Variable

Number with data

OR (95% CI)

p-value

Taken forward to next stage

Independent associations, each risk factor included separately

Age

6378

1.04 (1.03 to 1.04)

<0.0001

Sex

6378

1.12 (0.99 to 1.26)

0.05

BMI

6157

1.08 (1.07 to 1.10)

<0.0001

Ethnicity

6175

1.67 (1.45 to 1.91)

<0.0001

Family history

6378

1.29 (1.14 to 1.46)

<0.0001

Smoking status

6141

0.71 (0.58 to 0.86)

<0.0001

Antihypertensives

6378

1.99 (1.75 to 2.27)

<0.0001

Statins

6378

1.76 (1.49 to 2.09)

<0.0001

Steroids

6378

1.16 (0.89 to 1.50)

0.28

History of CVD

6378

1.28 (1.08 to 1.52)

0.004

Deprivation

6125

1.01 (1.00 to 1.01)

<0.0001

All significant risk factors from phase one included in one model

Age

5867

1.04 (1.03 to 1.05)

<0.0001

Sex

5867

1.21 (1.05 to 1.39)

0.01

BMI

5867

1.08 (1.07 to 1.10)

<0.0001

Ethnicity

5867

2.01 (1.70 to 2.38)

<0.0001

Family history

5867

1.66 (1.44 to 1.91)

<0.0001

Smoking status

5867

0.94 (0.76 to 1.16)

0.55

Antihypertensives

5867

1.67 (1.42 to 1.96)

<0.0001

Statins

5867

1.32 (1.06 to 1.63)

0.01

History of CVD

5867

0.84 (0.68 to 1.03)

0.1

Deprivation

5867

1.00 (1.00 to 1.01)

0.08

All significant risk factors from phase two included in one model

Age

6143

1.04 (1.03 to 1.05)

<0.0001

Sex

6143

1.19 (1.04 to 1.36)

0.01

BMI

6143

1.09 (1.07 to 1.10)

<0.0001

Ethnicity

6143

2.13 (1.82 to 2.48)

<0.0001

Family history

6143

1.61 (1.40 to 1.85)

<0.0001

Antihypertensives

6143

1.65 (1.41 to 1.93)

<0.0001

Statins

6143

1.19 (0.98 to 1.45)

0.08

Score now includes age, sex, BMI, ethnicity, family history and antihypertensives (next stage: adding the excluded variables one by one to see if they are now important when adjusted for other factors in the model)

Steroids

6143

1.08 (0.82 to 1.43)

0.57

Smoking status

6099

0.93 (0.76 to 1.15)

0.52

History of CVD

6143

0.91 (0.75 to 1.11)

0.36

Deprivation

5911

1.00 (1.00 to 1.00)

0.09

OR, odds ratio.