Table 1

Characteristics of the study population (n = 2,583)

Socio-demographic factors

n

%


Age (years)

40-49

1001

38.75

50-64

922

35.69

65+

660

25.55

Education

No

422

16.34

Elementary school (≤ 6 years)

751

29.07

Middle/high school (7-12 years)

1146

44.37

University/higher (≥ 13 years)

264

10.22

Household monthly income1

Lowest tertile (≤ US$650)

851

32.95

Middle tertile (US$650-1,345)

866

33.53

Highest tertile (≥ US$1,345)

835

32.33

National health insurance (NHI)/Medicaid

NHI

2428

94.00

Medicaid

155

6.00

Private health insurance (PHI)

No

948

36.70

Yes

1629

63.07

NHI with or without PHI

NHI with PHI

1590

65.49

NHI without PHI

832

34.27

Medicaid with or without PHI

Medicaid with PHI

39

25.16

Medicaid without PHI

116

74.84

Marital status2

With spouse

1769

68.49

Without spouse

812

31.44

Residential area

Urban

1952

75.57

Rural

631

24.43

Health behavioral risk factors

Alcohol

Never

1062

41.11

Less than once per month

795

30.78

More than once per month

726

28.11

Lifetime smoker3

No

2348

90.90

Yes

235

9.10

Physical activity of moderate intensity4

Never

1558

60.32

More than once per week

719

27.84

Everyday

306

11.85

Psychological and cognition factors

Stress

Often

926

35.85

Rarely

1657

64.15

Self-reported depression5

No

2036

78.82

Yes

546

21.14

Attitude towards effectiveness of medical examination

Effective

1589

61.52

Not effective/not received medical exam.

993

38.44

Physical function and health status

Self-reported health status

Healthy

693

26.83

Fair

947

36.66

Unhealthy

943

36.51

Number of chronic diseases6

0-3

1497

57.96

4+

1086

42.04

Disabled7

No

2494

96.55

Yes

89

3.45

Visual problem

No

1544

59.78

Yes

1039

40.22

Hearing problem

No

2202

85.25

Yes

381

14.75

Walking problem

No

1931

74.76

Yes

652

25.24

Limitation in daily activities

No

2136

82.69

Yes

447

17.31


1 To calculate income per adult equivalent, we defined as household 'income/square root of person'

2 The term 'spouse' refers to an individual who is legally married or cohabiting, 'without spouse' refers to an individual who is single, divorced, or separated

3 'Lifetime smoker' included respondents who reported that they have smoked at least 100 cigarettes in their lifetime and now smoke

4 Moderate-intensity activitieswere defined as lasting at least 10 minutes and increasing heart rate slightly compared with sedentary activities

5 Experience of depression was assessed by the question, "During the past 1 year, have you often been bothered by little interest or pleasure in doing things nearly every day for the past 2 weeks?"

6 Chronic diseases such as hypertension, diabetes, cardiovascular disease, lung disease, musculoskeletal disease, gastrointestinal disease, and anemia

7 Registered as a disabled person

Lee et al. BMC Cancer 2010 10:144   doi:10.1186/1471-2407-10-144

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