Table 1

Baseline and follow-up characteristics of study sample

Higher SES

Lower SES


Mean (SD)

N

Mean (SD)

N


    Baseline


Age (years)

53.3 (5.6)

8824

55.2 (5.7)

3315


Male

44.9%

8824

40.7%

3315


Framingham risk score

5.8 (6.0)

8824

7.0 (6.6)

3315


Total cholesterol (mg/dL)

212.3 (40.1)

8824

216.4 (43.7)

3315


HDL cholesterol mg/dL)

52.7 (17.0)

8824

52.9 (17.2)

3315


Systolic blood pressure (mm Hg)

118.0 (16.9)

8824

125.2 (20.0)

3315


Current smoker

22.9%

8824

34.9%

3315


Anti-hypertensive medication

17.8%

8785

28.8%

3300


3-year follow-up


Total cholesterol

(mg/dL)

207.8 (37.8)

8451

211.0 (40.3)

2928


HDL cholesterol

(mg/dL)

50.5 (16.8)

8424

50.3 (16.8)

2922


Systolic blood pressure (mm Hg)

119.2 (17.5)

8483

125.1 (20.2)

2945


Current smoker

19.8%

8467

29.6%

2932


Anti-hypertensive medication

20.4%

8457

31.9%

2928


6-year follow-up


Total cholesterol (mg/dL)

206.6 (36.4)

7844

208.8 (39.4)

2500


HDL cholesterol (mg/dL)

53.1 (18.3)

7843

52.1 (17.8)

2500


Systolic blood pressure (mm Hg)

122.2 (17.8)

7869

128.7 (20.5)

2515


Current smoker

15.9%

7848

23.5%

2494


Anti-hypertensive medication

25.6%

7834

37.4%

2498


9-year follow-up


Total cholesterol (mg/dL)

200.7 (35.9)

6974

202.1 (38.8)

1990


HDL cholesterol (mg/dL)

50.6 (16.6)

6974

49.4 (16.1)

1990


Systolic blood pressure (mm Hg)

125.3 (18.1)

6994

130.6 (19.5)

2001


Current smoker

13.0%

6969

19.5%

1991


Anti-hy2ertensive medication

30.5%

6965

42.3%

1988


Notes: SES = socio-economic status; SD = standard deviation; HDL = high density lipoprotein.

Franks et al. BMC Cardiovascular Disorders 2011 11:28   doi:10.1186/1471-2261-11-28

Open Data