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Table 1 Baseline Characteristics of the CAREMA Cohort in the Netherlands, 1987-1997

From: Smoking, alcohol consumption, physical activity, and family history and the risks of acute myocardial infarction and unstable angina pectoris: a prospective cohort study

 

Total cohort (n = 19,096)

AMI cases (n = 420)

UAP cases (n = 274)

Demographics

   
 

mean (SD)

mean (SD)

mean (SD)

Age at baseline (years)

40.9 (10.9)

48.8 (7.6)

50.1 (7.0)

Sex

n (%)

n (%)

n (%)

Men

8,956 (46.9)

328 (78.1)

190 (69.3)

Women

10,140 (53.1)

92 (21.9)

84 (30.7)

Baseline cohort

   

PPHVZ (1987-1992)

13,674 (71.6)

366 (87.1)

237 (86.5)

MORGEN (1993-1997)

5,422 (28.4)

54 (12.9)

37 (13.5)

Lifestyle factors

   

Smoking

   

Never

6,598 (34.6)

57 (13.6)

55 (20.1)

Ex

4,960 (26.0)

93 (22.1)

86 (31.4)

Current

7,538 (39.5)

270 (64.3)

133 (48.5)

 

mean (SD)

mean (SD)

mean (SD)

Number of cigarettes/day among current smokers

15.7 (8.8)

18.8 (8.0)

17.4 (7.9)

Number of years of smoking among current smokers

22.7 (10.5)

30.4 (8.8)

30.7 (9.1)

Alcohol consumption

n (%)

n (%)

n (%)

Never

2,391 (12.5)

63 (15.0)

40 (14.6)

Ex-drinker

257 (1.3)

13 (3.1)

7 (2.6)

Occasionally (<1 glass/week)

4,468 (23.4)

77 (18.3)

57 (20.8)

Regular (≥ 1 glasses/week)

11,980 (62.7)

267 (63.6)

170 (62.0)

 

median (5 th - 95 th perc)

median (5 th - 95 th perc)

median (5 th - 95 th perc)

Number of glasses/day among regular drinkers

1.4 (0.3 - 5.0)

1.4 (0.3 - 5.7)

1.4 (0.3 - 6.1)

Occupational activity a

n (%)

n (%)

n (%)

None to light

13,849 (72.5)

304 (72.4)

207 (75.5)

Moderate to heavy

3,327 (17.4)

86 (20.5)

48 (17.5)

Non-occupational activity a

   

None to light

8,264 (43.3)

171 (40.7)

115 (42.0)

Moderate to heavy

10,828 (56.7)

249 (59.3)

159 (58.0)

Family history of premature MI

   

No

15,980 (83.7)

331 (78.8)

216 (78.8)

Yes

3,116 (16.3)

89 (21.2)

58 (21.2)

Confounding/intermediate factors

   

Level of education

   

Primary school/junior vocational education

11,251 (58.9)

316 (75.2)

208 (75.9)

Secondary vocational education

4,398 (23.0)

64 (15.2)

40 (14.6)

Vocational college/university

3,447 (18.1)

40 (9.5)

26 (9.5)

Diabetes mellitus

164 (0.9)

20 (4.8)

7 (2.6)

 

mean (SD)

mean (SD)

mean (SD)

Systolic blood pressure (mmHg)

119.2 (14.3)

128.1 (16.6)

130.3 (17.1)

Total cholesterol (mmol/L)

5.4 (1.1)

6.3 (1.2)

6.3 (1.1)

HDL cholesterol (mmol/L)

1.3 (0.3)

1.0 (0.2)

1.1 (0.3)

Body mass index (kg/m2)

24.7 (3.9)

26.7 (4.0)

26.4 (3.9)

  1. AMI, acute myocardial infarction; MI, myocardial infarction; MORGEN, Monitoring Project on Chronic Disease Risk Factors; n, number; perc, percentile; PPHVZ, Monitoring Project on Cardiovascular Risk Factors; SD, standard deviation; UAP, unstable angina pectoris.
  2. a Numbers may not add up to the total number of subjects because of missing values.