Table 3 The interactive effects of HGI with obesity, family history of hypertension on risk of hypertension

HGI^a

Family history of hypertension

1.36 (0.11–2.63)^c

0.43 (0.17–0.69)^c

2.68 (1.10–6.48)^c

 Low

No

1 (ref)

 Low

Yes

1.32 (0.90–1.93)

 High

No

1.50 (1.08–2.09)

 High

Yes

3.18 (2.05–4.94)

HGI^a

General obesity

0.75 (− 0.05–1.54)^d

0.28 (0.01–0.54)^c

1.78 (0.85–3.74)^d

 Low

No

1 (ref)

 Low

Yes

1.38 (0.96–1.99)

 High

No

1.57 (1.05–2.34)

 High

Yes

2.70 (1.83–3.98)

HGI^a

Abdominal obesity

1.04 (0.24–1.85)^c

0.33 (0.11–0.56)^c

1.96 (1.01–3.79)^c

 Low

No

1 (ref)

 Low

Yes

1.39 (1.01–1.92)

 High

No

1.71 (1.19–2.45)

 High

Yes

3.14 (2.30–4.28)