{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T05:27:00Z","timestamp":1787030820234,"version":"build-2736575974"},"reference-count":33,"publisher":"Korean Society of Nursing Science","issue":"4","license":[{"start":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T00:00:00Z","timestamp":1761609600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100002510","name":"Kongju National University","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002510","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100014188","name":"Ministry of Science and ICT","doi-asserted-by":"crossref","award":["RS-2023-00239284"],"award-info":[{"award-number":["RS-2023-00239284"]}],"id":[{"id":"10.13039\/501100014188","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["jkan.or.kr"],"crossmark-restriction":true},"short-container-title":["J Korean Acad Nurs"],"published-print":{"date-parts":[[2025,11,30]]},"abstract":"<jats:p>Purpose: This study aimed to develop a machine learning model to predict exclusive breastfeeding during the first 3 months after birth and to explore factors affecting breastfeeding outcomes.Methods: Data from 2,579 participants in the Korean Early Childhood Education &amp; Care Panel between March 1 and June 3, 2025 were analyzed using Python version 3.12.8 and Colab. The dataset was split into training and testing sets at an 80:20 ratio, and five classifiers (random forest, logistic regression, decision tree, AdaBoost, and XGBoost) were trained and evaluated using multiple performance metrics and feature importance analysis.Results: The confusion matrix of the random forest classifier model demonstrated strong performance, with a precision of 86.6%, accuracy of 84.8%, recall of 96.8%, F1-score of 91.9%, and an area under the curve of 86.0%. Twenty-one features were analyzed, from which feeding plan, breastfeeding at 1 month, marriage period, maternal prenatal weight, self-respect, alcohol consumption, grit, value placed on children, maternal age, and depression emerged as important predictors of exclusive breastfeeding in the first 3 months.Discussion: A robust model was developed to predict exclusive breastfeeding that identified feeding planning and breastfeeding at 1 month as the most influential predictors. The model could be implemented in clinical and community settings to guide tailored breastfeeding support strategies, coupled with the integration of maternal self-respect, grit, and the value placed on children in counseling programs to promote exclusive breastfeeding.<\/jats:p>","DOI":"10.4040\/jkan.25086","type":"journal-article","created":{"date-parts":[[2025,10,28]],"date-time":"2025-10-28T06:14:45Z","timestamp":1761632085000},"page":"519-527","update-policy":"https:\/\/doi.org\/10.4040\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Development of a predictive model for exclusive breastfeeding at 3 months using machine learning : a secondary analysis of a cross-sectional survey"],"prefix":"10.4040","volume":"55","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2782-108X","authenticated-orcid":true,"given":"Hyun Kyoung","family":"Kim","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2474","reference":[{"key":"ref1","volume-title":"The 2024 National Family and Fertility Survey [Internet]","year":"2024"},{"key":"ref2","volume-title":"Healthy People 2030: increase the proportion of infants who are breastfed exclusively through age 6 months-MICH\u201115 [Internet]","year":"2021"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1542\/peds.2022-057988"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1080\/17437199.2019.1630293"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.3390\/nu11102266"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1016\/j.midw.2024.103924"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph191811790"},{"key":"ref8","volume-title":"","author":"Bronfenbrenner","year":"1994"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1111\/jep.14009"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1186\/s12884-024-07010-z"},{"key":"ref11","volume-title":"","author":"Hastie","year":"2009"},{"key":"ref12","volume-title":"Korean Early Childhood Education &amp; 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