Table 3 Hazards ratios (95% CIs) for the occurrence of abdominal aortic aneurysm (Multivariate model and final model).

From: Development and validation of a risk prediction model for abdominal aortic aneurysm: a nationwide population-based cohort study

  

N

Event

Duration

Rate

Multivariate model

P-value

Final model

P-value

Age

20–39

852,684

233

8,772,934.9

0.03

1 (Ref.)

< 0.001

1 (Ref.)

< 0.001

40–64

1,543,324

3,033

15,764,115.73

0.19

6.919 (6.04–7.91)

 

6.937 (6.06–7.93)

 

65≤

359,965

3,248

3,337,159.96

0.97

30.328 (26.38–34.85)

 

30.428 (26.47–34.96)

 

Sex

Male

1,503,768

4,422

15,111,342.75

0.29

2.014 (1.87–2.15)

< 0.001

2.013 (1.87–2.15)

< 0.001

Female

1,252,205

2,092

12,762,867.84

0.16

1 (Ref.)

 

1 (Ref.)

 

Income level (1st quartile)

No

2,218,790

5,208

22,459,933.36

0.23

1 (Ref.)

0.12

  

Yes

537,183

1,306

5,414,277.23

0.24

1.048 (0.98–1.11)

   

Obesity (BMI > 25)

Yes

1,856,668

3,932

18,758,964.92

0.21

1 (Ref.)

0.029

1 (Ref.)

0.03

No

899,305

2,582

9,115,245.68

0.28

1.058 (1.00–1.11)

 

1.058 (1.00–1.11)

 

Smoking

Never

1,643,983

3,105

16,686,049.9

0.19

1 (Ref.)

< 0.001

1 (Ref.)

< 0.001

Former

394,698

1,326

3,967,496.03

0.33

1.442 (1.33–1.55)

 

1.442 (1.33–1.55)

 

Current

717,292

2,083

7,220,664.67

0.29

2.193 (2.04–2.35)

 

2.195 (2.04–2.35)

 

Drinking

No

1,425,085

4,005

14,356,278.92

0.28

1 (Ref.)

< 0.001

1 (Ref.)

< 0.001

Yes

1,330,888

2,509

13,517,931.67

0.19

0.662 (0.62–0.70)

 

0.662 (0.62–0.70)

 

Exercise

No

2,260,868

5,141

22,855,563.58

0.22

1 (Ref.)

0.74

  

Yes

495,105

1,373

5,018,647.02

0.27

1.01 (0.95–1.07)

   

Diabetes mellitus (3 levels)

Normal

1,887,289

3,898

19,209,840.47

0.20

1 (Ref.)

< 0.001

1 (Ref.)

< 0.001

Impaired fasting glucose

629,631

1,803

6,347,986.4

0.28

0.919 (0.86–0.97)

 

0.919 (0.86–0.97)

 

Diabetes mellitus

239,053

813

2,316,383.73

0.35

0.637 (0.58–0.68)

 

0.637 (0.58–0.68)

 

Hypertension (3 levels)

Normal

952,127

1,015

9,744,813.14

0.10

1 (Ref.)

< 0.001

1 (Ref.)

< 0.001

Pre-hypertension

1,102,818

1,875

11,215,353.96

0.17

1.204 (1.11–1.3)

 

1.204 (1.11–1.30)

 

Hypertension

701,028

3,624

6,914,043.5

0.52

2.036 (1.88–2.19)

 

2.038 (1.89–2.19)

 

Total cholesterol

< 200

1,483,193

2,556

15,011,409.06

0.17

1 (Ref.)

< 0.001

1 (Ref.)

< 0.001

200–239

794,015

1,828

8,056,784.65

0.23

1.136 (1.06–1.20)

 

1.136 (1.06–1.20)

 

240≤

478,765

2,130

4,806,016.88

0.44

1.561 (1.47–1.65)

 

1.56 (1.46–1.65)

 

Chronic kidney disease

No

2,564,951

5,516

26,006,659.17

0.21

1 (Ref.)

< 0.001

1 (Ref.)

< 0.001

Yes

191,022

998

1,867,551.43

0.53

1.408 (1.31–1.50)

 

1.406 (1.31–1.50)

 

Cardiocerebrovascular disease

No

2,704,125

6,024

27,392,872.21

0.22

1 (Ref.)

< 0.001

1 (Ref.)

< 0.001

Yes

51,848

490

481,338.38

1.02

1.505 (1.36–1.65)

 

1.504 (1.36–1.65)

 
  1. Note: Rate: incidence rate per 1 000 person-years.
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