OBJECTIVE OF THESIS: Investigate whether different sociodemographic, personal and environmental factors affect the duration of breastfeeding and the point of introduction of solid foods to infants. RESPONDENTS AND METHODS: the investigation included 134 women that gave birth within the time period of 1st of January 2013 and 1st of March 2015 in the area of competence of the Community Health Centre (“Dom zdravlja”) Zagreb-West. The investigation period was two months. Data was collected through the use of a questionnaire based on the questionnaire used in the Cunningham, Jackson and Oickle survey (2009). RESULTS: 51.5 % of respondents had decided on the feeding of their infant prior to conception. 90.3 % of the respondents state breastmilk as exclusive choice. During pregnancy, 37.3 % of the respondents planned to breastfeed from 9 to 12 months and 29.9 % until the baby wished. During pregnancy, 12% of the respondents smoked, and 10 % of the respondents stopped smoking as soon as the learned that they had become pregnant. During the first five months, 25.4 % of the respondents stopped breastfeeding. As the most common reason for the stopping of breastfeeding, the respondents stated that the baby refused to nurse. 24.6 % of the respondents were given baby food samples, and 11.9 % used the received food samples to feed their baby. CONCLUSION: Mothers with lower education levels and targeted breastfeeding intention breastfeed their children longer, while the mother’s age, marital status, income, number of existing children, smoking habits during nursing period, postpartum stay in hospital longer than 72 hours and the maternity leave length are not related to the duration of breastfeeding. Mothers with a higher education level, as well as those breastfeeding exclusively during the first six months, introduce solid foods to their infants later, while mothers with the highest income, as well as those with a male baby, do introduce solid food earlier. The mother’s age, number of existing children, free baby food samples, the mother’s smoking habits and antenatal class attendance do not affect the time of introduction of solid foods.