Table 3 Improvements in model performance

From: Sleep and cardiovascular outcomes in relation to nocturnal hypertension: the J-HOP Nocturnal Blood Pressure Study

 

ASCVD (stroke + CAD)

Stroke

CAD

C-statistics (95% CI)

p value

C-statistics (95% CI)

p value

C-statistics (95% CI)

p value

Base model

0.757 (0.719−0.794)

–

0.763 (0.718−0.825)

–

0.788 (0.731−0.847)

–

Base model + sleep duration

0.763 (0.727−0.799)

0.202

0.785 (0.736−0.839)

0.110

0.787 (0.729−0.846)

0.815

Base model + nighttime SBP

0.760 (0.724−0.798)

0.366

0.779 (0.719−0.841)

0.195

0.788 (0.731−0.848)

0.943

Base model + sleep duration + nighttime SBP

0.766 (0.726−0.802)

0.137

0.795 (0.737−0.856)

0.038

0.787 (0.730−0.846)

0.826

  1. Base model includes age, sex, body mass index, total cholesterol, high-density lipoprotein cholesterol, smoking, diabetes, history of cardiovascular disease, use of antihypertensive drugs or statin or aspirin, and office systolic blood pressure. p values are for differences compared with the base model
  2. ASCVD atherosclerotic cardiovascular disease, CAD coronary artery disease, CI confidence interval, SBP systolic blood pressure
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