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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: Exp Gerontol. 2016 Nov 15;87(Pt A):129–136. doi: 10.1016/j.exger.2016.11.001

Figure 2.

Figure 2

Box plot of percent (%) change in serum levels of BDNF from baseline values, after 6 months of exercise training (a) between exercise groups, (b) between genders, (c) between non-ε4 and ε4 carriers and (d) between non-ε4 and ε4 carriers only within the aerobic exercise group. Middle line in box represents the median; lower box bounds the first quartile; upper box bounds the 3rd quartile. Whiskers represent the 95% confidence interval of the mean. Open circles are outliers from 95% confidence interval. *Significant difference between groups (P=0.016 and P=0.021 for C and D respectively). Non-ε4 = non carriers of the APOE ε 4 allele, ε4 = carrier of the APOEε4 allele.