Table 1

General characteristics of study subjects at baseline (2002/2003) by sex

MenWomen
n (%)n (%)
Total34 20533 014
Age (years)
 60–6927 910 (81.6)26 797 (81.2)
 70–796295 (18.4)6217 (18.8)
Income
 Low6793 (19.9)6692 (20.3)
 Medium14 229 (41.6)13 205 (40.0)
 High13 183 (38.5)13 117 (39.7)
Smoking status
 Never smoked18 862 (55.1)31 708 (96.0)
 Past smoker4920 (14.4)286 (0.9)
 Current smoker10 423 (30.5)1020 (3.1)
Drinking status
 None15 852 (46.3)29 808 (90.3)
 <2 times per week10 733 (31.4)2749 (8.3)
 ≥3 times per week7620 (22.3)457 (1.4)
Physical activity
 None19 142 (56.0)23 894 (72.4)
 <2 times per week6716 (19.6)3979 (12.1)
 ≥3 times per week8347 (24.4)5141 (15.6)
Total cholesterol
 Optimal19 659 (57.5)13 456 (40.8)
 Intermediate10 558 (30.9)12 693 (38.5)
 High3988 (11.7)6865 (20.8)
Hypertension
 No21 465 (62.7)18 863 (57.1)
 Yes12 747 (37.3)14 151 (42.9)
Atrial fibrillation
 No33 657 (98.4)32 654 (98.9)
 Yes548 (1.6)360 (1.1)
Congestive heart failure
 No32 824 (96.0)30 878 (93.5)
 Yes1381 (4.0)2136 (6.5)
DM diagnosis and FBS*
 No DM diagnosis and normal/pre-diabetic FBS28 090 (82.1)27 200 (82.4)
 No DM diagnosis and diabetic FBS2393 (7.0)1762 (5.3)
 DM diagnosis and normal/pre-diabetic FBS2354 (6.9)2696 (8.2)
 DM diagnosis and diabetic FBS1368 (4.0)1356 (4.1)
BMI
 <18.5 kg/m2 1311 (3.8)874 (2.7)
 18.5–23 kg/m2 13 482 (39.4)10 403 (31.5)
 23–25 kg/m2 9530 (27.9)8452 (25.6)
 25–30 kg/m2 9413 (27.5)11 959 (36.2)
 ≥30 kg/m2 476 (1.4)1326 (4.0)
BMI change over 2 years †
 Decrease of >10%990 (2.9)1340 (4.1)
 Decrease of 5<−10%4006 (11.7)4342 (13.2)
 Stable at ±5%24 934 (72.9)22 506 (68.2)
 Increase of 5<−10%3252 (9.5)3490 (10.6)
 Increase of >10%1030 (3.0)1336 (4.1)
  • *The combination of the physician’s diagnosis of DM using an International Classification of Diseases 10th Edition code (E10-E14) and the laboratory data of FBS of ≥126 mg/dL at baseline.

  • †The BMI change over 2 years was calculated as follows: (BMI at baseline−BMI in 2004 or 2005)/BMI at baseline.

  • BMI, body mass index; DM, diabetes mellitus; FBS, fasting blood sugar.