Ires Ghielen

94 Chapter 5 30. Leentjens, A.F.G., et al., Anxiety Rating Scales in Parkinson’s Disease: A Validation Study of the Hamilton Anxiety Rating Scale, the Beck Anxiety Inventory, and the Hospital Anxiety and Depression Scale. Movement Disorders, 2011. 26 (3): p. 407- 415. 31. Goldstein, H., W. Browne, and J. Rasbash, Multilevel modelling of medical data. Statistics in Medicine, 2002. 21 (21): p. 3291-3315. 32. Twisk, J., et al., Multiple imputation of missing values was not necessary before performing a longitudinal mixed-model analysis. Journal of Clinical Epidemiology, 2013. 66 (9): p. 1022-1028. 33. Gillies, G.E., et al., Sex differences in Parkinson’s disease. Frontiers in Neuroendocrinology, 2014. 35 (3): p. 370-384. 34. Haaxma, C.A., et al., Gender differences in Parkinson’s disease. Journal of Neurology Neurosurgery and Psychiatry, 2007. 78 (8): p. 819-824. 35. McLean, C.P., et al., Gender differences in anxiety disorders: Prevalence, course of illness, comorbidity and burden of illness. Journal of Psychiatric Research, 2011. 45 (8): p. 1027-1035. 36. Jankovic, J., et al., Variable Expression of Parkinsons-Disease - a Base-Line Analysis of the Datatop Cohort. Neurology, 1990. 40 (10): p. 1529-1534. 37. Gunstad, J., et al., Elevated body mass index is associated with executive dysfunction in otherwise healthy adults. Comprehensive Psychiatry, 2007. 48 (1): p. 57-61. 38. Noyce, A.J., et al., Estimating the causal influence of body mass index on risk of Parkinson disease: A Mendelian randomisation study. Plos Medicine, 2017. 14 (6). 39. van der Marck, M.A., et al., Body mass index in Parkinson’s disease: A meta- analysis. Parkinsonism & Related Disorders, 2012. 18 (3): p. 263-267. 40. Volkow, N.D., et al., Inverse Association Between BMI and Prefrontal Metabolic Activity in Healthy Adults. Obesity, 2009. 17 (1): p. 60-65. 41. Stebbins, G.T. and C.G. Goetz, Factor structure of the Unified Parkinson’s Disease Rating Scale: Motor Examination section. Movement Disorders, 1998. 13 (4): p. 633-636. 42. Lewis, S.J.G. and R.A. Barker, A pathophysiological model of freezing of gait in Parkinson’s disease. Parkinsonism & Related Disorders, 2009. 15 (5): p. 333-338. 43. Giladi, N. and J.M. Hausdorff, The role of mental function in the pathogenesis of freezing of gait in Parkinson’s disease. Journal of the Neurological Sciences, 2006. 248 (1-2): p. 173-176. 44. Bohnen, N.I., et al., Gait speed in Parkinson disease correlates with cholinergic degeneration. Neurology, 2013. 81 (18): p. 1611-1616. 45. Horak, F.B., et al., Balance and Gait Represent Independent Domains of Mobility in Parkinson Disease. Physical Therapy, 2016. 96 (9): p. 1364-1371.

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