Factors Associated With Colonoscopy Duration at Rsup Prof. Dr. I.G.N.G. Ngoerah in 2025

Colonoscopy is a key diagnostic and therapeutic procedure for colorectal diseases. With increasing procedural volume, colonoscopy duration has become an important operational parameter in endoscopy unit management. Although clinical indications and service models are assumed to influence procedure time, real-world evidence regarding determinants of colonoscopy duration remains limited, particularly in low- and middle-resource settings. This study aimed to evaluate whether One Day Care (ODC) status, examination purpose (surveillance vs. diagnostic), and malignancy status are associated with colonoscopy duration. A retrospective cross-sectional study was conducted using secondary data from a single-operator endoscopy unit at RSUP Prof. Dr. I.G.N.G. Ngoerah between January and November 2025. All eligible cases were included using total sampling (n = 133). Colonoscopy duration (minutes) was analyzed using the Mann–Whitney test and multiple linear regression (p < 0.05; 95% CI). The median colonoscopy duration was 35 minutes (mean 41.8 ± 32.3 minutes). In univariate analysis, ODC procedures were significantly shorter than non-ODC procedures (30 vs. 40 minutes; p = 0.033). No significant differences were observed based on malignancy status (p = 0.247) or examination purpose (p = 0.101). In the multivariable analysis, no independent predictors of colonoscopy duration were identified. Basic clinical categorization and service model were not independently associated with colonoscopy duration in this real-world cohort. These findings suggest that unmeasured workflow dynamics or system-level factors may influence procedural time beyond simple clinical stratification.