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Introduction: Drooling in Parkinson's disease (PD) is frequent but often goes underrecognized. Our aim was to examine the prevalence of drooling in a PD cohort and compare it with a control group. Specifically, we identified factors associated with drooling and conducted subanalyses in a subgroup of very early PD patients. Patients and Methods . PD patients who were recruited from January 2016 to November 2017 (baseline visit; V0) and evaluated again at a 2-year ± 30-day follow-up (V2) from 35 centers in Spain from the COPPADIS cohort were included in this longitudinal prospective study. Subjects were classified as with or without drooling according to item 19 of the NMSS (Nonmotor Symptoms Scale) at V0, V1 (1-year ± 15 days), and V2 for patients and at V0 and V2 for controls., Results: The frequency of drooling in PD patients was 40.1% (277/691) at V0 (2.4% (5/201) in controls; p  < 0.0001), 43.7% (264/604) at V1, and 48.2% (242/502) at V2 (3.2% (4/124) in controls; p  < 0.0001), with a period prevalence of 63.6% (306/481). Being older (OR = 1.032; p  = 0.012), being male (OR = 2.333; p  < 0.0001), having greater nonmotor symptom (NMS) burden at the baseline (NMSS total score at V0; OR = 1.020; p  < 0.0001), and having a greater increase in the NMS burden from V0 to V2 (change in the NMSS total score from V0 to V2; OR = 1.012; p  < 0.0001) were identified as independent predictors of drooling after the 2-year follow-up. Similar results were observed in the group of patients with ≤2 years since symptom onset, with a cumulative prevalence of 64.6% and a higher score on the UPDRS-III at V0 (OR = 1.121; p  = 0.007) as a predictor of drooling at V2., Conclusion: Drooling is frequent in PD patients even at the initial onset of the disease and is associated with a greater motor severity and NMS burden., Competing Interests: Santos García D. has received honoraria for educational presentations and advice service by Abbvie, UCB Pharma, Lundbeck, KRKA, Zambon, Bial, Italfarmaco, Teva, Archímedes, Esteve, Stada, and grants from the Spanish Ministry of Economy and Competitiveness [PI16/01575] co-founded by ISCIII (Concesión de subvenciones de Proyectos de Investigación en Salud de la convocatoria 2020 de la Acción Estratégica en Salud 2017–2020 por el proyecto “PROGRESIÓN NO MOTORA E IMPACTO EN LA CALIDAD DE VIDA EN LA ENFERMEDAD DE PARKINSON”). De Deus Fonticoba T.: None. Cores Bartolomé C. has received honoraria for educational presentations and advice service by Lundbeck and UCB Pharma. Feal Painceiras M. J.: None. Íñiguez Alvarado MC: None. Jesús S. has received honoraria from AbbVie, Bial, Merz, UCB, and Zambon and holds the competitive contract “Juan Rodés” supported by the Instituto de Salud Carlos III. She has received grants from the Spanish Ministry of Economy and Competitiveness (PI18/01898) and the Consejería de Salud de la Junta de Andalucía (PI-0459-2018). Buongiorno M. T.: Planellas LL.: None. Cosgaya M.: None. García Caldentey J. has received honoraria for educational presentations and advice service by Qualigen, Nutricia, Abbvie, Italfarmaco, UCB Pharma, Lundbeck, Zambon, Bial, and Teva. Caballol N. has received honoraria from Bial, Italfarmaco, Qualigen, Zambon, UCB, Teva, and KRKA and sponsorship from Zambon, TEVA, and Abbvie for attending medical conferences. Legarda I. has received honoraria for educational presentations and advice service by Abbvie, UCB Pharma, Zambon, Bial, and Teva. Hernández Vara J. has received travel bursaries and educational grants from Abbvie and has received honoraria for educational presentations from Abbvie, Teva, Bial, Zambon, Italfarmaco, and Sanofi-Genzyme. Cabo I. has received honoraria for educational presentations and advice service by Abbvie, Zambon, and Bial. López Manzanares L.: Compensated advisory services, consulting, research grant support, or speaker honoraria: AbbVie, Acorda, Bial, Intec Pharma, Italfarmaco, Pfizer, Roche, Teva, UCB, and Zambon. González Aramburu I.: None. Ávila Rivera MA. has received honoraria from Zambon, UCB Pharma, Qualigen, Bial, and Teva and sponsorship from Zambon and Teva for attending conferences. Gómez Mayordomo V.: None. Nogueira V.: None. Puente V. has served as consultant for Abbvie and Zambon; has received grant/research from Abbvie. Dotor García-Soto J.: Compensated advisory services, consulting, research grant support, or speaker honoraria: Merck, Sanofi-Genzyme, Allergan, Biogen, Roche, UCB, and Novartis. Borrué C.: None. Solano Vila B. has received honoraria for educational presentations and advice service by UCB, Zambon, Teva, Abbvie, and Bial. Álvarez Sauco M. has received honoraria for educational presentations and advice service by Abbvie, UCB Pharma, Zambon, Bial, and Teva. Vela L. has received honoraria for educational presentations and advice service by Abbvie, UCB Pharma, Lundbeck, KRKA, Zambon, Bial, and Teva. Escalante S. has received honoraria for educational presentations and advice service by Abbvie, Zambon, and Bial. Cubo E.: Travel grants: Abbvie, Allergan, Boston; Lecturing honoraria: Abbvie, International Parkinson´s disease Movement Disorder Society. Carrillo Padilla F. has received honoraria from Zambon (SEN Congress assistance). Martínez Castrillo JC. has received research support from Lundbeck, Italfarmaco, Allergan, Zambon, Merz, and Abbvie. He has received speaking honoraria from AbbVie, Bial, Italfarmaco, Lundbeck, Krka, TEVA, UCB, Zambon, Allergan, Ipsen, and Merz. Sánchez Alonso P. has received honoraria for educational presentations and advice service by Abbvie, UCB Pharma, Lundbeck, KRKA, Zambon, Bial, and Teva. Alonso Losada M. G. has received honoraria for educational presentations and advice service by Zambon and Bial. López Ariztegui N. has received honoraria for educational presentations and advice service by Abbvie, Italfarmaco, Zambon, and Bial. Gastón I. has received research support from Abbvie and Zambon and has served as a consultant for Abbvie, Exelts, and Zambon. Kulisevsky J.: (1) Consulting fees: Roche, Zambon; (2) Stock/allotment: No; (3) Patent royalties/licensing fees: No; (4) Honoraria (e.g. lecture fees): Zambon, Teva, Bial, UCB; (5) Fees for promotional materials: No; (6) Research funding: Roche, Zambon, Ciberned; Instituto de SaludCarlos III; FundacióLa Maratóde TV3; (7) Scholarship from corporation: No; (8) Corporate laboratory funding: No; (9) Others (e.g. trips, travel, or gifts): No. Blázquez Estrada M. has received honoraria for educational presentations and advice service by Abbvie, Abbott, UCB Pharma, Allergan, Zambon, Bial, and Qualigen. Seijo M. has received honoraria for educational services from KRKA, UCB, Zambon, Bial; travel grants from Daiichi and Roche. Ruiz Martínez J. has received honoraria for educational presentations, attending medical conferences, and advice service by Abbvie, UCB Pharma, Zambon, Italfarmaco, Bial, and Teva. Valero C. has received honoraria for educational services from Zambon, Abbvie, and UCB. Kurtis M. has received honoraria from Bial, the Spanish Neurology Society, and the International and Movement Disorders Society. de Fábregues O. has received honoraria for educational presentations and advice service by Bial, Zambon, Abbvie, KRKA, and Teva. González Ardura J. has recieved honoraria for speking from italofarma, Krka, Genzyme, UCB, Esteve, Psyma iberica marketing research SL and Ferrer, course grant from Teva and travel grant from Merck. Alonso Redondo R.: None. Ordás C.: None. López Díaz L. M. has received honoraria from UCB, Lundbeck, and KRKA. McAfee D.: None. Martínez-Martin P. has received honoraria from National School of Public Health (ISCIII), Editori-al Viguera and Takeda Pharmaceuticals for lecturing in courses, and from the International Parkinson and Movement Disorder Society (MDS) for management of the Program on Rating Scales. Mir P. has received honoraria from AbbVie, Abbott, Allergan, Bial, Merz, UCB, and Zambon and have received grants from the Spanish Ministry of Economy and Competitiveness [PI16/01575] co-founded by ISCIII (Subdirección General de Evaluación y Fomento de la Investigación) and by Fondo Europeo de Desarrollo Regional (FEDER), the Consejería de Economía, Innovación, Ciencia y Empleo de la Junta de Andalucía [CVI-02526, CTS-7685], the Consejería de Salud y Bienestar Social de la Junta de Andalucía [PI-0437-2012, PI-0471-2013], the Sociedad Andaluza de Neurología, the Jacques and Gloria Gossweiler Foundation, the Fundación Alicia Koplowitz, the Fundación Mutua Madrileña., (Copyright © 2023 Diego Santos-García et al.)

Introduction: In a degenerative disorder such as Parkinson's disease (PD), it is important to establish clinical stages that allow to know the course of the disease. Our aim was to analyze whether a scale combining Hoehn and Yahr's motor stage (H&Y) and the nonmotor symptoms burden (NMSB) (assessed by the nonmotor symptoms scale (NMSS)) provides information about the disability and the patient's quality of life (QoL) with regard to a defined clinical stage., Materials and Methods: Cross-sectional study in which 603 PD patients from the COPPADIS cohort were classified according to H&Y (1, stage I; 2, stage II; 3, stage III; 4, stage IV/V) and NMSB (A: NMSS = 0-20; B: NMSS = 21-40; C: NMSS = 41-70; D: NMSS ≥ 71) in 16 stages (HY.NMSB, from 1A to 4D). QoL was assessed with the PDQ-39SI, PQ-10, and EUROHIS-QOL8 and disability with the Schwab&England ADL (Activities of Daily Living) scale., Results: A worse QoL and greater disability were observed at a higher stage of H&Y and NMSB ( p < 0.0001). Combining both (HY.NMSB), patients in stages 1C and 1D and 2C and 2D had significantly worse QoL and/or less autonomy for ADL than those in stages 2A and 2B and 3A and 3B, respectively ( p < 0.005; e.g., PDQ-39SI in 1D [ n  = 15] vs 2A [ n  = 101]: 28.6 ± 17.1 vs 7.9 ± 5.8; p < 0.0001)., Conclusion: The HY.NMSB scale is simple and reflects the degree of patient involvement more accurately than the H&Y. Patients with a lower H&Y stage may be more affected if they have a greater NMS burden., Competing Interests: Santos García D has received honoraria for educational presentations and advice service by AbbVie, UCB Pharma, Lundbeck, KRKA, Zambon, Bial, Italfarmaco, and Teva. Paz González JM has received honoraria for educational presentations and/or advice service by UCB Pharma, Lundbeck, KRKA, and Zambon. Jesús S has received honoraria from AbbVie, Bial, Merz, UCB, and Zambon and holds the competitive contract “Juan Rodés” supported by the Instituto de Salud Carlos III. She has received grants from the Spanish Ministry of Economy and Competitiveness (PI18/01898) and the Consejería de Salud de la Junta de Andalucía (PI-0459-2018). Aguilar M obtained from UCB and Schwabe with assistance to a Congress and Nutricia with assistance to a Congress and payment of lecture. Planellas LL has received travel bursaries grant from AbbVie. García Caldentey J has received honoraria for educational presentations and advice service by Qualigen, Nutricia, AbbVie, Italfarmaco, UCB Pharma, Lundbeck, Zambon, Bial and Teva. Caballol N has received honoraria from Bial, Italfarmaco, Qualigen, Zambon, UCB, Teva, and KRKA and sponsorship from Zambon, TEVA, and AbbVie for attending medical conferences. Legarda I has received honoraria for educational presentations and advice service by AbbVie, UCB Pharma, Zambon, Bial, and Teva. Hernández Vara J has received travel bursaries and educational grants from AbbVie and has received honoraria for educational presentations from AbbVie, Teva, Bial, Zambon, Italfarmaco, and Sanofi-Genzyme. Cabo I has received honoraria for educational presentations and advice service by AbbVie, Zambon, and Bial. López Manzanares L compensated advisory services, consulting, research grant support, or speaker honoraria from AbbVie, Acorda, Bial, Intec Pharma, Italfarmaco, Pfizer, Roche, Teva, UCB, and Zambon. Ávila Rivera MA has received honoraria from Zambon, UCB Pharma, Qualigen, Bial, and Teva and ana sponsorship from Zambon and Teva for attending conferences. Puente V has served as consultant for AbbVie and Zambon and has received grant/research from AbbVie. García Moreno JM has received honoraria for educational presentations and advice service by AbbVie, Ital-Pharma, Lundbeck, Merz, KRKA, UCB, Pharma, Zambon, Bial, and Teva. Solano Vila B has received honoraria for educational presentations and advice service by UCB, Zambon, Teva, AbbVie, Bial. Álvarez Sauco M has received honoraria for educational presentations and advice service by AbbVie, UCB Pharma, Zambon, Bial, and Teva. Vela L has received honoraria for educational presentations and advice service by AbbVie, UCB Pharma, Lundbeck, KRKA, Zambon, Bial, and Teva. Escalante S has received honoraria for educational presentations and advice service by AbbVie, Zambon, and Bial. Cubo E has travel grants from AbbVie, Allergan, and Boston; lecturing honoraria from AbbVie and International Parkinson's Disease Movement Disorder Society. Carrillo Padilla F has received honoraria from Zambon (SEN Congress assistance). Martínez Castrillo JC has received research support from Lundbeck, Italfarmaco, Allergan, Zambon, Merz, and AbbVie and speaking honoraria from AbbVie, Bial, Italfarmaco, Lundbeck, Krka, TEVA, UCB, Zambon, Allergan, Ipsen, and Merz. Sánchez Alonso P has received honoraria for educational presentations and advice service by AbbVie, UCB Pharma, Lundbeck, KRKA, Zambon, Bial, and Teva. Alonso Losada MG has received honoraria for educational presentations and advice service by Zambon and Bial. López Ariztegui N has received honoraria for educational presentations and advice service by AbbVie, Italfarmaco, Zambon, and Bial. Gastón I has received research support from AbbVie and Zambon and has served as a consultant for AbbVie, Exelts, and Zambon. Kulisevsky J has obtained the following: (1) consulting fees: Roche and Zambon; (2) honoraria (e.g., lecture fees): Zambon, Teva, Bial, and UCB; (3) research funding: Roche, Zambon, Ciberned, Instituto de SaludCarlos III, and Fundació La Marató De TV3. Blázquez Estrada M has received honoraria for educational presentations and advice service by AbbVie, Abbott, UCB Pharma, Allergan, Zambon, Bial, and Qualigen. Seijo M has received honoraria for educational services from KRKA, UCB, Zambon, and Bial and travel grants from Daiichi and Roche. Ruiz Martínez J has received honoraria for educational presentations, attending medical conferences, and advice service by AbbVie, UCB Pharma, Zambon, Italfarmaco, Bial, and Teva. Valero C has received honoraria for educational services from Zambon AbbVie and UCB. Kurtis M has received honoraria from Bial, the Spanish Neurology Society, and the International and Movement Disorders Society. de Fábregues O has received honoraria for educational presentations and advice service by Bial, Zambon, AbbVie, KRKA, and Teva. González Ardura J has received honoraria for speaking from Italfarmaco, Krka, Genzyme, UCB, Esteve, Psyma iberica marketing research SL and Ferrer, course grant from Teva, and travel grant from Merck. López Díaz L has received honoraria from UCB, Lundbeck, and KRKA. Mir P has received honoraria from AbbVie, Abbott, Allergan, Bial, Merz, UCB, and Zambon and has received grants from the Spanish Ministry of Economy and Competitiveness (PI16/01575) cofounded by ISCIII (Subdirección General de Evaluación y Fomento de la Investigación) and by Fondo Europeo de Desarrollo Regional (FEDER), the Consejería de Economía, Innovación, Ciencia y Empleo de la Junta de Andalucía (CVI-02526, CTS-7685), the Consejería de Salud y Bienestar Social de la Junta de Andalucía (PI-0437-2012, PI-0471-2013), the Sociedad Andaluza de Neurología, the Jacques and Gloria Gossweiler Foundation, the Fundación Alicia Koplowitz, and the Fundación Mutua Madrileña. Martínez-Martin P has received honoraria from Editorial Viguera for lecturing in courses, International Parkinson and Movement Disorder Society (IPMDS) for management of the Program on Rating Scales, Air Liquide, AbbVie, and HM Hospitales de Madrid for advice in clinic-epidemiological studies; license fee payments for the King's Parkinson's Disease Pain scale; financial support by the IPMDS for attending the IPMDS International Congress 2018; and grant for research from IPMDS for development and validation of the MDS-NMS. Borrué C, Ordás C, Catalán MJ, Nogueira V, González Aramburu I, Cosgaya M, Pastor P, De Deus T, Cores Bartolomé C, Valdés Aymerich L, Muñoz Enríquez JG, and Suárez declare that they have no conflicts of interest., (Copyright © 2021 D. Santos García et al.)