Background:Rotator cuff tears (RCT) rank high among causes of shoulder pain in primary care. Surgical repair of RCT is indicated when judged refractory to clinical treatment. Comorbidities and environmental issues may impact the surgical result of RCT repair.Objectives:to determine the impact of Obesity and Smoking in the outcome of low-income patients subjected to RCT repair.Methods:Low-income (<5500,00 US$ annualpib per capta*) patients living in Fortaleza-CE, Brazil were prospectively (2016-2018) evaluated in the Orthopedic and Rheumatology Services of the Hospital Geral de Fortaleza. Demographics and clinical data focusing Obesity (BMI >/≤ 30) and Smoking status (present/absent) were registered. Pain (0 – 10 cm VAS) and functional shoulder score evaluation by the University of California at Los Angeles Shoulder Score (UCLA) and American Shoulder and Elbow Surgeons (ASES) scoring systems following at least 2 years post-operative follow-up were recorded.Results:Thirty-nine individuals, 60.9±7.1 years-old, 30 female (68.3%) with 5.1 ± 1.9 years follow-up were evaluated; 21 (44.7%) were Smokers and 12 (25.5%) Obese (BMI >30). Other comorbidities included 16 arterial hypertension, 18 dyslipidemia, 17 osteoarthritis, 4 rheumatoid arthritis, 1 gout. Pain VAS values were 5.1 ± 2.6 vs 3.1 ± 2.8 in Obese vs Non-Obese (p=0.03) and 4 ± 2.8 vs 3.37 ± 2.99 in Smokers vs Non-Smokers (p=0.26), respectively. UCLA was 22.4 ± 8.2 vs. 28.79 ± 5.6 in Obese vs Non-Obese (p=0.004) and 26.2 ± 6.5 vs. 27.75 ± 7.18 (p=0.25) in Smokers vs. Non-smokers, respectively. ASES was 47.89 ± 28.3 vs. 68.1 ± 25.78 (p=0.021) in Obese vs. Non-obese and 58.98 ± 26.69 vs 65.3 ± 28.1 (p=0.243) in Smokers vs Non-Smokers, respectively.Conclusion:Using Patient Reported Outcome instruments, these long-term data show that Obesity negatively impacts the outcome of surgical repair of RCT in low-income patients. Smoking status was apparently irrelevant but the number of cigarettes smoked daily was not considered. Emphasis on weight reduction is a practical, affordable though hard to implement measure that could improve surgical results when repairing RCT.References:*https://pt.wikipedia.org/wiki/Lista_de_munic%C3%ADpios_do_Brasil_por_PIBDisclosure of Interests:Christine Silva: None declared, Natalia Mourão: None declared, Joaquim Landim: None declared, Leila da Rocha: None declared, Marco Lacerda: None declared, Airton Rocha Speakers bureau: Not related to the present work