Table 2 Risk of cognitive impairment by changes in blood pressure across two consecutive visits (3-years interval)

Baseline systolic blood pressure

< 130 mmHg

130–150 mmHg

> = 150 mmHg

 Model1

1.00 (reference)

0.88 (0.72, 1.07)

1.27 (1.02, 1.60)

 Model2

1.00 (reference)

0.94 (0.75, 1.17)

1.20 (0.94, 1.55)

 Model3

1.00 (reference)

0.92 (0.73, 1.14)

1.17 (0.90, 1.50)

 Model1

1.29 (1.05, 1.58)

1.00 (reference)

1.34 (1.05, 1.71)

 Model2

1.28 (1.02, 1.61)

1.00 (reference)

1.44 (1.10, 1.88)

 Model3

1.28 (1.02, 1.61)

1.00 (reference)

1.48 (1.13, 1.93)

 Model1

1.13 (0.83, 1.55)

0.86 (0.63, 1.17)

1.00 (reference)

 Model2

0.93 (0.66, 1.31)

0.79 (0.56, 1.10)

1.00 (reference)

 Model3

0.95 (0.67, 1.34)

0.77 (0.55, 1.08)

1.00 (reference)

Baseline diastolic blood pressure

< 80 mmHg

80–90 mmHg

> = 90 mmHg

 Model1

1.00 (reference)

0.73 (0.59, 0.90)

1.19 (0.91, 1.54)

 Model2

1.00 (reference)

0.71 (0.56, 0.90)

1.18 (0.88, 1.58)

 Model3

1.00 (reference)

0.73 (0.58, 0.93)

1.17 (0.87, 1.58)

 Model1

1.18 (0.96, 1.45)

1.00 (reference)

1.30 (1.00, 1.70)

 Model2

1.04 (0.83, 1.31)

1.00 (reference)

1.49 (1.11, 2.00)

 Model3

1.04 (0.83, 1.31)

1.00 (reference)

1.53 (1.14, 2.05)

 Model1

1.04 (0.78, 1.37)

0.92 (0.68, 1.23)

1.00 (reference)

 Model2

0.83 (0.60, 1.14)

0.82 (0.59, 1.13)

1.00 (reference)

 Model3

0.83 (0.60, 1.15)

0.83 (0.59, 1.15)

1.00 (reference)