Hospital length of stay (LOS) is considered a quality indicator for assessing patients’ care and hospital performance. Patients with prolonged hospital stays are more likely to consume more hospital resources during their hospitalization, up to 40% of LOS was inappropriate. This Cross-sectional study use data from the health information system (HIS) to reveal that the highest average LOS is 56 days for male patients. 41% of the sample size are older people between 50 and 69 years old, but the highest average LOS is for patients between 14-29 years old. Also, 74% of the sample size was Saudi, but the highest average was 56 days for non-Saudi patients. More than 80% receive free medical services, but the highest average is 58 days for Cash patients. The average LOS is equal for deceased and alive patients. SPSS version 21, used to address the research hypothesis, shows a highly significant relation between admission wards and LOS because the p-value is less than 0.05. The Spearman test revealed that the relationship between gender, nationality, payment type, and urgency is insignificant and has no correlation with LOS, unlike the age group. The highest frequency of diagnosis was for sepsis because the number of admissions was 119, and the maximum LOS was 152 days, followed by leukemia. The study recommends further investigation, especially in diagnosis and assessing if additional diagnoses will increase LOS.

Keywords: Length of Stay, Patient-Related Variables, Management Variables, Hospital Variables and Intensive Care Unit.