<![CDATA[Low back pain (LBP) is one of the leading causes of disability and reduced work productivity worldwide, particularly among workers engaged in static occupational activities such as administrative staff. This study aimed to analyze the association between obesity, represented by body mass index (BMI) as a quantitative indicator, and LBP among administrative staff at RSUD Banten. An observational analytic study with a cross-sectional design was conducted from February to March 2026. A total of 84 administrative staff were recruited using consecutive sampling. BMI was obtained from direct anthropometric measurements, and LBP was assessed using a single closed-ended question regarding the presence of pain or discomfort in the lower back within the past 12 months. Data were analyzed using the Mann–Whitney U test following a non-normal distribution of BMI confirmed by the Kolmogorov–Smirnov test. This study was conducted with ethical clearance number 44/UN43.20/KEPK/2026. The mean BMI of respondents was 25.50 ± 4.39 kg/m², with a median of 25.2 kg/m²; 50.0% were classified as obesity class I–II based on the WHO Asia-Pacific criteria. The prevalence of LBP was 40.5% (n=34). The median BMI was 25.67 kg/m² in the LBP group and 24.86 kg/m² in the non-LBP group. The Mann–Whitney U test yielded p = 0.529 with an effect size of r = 0.069, indicating a trivial and non-significant difference. Obesity represented by BMI was not significantly associated with LBP among administrative staff at RSUD Banten.]]>
