International Journal of Academic and Applied Research (IJAAR)   Year: 2024 | Volume: 8 | Issue: 5 | Page No.: 72-77 Designing Standard Growth Chart for Toddlers of Banyuwangi Regency Using LS-Spline Nonparametric Regression Download PDF Nur Chamidah, Toha Saifudin, Ardi Kurniawan, Muhammad Althof Juniar, Risky Wahyuningsih, Farida, Sufyan Ats-Tsauri Abstract: Toddlers nutritional status are to be a health indicator of success in achieving Sustainable Development Goals (SDGs). In Indonesia, it is measured and recorded in a Towards Health Card (THC) every month at all Community Health Centers (CHCs). The CHC is available in each sub-district. The THC, which in Indonesia is called KMS, was created by referring WHO-2005 Standard Growth Chart (WHO-2005 SGC). Toddlers nutritional status is determined based on weight (W), height (H), and age (A) of toddlers and presented in the form of W/A (Weight-for-Age), H/A (Height-for-Age), and W/H (Weight-for-Height) or BMI/A (Body Mass Index-for-Age) which are three anthropometry indexes. This study aims to estimate median of toddlers weight growth, and to design a Banyuwangi Standard Growth Chart (BWI-SGC) for toddlers of Banyuwangi regency, one of regencies in Indonesia, based on recording data in CHCs of Banyuwangi regency which covers CHCs of Kertosari, Kabat, and Tampo districts. In this study we used a spline of least square in nonparametric regression model. The obtained results show that the weight of toddlers in Banyuwangi based on BWI-SGC is less than the weight of toddlers based on the WHO-2005 SGC, and the growth of girls is greater than the growth of boys.