How to Cite: Wanadiatri, H., Irawan, R., Ruqayyah, S., & Pratiwi, L. P. I. S. S. (2023). Correlation between FEV1/FVC ratio with Body Mass Index (BMI) and absolute eosinophils in patients with acute exacerbation of asthma at Mataram City Hospital, West Nusa Tenggara in 2019–2020. International Journal of Health Sciences, 6(S9), 4538–4547. https://doi.org/10.53730/ijhs.v6nS9.13824 International Journal of Health Sciences ISSN 2550-6978 E-ISSN 2550-696X © 2022. Manuscript submitted: 18 Oct 2022, Manuscript revised: 9 Nov 2022, Accepted for publication: 18 Dec 2022 4538 Correlation between FEV1/FVC ratio with Body Mass Index (BMI) and absolute eosinophils in patients with acute exacerbation of asthma at Mataram City Hospital, West Nusa Tenggara in 2019–2020 Halia Wanadiatri Faculty of Medicine, Universitas Islam Al-Azhar, Mataram, Indonesia Risky Irawan Faculty of Medicine, Universitas Islam Al-Azhar, Mataram, Indonesia Siti Ruqayyah Faculty of Medicine, Universitas Islam Al-Azhar, Mataram, Indonesia Luh Putu Indira Satya Sungu Pratiwi Faculty of Medicine, Universitas Islam Al-Azhar, Mataram, Indonesia Abstract---This study aimed to analyze Correlation between FEV1/FVC ratio with body mass index (BMI) and absolute eosinophils in patients with acute exacerbation of asthma. A cross sectional study based on the medical records of asthma patients from June 2019 to June 2020, with a total population of 180 cases conducted at Mataram City Regional General Hospital, West Nusa Tenggara. The data were analyzed using multiple linier regression using SPSS. The data collected showed that getting older reduces the value of FEV1/FVC, but it is not statistically significant (b= -0.03; 95% CI= - 0.18 to 0.13; p= 0.746). Male gender has a lower probability of having a FEV1/FVC value than female sex, but it is not statistically significant (b= -2.78; 95% CI= -6.38 to 0.83; p= 0.130). An increase in the eosinophil score reduced the FEV1/FVC value by 6.03 units and was statistically significant (b= -6.03; 95% CI= -7.80 to -4.26; p< 0.001). An increase in body mass index decreased the FEV1/FVC value by 1.22 units and was statistically significant (b= -1.22; 95% CI= -1.71 to -0.75; p< 0.001). Keywords---BMI, absolute eosinophils, asthma, FEV1/FVC.