Table 3 Chronic low back pain in adults of Pelotas, in the years 2002 and 2010

4.2 (3.5-5.0)

9.6 (8.3-10.8)

2.29(1.77-2.68)

<0.001^§

<0.001^§

2.9 (2.3-3.5)

6.6 (5.1-8.1)

2.28(1.51-3.23)

5.2 (4.4-6.0)

11.7 (10.0-13.4)

2.25(1.68-2.75)

<0.001^§§

<0.001^§§

1.0 (0.7-1.4)

3.9 (2.4-5.4)

3.90(1.56-7.79)

3.1 (2.5-3.8)

7.6 (5.2-10.0)

2.45(1.43-4.22)

5.3 (4.6-6.1)

10.8 (8.1-13.6)

2.04(1.29-2.94)

7.7 (6.8-8.7)

12.5 (9.3-15.7)

1.62(1.07-2.35)

4.9 (4.2-5.7)

13.0 (9.2-16.8)

2.65(1.48-4.71)

5.3 (4.6-6.1)

12.9 (8.6-17.2)

2.43(1.17-3.85)

0.7^§

0.25^§

4.3 (3.6-5.1)

9.3 (7.9-10.6)

2.16(1.66-2.62)

3.9 (3.2-4.6)

10.9 (8.1-13.7)

2.79(1.59-4.41)

<0.001^§§

<0.001^§§

6.9 (6.0-7.8)

14.3 (9.7-18.9)

2.07(1.10-3.94)

6.3 (5.5-7.2)

13.0 (10.2-15.7)

2.06(1.33-2.89)

4.4 (3.7-5.2)

9.7 (7.5-11.9)

2.20(1.47-3.02)

2.7 (2.2-3.3)

8.1 (5.9-10.2)

3.00(1.75-4.67)

2.0 (1.5-2.6)

6.8 (4.7-8.8)

3.40(1.51-6.12)

0.07^§§

0.02^§§

2.8 (2.3-3.4)

7.8 (5.0-10.5)

2.79(1.48-4.20)

4.6 (3.9-5.4)

9.0 (7.4-10.5)

1.96(1.41-2.63)

4.6 (3.9-5.4)

11.3 (9.0-13.6)

2.46(1.67-3.20)

0.03^§§

0.007^§§

3.2 (2.6-3.9)

8.0 (6.6-9.4)

2.50(1.68-3.14)

5.0 (4.3-5.8)

11.3 (8.5-14.1)

2.26(1.50-3.47)

5.5 (4.7-6.3)

11.5 (9.2-13.9)

2.09(1.41-2.94)

0.01^§§

<0.001^§§

2.7 (2.1-3.3)

4.3 (0.5-8.0)

1.59(0.34-3.72)

3.4 (2.8-4.1)

8.0 (6.1-9.8)

2.35(1.60-3.43)

4.1 (3.4-4.9)

8.4 (6.5-10.2)

2.05(1.33-2.75)

6.2 (5.4-7.1)

14.2 (11.5-16.9)

2.29(1.44-3.37)