Greysen SR, Oon AL, Harkins K et al. Effect of gamificationwith a support partner to increase physical activity in older adults at risk for Alzheimer's disease: The STEP 4Life randomized clinical trial. Alzheimer's Dement. 2024;20(8):5450-5459. https://doi.org/10.1002/alz.14058.

In paragraph 3 of the “Statistical Analysis” section, the equation listed was incorrect. It should have read:

$$Step{s}_{ij}={\beta }_0+{\beta }_{1}Baselinestepcoun{t}_{ij}+{\beta }_{2}Ar{m_{intervention}}_{ij}+{\beta }_{3}Mont{h_{January}}_{ij}+{\beta }_{4}Mont{h_{February}}_{ij}+\cdots +{\beta }_{13}Mont{h_{November}}_{ij}+b_i+{\epsilon }_{ij}$$

where, $Step{s}_{ij}$ refers to recorded for participant $i$ at day $j$, $i=1,\text{…},94,j=1,\text{…},105,b_i\sim N(0,{\sigma }_b^2)$ where $b_i$ refers to the participant random effect, which is the participant-specific random intercept and ${\epsilon }_{ij}\sim N(0,{\sigma }_e^2)$.

We apologize for this error.

中文翻译：

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更正“与支持伙伴进行游戏化对增加有阿尔茨海默病风险的老年人的体力活动的效果：STEP 4Life 随机临床试验”