In the article by Tian et al. (“Chinese herbal medicine Qinggongshoutao for the treatment of amnestic mild cognitive impairment: A 52‐week randomized controlled trial.” Alzheimer's & Dementia: Translational Research & Clinical Interventions, 5: 441‐449. https://doi.org/10.1016/j.trci.2019.03.001), errors occurred in the preparation of the paper for publication, requiring the following corrections.
In Table 2 the least‐squares means and standard errors were incorrectly reported as being identical for ADCS‐ADL‐MCI‐24, Alzheimer's Disease Cooperative Study–Activities of Daily Living for mild cognitive impairment‐24 items and AMIPB‐DSR, Adult Memory and Information Processing Battery‐Logical Memory Delayed Story Recall within each treatment group and in both analysis groups (FAS, full‐analysis set and PPS, per‐protocol set). In addition, in the PPS results of ADCS‐ADL‐MCI‐24, the result of the placebo group was presented as 1.33 rather than −1.33.
A corrected Table 2 appears below.
TABLE 2.
Primary and secondary outcomes at week 52 in groups
| Week 52 (FAS) | Week 52 (PPS) | |||||||
|---|---|---|---|---|---|---|---|---|
| Scale | QGST (n = 174) | EGb761 (n = 104) | Placebo (n = 70) | P* | QGST (n = 165) | EGb761 (n = 98) | Placebo (n = 69) | P* |
| ADAS‐cog | 2.76 (0.26) | 2.43 (0.33) | −1.25 (0.40) | <.001 | 2.66 (0.26) | 2.45 (0.34) | −1.22 (0.40) | <.001 |
| CDR‐GS > 1, n (%) | 2 (1.15) | 1 (0.96) | 7 (10.00) | .002 | 2 (1.22) | 1 (1.03) | 7 (10.14) | .002 |
| CDR‐SB | 0.22 (0.10) | 0.25 (0.13) | −0.02 (0.16) | .064 | 0.20 (0.16) | 0.29 (0.13) | −0.01 (0.16) | .057 |
| MMSE | −0.92 (0.14) | −0.86 (0.18) | 0.25 (0.22) | <.001 | −0.94 (0.14) | −0.88 (0.19) | 0.26 (0.22) | <.001 |
| ADCS‐ADL‐MCI‐24 | −3.02 (0.39) | −2.98 (0.51) | −1.35 (0.61) | .051 | −2.96 (0.40) | −2.97 (0.52) | −1.33 (0.61) | .053 |
| AMIPB‐DSR | −7.00 (0.44) | −6.13 (0.57) | −4.96 (0.68) | .196 | −6.89 (0.44) | −6.12 (0.57) | −4.95 (0.68) | .265 |
| CGIC‐KDS | 0.57 (0.08) | 0.26 (0.11) | −0.03 (0.14) | .001 | 0.56 (0.08) | 0.28 (0.12) | −0.02 (0.12) | <.001 |
NOTE. * indicates comparison between the three treatment groups. Values are in least squares mean (SE), unless otherwise specified.
Abbreviations: MMSE, Mini–Mental State Examination; ADAS‐cog, Alzheimer's Disease Assessment Scale–cognitive subscale; CDR‐SB, Clinical Dementia Rating Scale–sum of boxes; CDR‐GS, Clinical Dementia Rating Scale‐global score; AMIPB‐DSR, Adult Memory and Information Processing Battery‐Logical Memory Delayed Story Recall; ADCS‐ADL‐MCI‐24, Alzheimer's Disease Cooperative Study–Activities of Daily Living for mild cognitive impairment‐24 items; CGIC‐KDS, Clinical Global Impression of Change of Kidney deficiency; QGST, Qinggongshoutao; EGb761, Ginkgo biloba extract; FAS, full‐analysis set; PPS, per‐protocol set; SE, standard error.
The authors regret these errors.