly lower than that in 6-8 month-old group (P<0.05). The scores of knowledge, attitude and behavior in ICFI qualified group were higher than those in unqualified group (P<0.05). ICFI was positively correlated with knowledge score, attitude score and behavior score (P<0.05). Educational level of high school and above education level, Han nationality, high knowledge score, high attitude score and high behavior score are protective factors for ICFI eligibility, the number of family residents were risk factors for ICFI eligibility. Conclusion: ICFI of 12-24 month-old infants and children in this area is high, and the rate of ICFI disqualification is low. ICFI is related to the knowledge score, attitude score and behavior score of the feeder. The knowledge, attitude and behavior of the feeder have significant impacts on ICFI of infants and children.
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