KEMAS 18 (3) (2023) 437-445 Jurnal Kesehatan Masyarakat http://journal.unnes.ac.id/nju/index.php/kemas Complaints of Low Back Pain in Tailors Santy Deasy Siregar1,3  , Putranto Manalu2, Rapael Ginting3, Victor Trismanjaya Hulu3, Jeremia Chandra Partogi Siallagan1 1Departement of Occupational Health and Safety, Faculty of Medicine, Destistry, and Health Science Universitas Prima Indonesia, Medan 2Departement of Health Services Management, Faculty of Medicine, Destistry, and Health Science Universitas Prima Indonesia, Medan 3Departement of Epidemiology, Faculty of Medicine, Destistry, and Health Science Universitas Prima Indonesia, Medan Article Info Article History: Submitted November 2022 Accepted January 2023 Published January 2023 Keywords: low back pain; ergonomic chair; length of sitting; tailor DOI https://doi.org/10.15294/ kemas.v18i3.39909 Abstract Low back pain (LBP) is one of the musculoskeletal disorders as a result of incorrect er- gonomics. Te impact caused by low back pain is bad posture, stifness, pinched nerve, and muscle weakness. Tis study aims to determine the relationship between ages, years of service, length of sitting, work posture, and the chair’s ergonomics with complaints of low back pain in tailors at Pasar Petisah, Kota Medan, with 35 workers based on inclu- sion and exclusion criteria. Te research tools are interviews, observations, and flling out questionnaires. Tis sampling technique is used purposive sampling methods. Data were analyzed using the STATCAL application with a 5% chi-square test. Based on the result, we concluded that there is a long relationship between ages (p=0,02), years of service (p=0,04), length of sitting (p=0,01), and work posture (p=0,03) with the occur- rence of low back pain tailors. Tailors in the Petisah Market in Medan City are at risk for complaints of low back pain based on age, long years of service, a risky length of sitting, and a risky work posture. If the workers ignore low back pain, the impact is the emer- gence of serious problems such as stifness in the spine, fractures, pinched nerves, and can even cause death.  Correspondence Address: Departement of Occupational Health and Safety, Faculty of Medicine, Destistry, and Health Science Universitas Prima Indonesia, Medan, Indonesia Email : santysiregar@unprimdn.ac.id pISSN 1858-1196 eISSN 2355-3596 sports, postural habits, non-ergonomic work, sedentary lifestyle, level of physical activity, smoking, and others (Akkarakittichoke & Janwantanakul, 2017; Quintino et al., 2017). Sitting longer than 7 hours per day can cause damage to the lumbar tissue system (Maradei García et al., 2016; Shenbagasundaram & Balasuburamaniam, 2017). Te classifcation of LBP is divided into three types, namely: acute low back pain, which is characterized by pain that arises suddenly from daily activities in less than a week, sub-acute low back pain, which is characterized by pain that occurs continuously for 5-11 weeks, and chronic low back pain, which is characterized by serious injury from physical activity or an accident that causes spinal damage (Stevans et al., 2021; Traeger et al., 2019; Introduction Low back pain (LBP) has been declared a burden of disease by WHO and reported as a signifcant cause of disability worldwide and continues to experience an increased incidence of cases. LBP ranked highest in all non-communicable disease cases (Mohideen, 2021). Te prevalence in one year can reach up to 56%, and the lifetime prevalence is 84% (Arias-vázquez et al., 2020). LBP’s etiology is multifactorial and classifed according to the mechanism of injury, etiologic diversity, evolutionary time, and degree of radicular involvement (Schitter et al., 2022). Tese problems can be associated with various types of factors such as age, gender, decreased fexibility and muscle mobility, obesity, competitive