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Table 4 Associations and performance of the AD-related sncRNA signature with AD incidence

From: Exploring small non-coding RNAs as blood-based biomarkers to predict Alzheimer’s disease

Analysis model

HR (95% CI)

P valuea

C-statistic

P valueb

  
    

Model 1

Model 2

Model 3

Model 1

  

0.791 (0.740, 0.842)

   

Model 2

3.896 (2.326, 6.524)

 < 0.001***

0.829 (0.786, 0.872)

 < 0.001***

  

Model 3

3.043 (2.185, 4.239)

 < 0.001***

0.849 (0.808, 0.890)

 < 0.001***

  

Model 4

2.853 (2.020, 4.029)

 < 0.001***

0.875 (0.840, 0.910)

 < 0.001***

 < 0.001***

 < 0.001***

  1. Model 1 included age, sex, BMI, APOE ε4, smoking status, education, use of anxiolytic or antidepressants, antihypertensive drugs, statins, and other lipid-lowering medication and MMSE score; Model 2 included ATN status plus the conventional risk factors included in Model 1; Model 3 included the AD-related sncRNA signature plus the conventional risk factors included in Model 2; Model 4 included the AD-related sncRNA signature plus the conventional risk factors included in Model 2 and ATN status. Exposure contrast is per z-score increase in the sncRNA signature. *P value < 0.05, **P value < 0.01, ***P value < 0.001
  2. AD Alzheimer’s disease, HR hazard ratio, BMI Body mass index, MMSE mini-mental state examination.
  3. aP value for the hazard rati
  4. bP value for the likelihood-ratio test