The authors regret that several errors were present in the original publication. Corrections are listed below.
1. In Table 2 of the Results section, a number of discrepancies were found in the values of some of the baseline characteristics of the study population. The corrected table is appended.
Table 2.
Baseline characteristics for both the placebo and wild blueberry treatment groups.
| Placebo group Mean (SD) (N=29) |
WBB group Mean (SD) (N=32) |
|
|---|---|---|
| Gender (M/F) | 11/18 | 13/19 |
| Age | 70.76 (3.80) | 69.44 (3.48) |
| BMI (kg/m2) | 23.09 (2.60) | 25.09 (3.57) |
| Body Fat % | 26.74 (8.18) | 28.8 (8.20) |
| Systolic BP (mmHg) | 128.95 (10.30) | 127.98 (11.37) |
| Diastolic BP (mmHg) | 79.60 (5.59) | 81.03 (7.86) |
| Heart rate (bpm) | 66.97 (8.00) | 64.81 (10.20) |
| HDL cholesterol (mmol/L) | 2.17 (0.81) | 1.79 (0.42) |
| LDL cholesterol (mmol/L) | 3.81 (0.96) | 3.96 (1.21) |
| Fasting glucose (mmol/L) | 4.78 (0.44) | 4.96 (0.58) |
| FMD (%) | 4.07 (1.14) | 3.62 (1.53) |
| PWV (m/s) | 8.84 (3.02) | 8.39 (3.90) |
| AIx @HR75(%) | 29.42 (11.04) | 27.81 (7.11) |
| Blood flow velocity (cm/s) | 53.96 (8.55) | 55.59 (5.90) |
| Pulsatility index (cm/s) | 1.19 (0.29) | 1.04 (0.16) |
2. In Figure 2 (panel F), and in the description of the results section (page 1312), we apologize that an outlier was missed in the analysis. With this outlier removed the corrected TST overall accuracy result remains significant and should be reported as F(1,45)=4.08, p=0.049.
Figure 2.
Differences in vascular and cognitive function of the control group and wild blueberry (WBB)-treated group (n = 27 on each group) at 12 wk following consumption. Flow-mediated dilation (FMD) differences (A) evaluated by linear mixed modeling analysis (<0.001 for an overall WBB treatment effect compared with placebo, adjusted for baseline FMD values as a covariateTotal 24-h (B) systolic blood pressure (SBP) and (C) diastolic blood pressure (DBP) differences following WBB consumption in comparison to placebo. Linear mixed modeling analysis revealed no significance for DBP, and an overall treatment effect in SBP P = 0.037 when compared with the placebo. Baseline blood pressure values were used as a covariate; (D) analysis for mean words recalled for immediate recall (R1) revealed significantly improved performance following WBB consumption in comparison to placebo (P = 0.043). (E) Analysis for mean delayed word recall (R8) revealed a significantly improved performance following placebo consumption relative to WBB (P = 0.029) and (F) analysis for overall TST accuracy scores revealed a significant effect of treatment, with higher overall accuracy for WBB compared with placebo (P = 0.049). AVLT, auditory visual learning task; DBP, diastolic blood pressure; FMD, flow-mediated dilation; SBP, systolic blood pressure; TST, task-switching task; WBB, wild blueberry.
3. Finally, we note that the statistical analyses were performed using a linear marginal model based on the SPSS MIXED procedure with Maximum Likelihood (ML) estimation specified.
The authors apologize for any inconvenience caused and acknowledge the following readers for noticing and helping to correct these errors:
Lijiang Guo, Anna L. M. Macagno, Erik S. Parker, Stephanie L. Dickinson, Colby J.Vorland, Yasaman Jamshidi-Naeini, and David B. Allison, Department of Epidemiology and Biostatistics, Indiana University School of Public Health-Bloomington, IN, USA