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. 2018 Jul 27;4(4):e246. doi: 10.1212/NXG.0000000000000246

Figure 1. ROC curve of ASFMR1-TV2.

Figure 1

(A and B) ROC analysis indicated that ASFMR1-TV2 has a good discriminating power of FXTAS when comparing FXTAS with PMC and normal in men (A: AUC = 0.80; 95% CI = 0.68, 0.92) and women (B: AUC = 0.80; 95% CI = 0.67, 0.9). (C and D) ROC analysis indicated that ASFMR1-TV2 did not have a good discriminating power when comparing FXTAS with PMC in both men (C) and women (D) (men: AUC = 0.53, 95% CI = 0.32, 0.74; women: AUC = 0.69, 95% CI = 0.53, 0.85). (E and F) ROC analysis indicated that ASFMR1-TV2 has a good discriminating power when comparing PMC without FXTAS with normal in both men (E) and women (F) (men: AUC = 0.95, 95% CI = 0.86, 1; women: AUC = 0.92, 95% CI = 0.85, 0.99). (A–F) The green line is the diagonal reference line, and the blue line is the empirical ROC curve comparing FXTAS with NCs and premutation carriers (A and B), FXTAS with PMC (C and D), and PMC without FXTAS with controls (E and F) (The closer the ROC curve gets to the reference line, the worse the test. A large value of the AUC indicates a good test. An area of 1 means a perfect test, and 0.5 represents a worthless test). AUC = area under the curve; ASFMR1-TV2 = antisense fragile-X mental retardation-transcript variant 2; CI = confidence interval; FXTAS = fragile X-associated tremor/ataxia syndrome; NC = normal control; PMC = premutation carrier; ROC = receiver operating characteristic.