Introduction:
Low back pain (LBP) is a common condition and the leading cause of disability worldwide. Medical students may be at higher risk due to prolonged sitting and stress. The aim of this study was to examine the prevalence of LBP and disability among Polish medical students and identify associated risk factors.

Material and methods:
In this study, 533 medical students, predominantly female (66.4%) with a median age of 22, were surveyed via an online questionnaire. The survey used the Oswestry Disability Index (ODI) and Patient Health Questionnaire (PHQ-9) to evaluate LBP and depression symptoms. Demographic data and information on smoking, exercise, sitting duration, spine posture, past and present LBP, pain duration, intensity, and analgesic use were also collected.

Results:
Point prevalence LBP was 70.95% while 78.26% of participants reported past history of LBP. The median LBP intensity measured with Numerical Rating Scale (NRS) was 3 and median ODI score was 10%. Overall female medical students suffered more from LBP than males (66.4% vs 33.6%). Following LBP risk factors were identified in the studied group: past episodes of LBP (OR: 2.92), sitting 8 hours per day (OR: 2.44), as well as 10 hours or more (OR: 2.95) moderate and severe depression symptoms (OR: 2.51, OR: 7.33 respectively).

Conclusions:
Prevalence of low back pain among medical students in the studied group is high, resulting in mild disability, with females experiencing more severe symptoms than males. Past LBP episodes, sitting 8 hours or more, and depression symptoms are independent risk factors for developing LBP among Polish medical students.