The explaining effect of diurnal slope (n = 62) on the associations between depressive symptoms and cognitive performance (only beta's presented).

For all measures: Beta's are corrected for age, gender, education and IQ.Higher values indicate worse performance.95%CI: 95% confidence interval.†Regression coefficients (beta's) indicating the mean change in cognitive performance, associated with an increase of 13 points IDS-SR score.£Regression coefficients (beta's), after inclusion of diurnal slope in the model.Diurnal = diurnal slope; Speed = psychomotor speed; Process = speed of information processing; Attention = attentional switching; Mean = mean z-score of all 6 cognitive domains; % change = difference score divided by startvalue †; 95%CI = 95% confidence interval.针对所有测量指标：β系数（Beta's）均已针对年龄、性别、受教育程度及智商进行校正。数值越高则认知表现越差。95%CI：95%置信区间（95% confidence interval）。†回归系数（Beta's）：代表IDS-SR量表得分每升高13分时，对应的认知表现平均变化量。£回归系数（Beta's）：指将昼夜节律斜率纳入回归模型后得到的系数。其中：缩写Diurnal对应昼夜节律斜率（diurnal slope）；Speed对应精神运动速度（psychomotor speed）；Process对应信息处理速度（speed of information processing）；Attention对应注意转换能力（attentional switching）；Mean代表全部6个认知领域的平均z分数；% change指差值得分除以初始值（即采用†标注的计算方式）；95%CI即95%置信区间（95% confidence interval）。