Table 2 Relationship between AIP and baPWV in different modle

Per 1 unit increase

1.07 (0.71, 1.43)

1.34 (0.96, 1.72)

Quartiles

 Q1 (≥ − 0.87, < − 0.20)

Ref

Ref

 Q2 (≥ − 0.20, < − 0.01)

0.13 (− 0.15, 0.41)

0.33 (0.08, 0.58)

 Q3 (≥ − 0.01, < 0.18)

0.38 (0.10, 0.66)

0.70 (0.43, 0.97)

 Q4 (≥ 0.18, ≤ 0.94)

0.66 (0.37, 0.94)

0.85 (0.56, 1.14)

P for trend

< 0.001

< 0.001