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Fig. 1 | BMC Neurology

Fig. 1

From: Prevalence and profile of nocturnal disturbances in Chinese patients with advanced-stage Parkinson’s disease: a cross-sectional epidemiology study

Fig. 1

Mean PDSS-2 total and subscale scores (a) and regression analysis (b) for patients with advanced-stage PD with and without ND (all analysis set). For part a, statistical analysis was not performed for the PDSS-2 total score. For part b, the estimated regression coefficient for age, H&Y stage (Stage II = 1, Stage IIS = 2, Stage III = 3, Stage IV = 4) and disease duration are calculated to compare the pairwise difference in 1 higher unit change. The estimated regression coefficient of sex is calculated with male as the reference level; *p < 0.001. CI, confidence interval; H&Y, Modified Hoehn & Yahr; ND, nocturnal disturbance; PDSS-2, Parkinson’s Disease Sleep Scale 2nd version; PD, Parkinson’s disease; SEM, standard error of the mean

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BMC Neurology

ISSN: 1471-2377

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