Correlations between impairment, psychological distress, disability, and quality of life in peripheral facial palsy

Introduction: This paper analyses the correlations between scores on scales assessing impairment, psychological distress, disability, and quality of life in patients with peripheral facial palsy (PFP). Material and methods: We conducted a retrospective cross-sectional study including 30 patients in whom PFP had not resolved completely. We used tools for assessing impairment (Sunnybrook Facial Grading System [FGS]), psychological distress (Hospital Anxiety and Depression Scale [HADS]), disability (Facial Disability Index [FDI]), and quality of life (Facial Clinimetric Evaluation [FaCE] scale). Results: We found no correlations between FGS and HADS scores, or between FGS and FDI social function scores. However, we did find a correlation between FGS and FDI physical function scores (r =0.54; P<.01), FDI total score (r=0.4; P<.05), FaCE total scores (rho=0.66; P<.01), and FaCE social function scores (rho =0.5; P<.01). We also observed a correlation between HADS Anxiety scores and FDI physical function (r = -0.47; P<.01), FDI social function (r = -0.47; P<.01), FDI total (r = -0.55; P<.01), FaCE total (rho = -0.49; P<.01), and FaCE social scores (rho = -0.46; P<.05). Significant correlations were also found between HADS Depression scores and FDI physical function (r= -0.61; P<.01), FDI social function (r= -0.53; P<.01), FDI total (r = -0.66; P<.01), FaCE total (rho = -0.67; P<.01), and FaCE social scores (rho = -0.68; P<.01), between FDI physical function scores and FaCE total scores (rho =0.87; P<.01) and FaCE social function (rho = 0.74; P<.01), between FDI social function and FaCE total (rho =0.66; P<.01) and FaCE social function scores (rho = 0.72; P<.01), and between FDI total scores and FaCE total (rho = 0,87; P<.01) and FaCE social function scores (rho = 0.84; P<.01). Conclusion: In our sample, patients with more severe impairment displayed greater physical and global disability and poorer quality of life without significantly higher levels of social disability and psychological distress. Patients with more disability experienced greater psychological distress and had a poorer quality of life. Lastly, patients with more psychological distress also had a poorer quality of life. (C) 2017 Sociedad Espanola de Neurologia. Published by Elsevier Espana, S.L.U.