Table 4 Proportional risks of death, hypertensive vs. non-hypertensive patients by age groups and causes (use of multistate models, Figs. 1a and b). Models adjusted for age, sex, diabetes mellitus, smoking and socioeconomic status of the area

Mortality due to kidney or cardiovascular causes

Age group

HR

IC 95% HR

p value

 18 to 44 years

9.309

3.819–22.694

 < 0.001

 45 to 54 years

1.787

1.280–2.493

0.001

 55 to 64 years

1.045

0.855–1.278

0.665

 65 to 74 years

0.959

0.828–1.111

0.578

 75 to 84 years

0.900

0.811–0.999

0.049

 85 and older

1.132

0.976–1.313

0.102

Characteristics of the model

Akaike Information Criteria (AIC): 75,448.71

Bayes Information Criteria (BIC): 75,628.22

Mortality due to other causes

Age group

HR

IC 95% HR

p value

 18 to 44 years

2.044

1.557–2.683

 < 0.001

 45 to 54 years

1.082

0.959–1.222

0.200

 55 to 64 years

0.870

0.801–0.945

 < 0.001

 65 to 74 years

0.814

0.757–0.875

 < 0.001

 75 to 84 years

0.750

0.701–0.802

 < 0.001

 85 and older

0.987

0.881–1.106

0.818

Characteristics of the model

Akaike Information Criteria (AIC): 280,556.7

Bayes Information Criteria (BIC): 280,736.2

Total mortality

Age group

HR

IC 95% HR

p value

 18 to 44 years

2.466

1.905–3.193

 < 0.001

 45 to 54 years

1.154

1.028–1.295

0.016

 55 to 64 years

0.891

0.827–0.960

0.003

 65 to 74 years

0.837

0.783–0.895

 < 0.001

 75 to 84 years

0.785

0.740–0.833

 < 0.001

 85 and older

1.031

0.938–1.134

0.522

Characteristics of the model

Akaike Information Criteria (AIC): 356,480.7

Bayes Information Criteria (BIC): 356,660.2