This open access article is under the CC-BY-SA license. BACKGROUNDStunting is a condition of children's nutritional status that is not related to age. Stunting is also a condition of disproportionate weight and height at a certain age. Stunting vigilance is divided into two groups, namely internal factors and external factors. Internal factors are low intake of children, low intake of pregnant women, etc. External factor is infection in children. Stunting is a nutritional problem that facilitates infection, reduces children's intelligence, and creates stigma in society. This condition will regulate the

ARTI (Acute Respiratory Tract Infection) is an infectious disease of the upper or lower respiratory tract that can cause various spectrums of disease from mild infection to severe and deadly disease, depending on the pathogen causing it. Mother's education level and nutritional status are factors that are indirectly related to the incidence of ARTI in children. Nutritional status has an important role in the child's immune system. Observational analytic quantitative research with a cross sectional study design. The sampling technique used consecutive sampling. The study was conducted at District Hospitals and all Public Health Centers in North Lombok Regency in July 2022. The research sample was 207 respondents . The data obtained were analyzed by Chi Square test. The limit of significance value is (p≤ 0.05). The study showed that from 207 respondents, 155 children (74.90%) who had positive ARTI had middle maternal education. The results of the bivariate analysis showed that the p-value <0.05 (p-value = 0.00). Based on the nutritional status variable, from 207 respondents, 139 people (95.90%) positively experienced ARTI with malnutrition. The results of the bivariate analysis showed that the p-value < 0.00 (p-value = 0.00). The PR value obtained in this study was PR > 1 (PR = 6.76) (95% CI = 2.46 – 18.57). There is a significant relationship between the mother's education level and nutritional status of children incidence of ARI in children aged 0-5 years in North Lombok Regency, NTB Province.

Pneumonia is a disease that attacks the lung tissue and is characterized by coughing and difficulty breathing which causes a wide spectrum of disease from mild to severe and deadly infections, depending on the causative pathogen. Nutritional status is a factor that is indirectly related to the incidence of pneumonia in children. Nutritional status has an important role in the child's immune system, malnutrition will be associated with a condition of decreased immune system so that various diseases can arise easily. The purpose of this study was to determine the relationship between nutritional status and the incidence of pneumonia in children in North Lombok District, NTB Province. The method used in this research is observational quantitative analytic research with a cross sectional study design. The sampling technique used consecutive sampling. The research was conducted at the District Hospital and all Community Health Centers in North Lombok Regency in April 2023. The research sample was 75 respondents. The data obtained were analyzed by Chi Square test. The significance value limit is (p≤ 0.05). The study showed that from 75 respondents, 57 people (76.0%) had positive pneumonia with malnutrition. The results of the bivariate analysis showed that the p - value < 0.05 (p - value = 0.03). There is a significant relationship between nutritional status and the incidence of pneumonia in children in North Lombok, West Nusa Tenggara.