Box Plot from Scientific Research

The CSF STA and t-tau ratio levels decreased with increasing Braak staging. The lowest levels were in those with the most advanced ADNC (Braak stages V and VI, n = 40), being significantly different from both the Braak III and IV ( n = 13) and 0II ( n = 14) groups. As above, the center of the box plot indicates the median, the box boundaries indicate the 25th and 75th percentiles, and the whiskers indicate the furthest value 1.5 times the IQR. The P values correspond to post hoc pairwise MannWhitney U-tests with FDR adjustment, after a significant overall KruskalWallis rank-sum test (chi-squared = 18.7, d.f. = 2, P = 8.5 10 -5 ).

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