The Effect of Chronic Disease Management on the Treat-to-Target of Gout: A Cross-Sectional Study

Background: The treat-to-target (T2T) strategy is essential for patients with gout. However, the rate of T2T is low. This study aimed to explore doctor-led chronic disease management on the T2T of gout, survey the rate of T2T and assess the predictors associated with poor control of serum urate levels (SUA) in a large population of patients with gout receiving urate-lowering treatment (ULT). Methods: A multi-center, cross-sectional study was conducted. We surveyed the relevant information of outpatients who received ULT for more than six months using electronic questionnaires, including demographics, disease-related conditions, comorbid conditions, and management. The patients with gout were divided into the SUA > 360 µmol/L and ≤ 360 µmol/L, and the patient characteristics between the two groups were compared. We analyzed the predictors of SUA > 360 µmol/L and poor disease control.Results: We collected 425 (90.8% of the patients) valid questionnaires. There were significant differences in the gender, education level, regular visits, medication adherence, diabetes, economic burden and community doctor's help between the SUA > 360 µmol/L (n=311, 73.18%) and ≤ 360 µmol/L (n=114, 26.82%) groups. The predictors of SUA >360 µmol/L were general medication adherence (OR=2.35; 95% CI 1.17–4.77; p=0.016), poor medication adherence (OR=4.63; 95% CI 2.28–9.51; p<0.001) and community doctor’s help (OR=0.60; 95% CI 0.37–0.97; p=0.036 for full model, OR=0.58; 95% CI 0.36–0.93; p=0.023 for simplified model). There were significant differences in the gender, regular visits, medication adherence, gout popular science, established health files, and community doctor’s help between the not well controlled (n=361, 84.94%) and well controlled (n=61, 14.35%) groups. The predictors of not well controlled were Tophi (OR=2.48; 95% CI 1.17–5.61; p=0.023), general medication adherence (OR=2.78; 95% CI 1.28–6.05; p=0.009), poor medication adherence (OR=6.23; 95% CI 2.68–14.77; p<0.001) and no gout popular science (OR=4.07; 95% CI 1.41–13.91; p=0.015).Conclusion: The T2T and well controlled rates were very low. The medication adherence, the community doctor’s help and gout popular science which was the doctor-led chronic gout management should be further improved to increase the T2T and well controlled rate.Trial registration: ChiCTR, ChiCTR2000034700, Registered 15 July 2020. http://www.chictr.org.cn/showproj.aspx?proj=55778