Table 1 Socio-demographic distribution of the sample

Age group

 18–34

2264

32.4

-

 35–49

2308

34.7

-

 50–64

1401

22.6

-

 65+

318

10.4

-

Ethnicity

 Chinese

1976

77.9

-

 Malay

2145

11.4

-

 Indian

1905

8.2

-

 Others

265

2.5

-

Sex

 Male

3191

48.9

0.9

 Female

3100

51.1

0.9

Marital

 Single

1787

29.4

0.7

 Married

4076

62.4

0.8

 Divorced/separated

248

4.2

0.4

 Widowed

178

3.9

0.4

Education

 Primary and below

203

4.7

0.4

 Secondary

813

14.1

0.6

 Pre-u/junior-college/diploma

1905

27.9

0.8

 Vocational

1331

22.9

0.7

 University

706

8.0

0.4

Employment

 Employed

4464

71.8

0.8

 Economically inactive^a

1365

23.8

0.7

 Unemployed

285

4.4

0.4

Income

 Below $SD 20,000

3110

50.3

0.9

 $SD 20,000–49,999

1900

31.8

0.8

 Above $SD 50,000

955

17.9

0.7

BMI

 Underweight

446

8.4

0.5

 Normal

3338

60.3

0.9

 Overweight

1719

23.6

0.8

 Obese

788

7.8

0.4

Smoking

 No

4891

83.7

0.6

 Yes

1270

16.3

0.6