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Table 1 Sample distribution and prevalence of the stages of change for physical activity according to the covariates§. Pelotas, Brazil, 2005.

From: Stages of change for physical activity in adults from Southern Brazil: a population-based survey

Variable

N

Precontemplation (%)

Contemplation (%)

Preparation (%)

Action (%)

Maintenance (%)

Sex

 

p = 0.5*

p = 0.002*

p = 0.001*

p = 0.004*

p < 0.001*

   Male

1378

39.0

10.8

16.6

3.9

29.7

   Female

1758

37.7

14.8

21.7

6.2

19.6

Skin color

 

p = 0.03*

p = 0.5*

p = 0.4*

p = 0.3*

p = 0.6*

   White

2634

37.3

13.3

19.7

5.4

24.3

   Non-white

502

43.2

11.8

17.9

4.2

22.9

Age (years)

 

p < 0.001**

p < 0.001**

p = 0.01**

p < 0.001**

p = 0.9**

   20–29

747

27.2

16.1

20.6

8.0

28.1

   30–39

611

38.6

15.9

19.2

6.7

19.6

   40–49

661

41.6

11.2

23.8

3.9

19.5

   50–59

520

39.4

12.3

17.3

3.1

27.9

   60–69

342

40.9

12.9

16.1

3.5

26.6

   ≥ 70

255

55.7

3.9

14.5

2.8

23.1

Marital status

 

p = 0.002*

p = 0.2*

p = 0.7*

p = 0.2*

p = 0.05*

   Without a partner

1168

34.4

13.9

19.8

5.9

26.0

   With a partner

1968

40.6

12.5

19.3

4.7

22.9

Education level (years)

 

p < 0.001**

p < 0.001**

p < 0.001**

p < 0.001**

p < 0.001**

   0

209

59.3

5.7

16.3

1.9

16.8

   1–4

574

53.1

11.7

12.4

2.8

20.0

   5–8

1005

45.7

12.1

18.4

4.7

19.1

   9–11

824

26.8

15.8

21.6

6.7

29.1

   ≥ 12

522

17.4

14.9

27.2

7.7

32.8

Economic status†

 

p < 0.001**

p = 0.1**

p < 0.001**

p < 0.001**

p < 0.001**

   A (wealthiest)

161

15.5

14.3

23.6

9.9

36.7

   B

824

26.2

14.4

24.2

7.4

27.8

   C

1295

41.3

12.9

18.3

4.5

23.0

   D

762

50.4

11.4

16.2

3.0

19.0

   E

73

47.9

12.3

11.0

4.1

24.7

Family income (quintiles)

 

p < 0.001**

p = 0.04**

p = 0.007**

p = 0.02**

p < 0.001**

   1 (lower)

577

48.0

10.2

16.5

5.2

20.1

   2

621

47.8

11.4

18.7

3.4

18.7

   3

676

38.8

15.4

17.6

3.8

24.4

   4

581

34.9

13.3

20.7

6.0

25.1

   5

660

23.7

14.2

23.5

7.4

31.2

Smoking

 

p < 0.001*

p = 0.3*

p = 0.05*

p = 0.09*

p < 0.001*

   Non-smoker

1634

33.8

13.5

20.6

6.1

26.0

   Former smoker

664

36.9

11.3

19.9

3.9

28.0

   Current smoker

838

48.1

13.5

16.8

4.4

17.2

BMI (kg/m2)‡

 

p = 0.001**

p = 0.08**

p < 0.001**

p = 0.7**

p = 0.3**

   < 18.5

75

62.6

14.7

6.7

2.7

13.3

   18.5 a 24.9

1393

39.3

11.9

17.7

5.5

25.6

   25.0 a 29.9

1092

34.6

13.8

21.4

4.7

25.5

   ≥ 30.0

471

34.4

15.1

24.6

5.9

20.0

Self-reported health status

 

p < 0.001**

p = 0.2**

p = 0.4**

p = 0.02**

p < 0.001**

   Excellent

412

27.7

11.4

19.9

4.8

36.2

   Very good

419

27.0

13.1

20.3

9.1

30.5

   Good

1428

40.3

13.0

19.5

4.7

22.5

   Regular

723

44.0

13.5

19.5

4.7

18.3

   Poor

154

52.6

14.9

15.6

2.0

14.9

Total

3136

38.3

13.0

19.5

5.2

24.0

  1. § Percent values in the rows must add 100%.
  2. † Criterion of Brazilian Economic Classification [17].
  3. ‡ BMI had 3.3% of missing values; the other variables had less than 1%.
  4. * Wald test for heterogeneity.
  5. ** Wald test for linear trend.