Table 2 Description of the studied samples in 2002 and 2010; Pelotas, RS, Brazil
From: Increase of chronic low back pain prevalence in a medium-sized city of southern Brazil
Variable | Â | 2002 | Â | 2010 |
|---|---|---|---|---|
N | %(CI 95%)** | N | %(CI 95%)** | |
Skin color | Â | Â | Â | Â |
White | 2696 | 84.7(83.5-86.0) | 2218 | 81.2(79.7-82.7) |
Non white | 486 | 15.3(14.0-16.5) | 513 | 18.8(17.3-20.2) |
Education (years) | Â | Â | Â | Â |
0 | 223 | 7.0(6.1-7.9) | 184 | 6.7(5.8-7.7) |
1-4 | 656 | 20.6(19.2-22.1) | 494 | 18.1(16.6-19.5) |
5-8 | 1067 | 33.6(31.9-35.2) | 773 | 28.3(26.6-30.0) |
9-11 | 780 | 24.5(23.0-26.0) | 732 | 26.8(25.1-28.5) |
≥ 12 | 451 | 14.2(13.0-15.4) | 547 | 20.0(18.5-21.5) |
Economic status | Â | Â | Â | Â |
High | 747 | 23.6(22.1-25.0) | 477 | 17.5(16.1-18.9) |
Medium | 1270 | 40.1(38.4-41.8) | 1318 | 48.4(46.5-50.0) |
Low | 1153 | 36.3(34.7-38.0) | 931 | 34.1(32.4-36.0) |
Civil status | Â | Â | Â | Â |
Married/partner | 1951 | 61.3(59.6-63.0) | 1606 | 58.8(56.9-60.6) |
Single/alone | 1231 | 38.7(37.0-40.4) | 1126 | 41.2(39.4-43.1) |
Occupation | Â | Â | Â | Â |
Never worked | - | - | 195 | 7.5(6.0-8.3) |
Trade/sales | - | - | 480 | 18.9(17.4-20.5) |
Education | - | - | 205 | 8.1(7.0-9.1) |
Health | - | - | 124 | 4.9(4.0-5.7) |
Manufacturing | - | - | 350 | 13.8(12.5-15.1) |
Services | - | - | 864 | 34.1(32.2-35.9) |
Agriculture | - | - | 66 | 2.6(2.0-3.2) |
Cleaning | - | - | 346 | 13.6(12.3-15.0) |
Construction | - | - | 99 | 3.9(3.1-4.7) |
Smoking | Â | Â | Â | Â |
Never smoker | 1668 | 52.4(50.7-54.2) | 1495 | 54.7(52.8-56.6) |
Former smoker | 627 | 19.7(18.3-21.1) | 654 | 24.0(22.3-25.5) |
Current smoker | 887 | 27.9(26.3-29.4) | 583 | 21.3(19.8-22.9) |
BMI* | Â | Â | Â | Â |
≤ 19.9 | 258 | 8.5(7.5-9.5) | 115 | 4.7(3.9-5.5) |
20-24.9 | 1284 | 42.1(40.4-43.9) | 807 | 33.0(31.1-34.8) |
25-29.9 | 1068 | 35.0(33.3-36.7) | 888 | 36.3(34.4-38.2) |
≥ 30 | 437 | 14.4(13.1-15.6) | 638 | 26.0(24.3-27.8) |
Insufficient physical activity § |  |  |  |  |
No | 1837 | 58.9(55.1-62.7) | 649 | 24.4(22.6-26.2) |
Yes | 1282 | 41.1(37.4-44.9) | 2007 | 75.6(73.8-77.4) |
Weight lifting/loading | Â | Â | Â | Â |
Never | - | - | 975 | 38.5(36.6-40.4) |
Sometimes | - | - | 887 | 35.1(33.2-36.9) |
Always | - | - | 668 | 26.4(24.7-28.1) |
Repetitiveness | Â | Â | Â | Â |
Never | - | - | 387 | 15.3(13.9-16.8) |
Sometimes | - | - | 629 | 24.9(23.3-26.6 |
Always | - | - | 1505 | 59.7(57.8-61.6) |
Forced/Awkward posture | Â | Â | Â | Â |
Never | - | - | 1072 | 42.4(40.4-44.3) |
Sometimes | - | - | 901 | 35.6(33.7-37.5) |
Always | - | - | 557 | 22.0(20.4-23.6) |
Static posture | Â | Â | Â | Â |
Never | - | - | 824 | 32.6(30.7-34.4) |
Sometimes | - | - | 842 | 33.3(31.4-35.1) |
Always | - | - | 863 | 34.1(32.3-36.0) |
Stopped doing some activity §§ |  |  |  |  |
No | - | - | 154 | 48.4(42.9-54.0) |
Yes | - | - | 164 | 51.6(46.0-57.1) |
Sought medical attention §§ |  |  |  |  |
No | - | - | 126 | 39.5(34.1-44.9) |
Yes | - | - | 193 | 60.5(55.1-65.9) |
Missed work || | Â | Â | Â | Â |
No | - | - | 114 | 80.3(73.7-86.9) |
Yes | - | - | 28 | 19.7(13.1-26.3) |