Table 2 Subgroup analyses of the association between prehypertension and cardiovascular morbidity

Blood pressure range

 Low-range prehypertension

1.46 (1.32, 1.62)

0.02

 High-range prehypertension

1.63 (1.47, 1.80)

Gender

 Men

1.80 (1.44, 2.24)

0.11

 Women

1.46 (1.28, 1.67)

Race/ethnicity

 Asian

1.54 (1.34, 1.77)

0.96

 Non-Asian

1.55 (1.36, 1.77)

Participant’s average age

 <55 years

1.55 (1.31, 1.84)

0.72

 ≥55 years

1.50 (1.35, 1.67)

Follow-up duration

 <10 years

1.45 (1.27, 1.67)

0.21

 ≥10 years)

1.63 (1.45, 1.84)

Participant number

 <10,000

1.59 (1.38, 1.84)

0.52

 ≥10,000

1.49 (1.28, 1.73)

Study quality

 Good (score 7 to 8)

1.54 (1.37, 1.73)

1

 Fair (score 4 to 6)

1.54 (1.21, 1.96)