Introduction: The first six months of an infant's life are crucial for the child's physical and psychological development. During this period, maternal feeding practices significantly impact infant nutrition and growth. The aim of this study was to identify factors associated with feeding difficulties in infants younger than six months. Methods: The study was conducted using a CAWI method. The study group consisted of 555 mothers who completed an online questionnaire about demographics, feeding methods, and feeding difficulties experienced, measured using the Montreal Children's Hospital Feeding Scale (MCH-FS). Infant feeding methods were clearly distinguished as direct breastfeeding, breast milk feeding (expressed milk), and formula feeding. Statistical analyses included effect sizes (Cohen's d) and 95% confidence intervals (95% CI). Results: In the study group, 65% of mothers reported feeding difficulties. Significant predictors of feeding difficulties included maternal overweight and obesity (p = 0.041; Cohen's d = 0.37, 95% CI [0.15, 0.59]), lower maternal education (p = 0.014; Cohen's d = 0.45, 95% CI [0.22, 0.68]), lack of adequate partner support (38%), and the use of mixed feeding methods (mean difference = 4.4 points, p = 0.027; Cohen's d = 0.46, 95% CI [0.23, 0.69]). Conclusions: Feeding difficulties during infancy are common and influenced by maternal health and sociodemographic factors. These findings emphasize the importance of targeted educational resources and lactation support interventions tailored specifically to mothers at increased risk.
Keywords: BMI; Montreal Children’s Hospital Feeding Scale; breastfeeding; early childhood nutrition; feeding difficulties; formula feeding; infant feeding; maternal education; maternal support strategies; mixed feeding.