Table 2 Characteristics associated with prehypertension

 Female

ref

ref

ref

ref

 Male

1.245(±0.0017)

<  0.001

1.229 (±0.0023)

<  0.001

 factor(Age group) 18–25

ref

ref

ref

ref

 factor(Age group) 26–35

1.516(±0.015)

<  0.001

1.411(±0.0019)

<  0.001

 factor(Age group) 36–45

1.661(±0.016)

<  0.001

1.523(±0.0015)

<  0.001

 factor(Age group) 46–55

1.624(±0.016)

<  0.001

1.611(±0.0017)

<  0.001

 factor(Age group) 56–65

1.575(±0.015)

<  0.001

1.521(±0.0017)

<  0.001

 factor(Age group) 65+

1.483(±0.015)

<  0.001

1.480(±0.0017)

<  0.001

 urban

ref

ref

ref

ref

 rural

1.645(±0.018)

<  0.001

1.599 (±0.023)

<  0.001