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Table 1 Baseline characteristics of the Framingham Heart Study population in exam 4, exam 11/12, exam 19/20 and in the pooled dataset

From: Living healthier for longer: Comparative effects of three heart-healthy behaviors on life expectancy with and without cardiovascular disease

 

Exam 4

Exam 11/12

Exam 19/20

Pooled

Characteristics

N = 4209

N = 3446

N = 1946

N = 9304*

Age, mean (SD), y

50.5(8.2)

63.7 (7.9)

74.9 (6.3)

59.6(12.1)

Women, No. (%)

2346 (56)

1990 (58)

1004 (61)

5340 (57)

Marital status, No. (%)a

    

   Single

366 (9)

244 (7)

121 (7)

731 (8)

   Married

3589 (85)

2449 (73)

945 (57)

6983 (76)

   Widowed

167 (4)

564 (17)

534 (32)

1265 (14)

   Divorced/Separated

87 (2)

93 (3)

49 (3)

229 (2)

Education, No. (%)b

    

   8th grade or less

1178 (29)

847 (25)

339 (21)

2364 (26)

   Higher than 8th grade

2942 (71)

2500 (75)

1264 (79)

6706 (74)

Pa level, No. (%)

    

   Low

1294 (31)

979 (28)

446 (27)

2719 (29)

   Moderate

1611 (38)

1155 (34)

426 (26)

3192 (34)

   High

1017 (24)

1121 (33)

734 (45)

2872 (31)

   Missing

287 (7)

191 (6)

43 (3)

521 (6)

Smoking Status, No. (%)

    

   Never smoker

1521 (36)

1176 (34)

604 (37)

3301 (35)

   Former smoker

466 (11)

1055 (31)

807 (49)

2328 (25)

   Current smoker

2222 (53)

1215 (35)

238 (14)

3675 (39)

Any co-morbidity†, No. (%)

1351 (32)

1471 (43)

1190 (72)

4012 (43)

BMI‡, mean (SD), kg/m2

25.9 (4.1)

26.1 (4.2)

26.4 (4.5)

26.1 (4.2)

SBP, mean (SD), mmHg

133.9 (22.9)

141.3 (22.2)

143.7 (22.1)

138.3 (22.7)

DBP, mean (SD), mmHg

83.7 (12.2)

97.2 (29.8)

75.9 (10.9)

87.3 (22.0)

  1. Abbreviations: Pa, Physical activity; BMI, Body Mass Index; SBP, Systolic Blood Pressure; DBP, Diastolic Blood Pressure.
  2. *Pooled observation intervals of 4634 subjects alive and with no missing data on baseline chronic diseases and on smoking, hypertension and BMI.
  3. † Any co-morbidity: cancer (n = 447 in pooled population, diabetes mellitus (n = 536), left ventricular hypertrophy (n=536), arthritis (n=2088), ankle edema (n=1168) or pulmonary disease (n = 755)
  4. ‡ Body Mass Index, calculated as BMI = weight in kg/height2 in m2
  5. aBased on: 4109 (exam 4), 3350 (exam 11/12), 1649 (exam 19/200) and 9208 subjects (pooled dataset).
  6. bBased on: 4120 (exam 4), 3347 (exam 11/12), 1600 (exam 19/200) and 9070 subjects (pooled dataset).