Table 2 Multivariable logistic regression analyses of the association between AIP and prehypertension and hypertension

Prehypertension

  AIP

1.80 (1.72–1.89)

< 0.001

1.44 (1.37–1.52)

< 0.001

1.49 (1.41–1.57)

< 0.001

1.08 (1.01–1.14)

0.017

  Q1(≤—0.37)

Ref

Ref

Ref

Ref

   Q2(-0.37–0.15)

1.48 (1.32–1.66)

< 0.001

1.23 (1.09–1.38)

0.001

1.24 (1.10–1.40)

< 0.001

1.04 (0.92–1.17)

0.508

  Q3(0.15–0.73)

2.35 (2.11–2.62)

< 0.001

1.64 (1.46–1.85)

< 0.001

1.71 (1.52–1.92)

< 0.001

1.20 (1.06–1.35)

0.004

  Q4(≥ 0.73)

3.40 (3.05–3.78)

< 0.001

2.09 (1.86–2.35)

< 0.001

2.21 (1.96–2.49)

< 0.001

1.15 (1.00–1.31)

0.045

   P for trend

1.51 (1.46–1.56)

< 0.001

1.29 (1.24–1.33)

< 0.001

1.31 (1.26–1.36)

< 0.001

1.06 (1.01–1.10)

0.013

Hypertension

 AIP

2.22 (2.04–2.41)

< 0.001

1.83 (1.67–2.00)

< 0.001

1.92 (1.74–2.10)

< 0.001

1.22 (1.09–1.36)

< 0.001

  Q1(≤—0.37)

Ref

Ref

Ref

Ref

  Q2(-0.37–0.15)

1.98 (1.50–2.60)

< 0.001

1.57 (1.19–2.08)

0.001

1.60 (1.21–2.11)

0.001

1.19 (0.90–1.59)

0.228

  Q3(0.15–0.73)

3.70 (2.87–4.77)

< 0.001

2.44 (1.87–3.17)

< 0.001

2.59 (1.99–3.37)

< 0.001

1.49 (1.13–1.95)

0.004

  Q4(≥ 0.73)

6.36 (4.98–8.11)

< 0.001

3.79 (2.92–4.92)

< 0.001

4.12 (3.17–5.35)

< 0.001

1.54 (1.16–2.04)

0.003

  P for trend

1.83 (1.71–1.95)

< 0.001

1.56 (1.45–1.67)

< 0.001

1.60 (1.49–1.73)

< 0.001

1.15 (1.05–1.24)

< 0.001