Figure 1. Cutoff number of turns during sleep in patients with Parkinson’s disease and its related disorders. This study included 33 patients with Parkinson’s disease and its related disorders and 57 healthy participants. The area under the curve was 0.986 (95% confidence interval, 0.969-1.000). The cutoff value was 6.0 (sensitivity, 93.9%; specificity, 96.5%).
Figure 2. Sex-specific cutoff number of turns during sleep in patients with Parkinson’s disease and its related disorders. For men, the area under the curve was 1.0 (95% confidence interval, 1.0-1.0) and the cutoff value was 9.0 (sensitivity, 100%; specificity, 100%). For women, the area under the curve was 0.981 (95% confidence interval, 0.955-1.0) and the cutoff value was 6.0 (sensitivity, 94.7%; specificity, 95.2%).