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Table 1 Pelotas population according the 2000 and 2010 census and the surveys of 2002 and 2010

From: Increase of chronic low back pain prevalence in a medium-sized city of southern Brazil

Variable   2000 Census*   2002 Survey   2010 Census*   2010 Survey
  N % N %(CI 95%)** N % N %(CI 95%)**
Sex         
Male 97123 45,8 1374 43.2(41.5-44.9) 107757 45.6 1151 42.1(40.3-44.0)
Female 115016 54,2 1808 56.8(55.1-58.5) 128712 54.4 1581 57.9(56.0-59.7)
Age         
20-29 50620 23.9 719 22.6(21.1-24.1) 55415 23.4 595 21.8(20.2-23.3)
30-39 48196 22.7 680 21.4(19.9-22.8) 45696 19.3 462 16.9(15.5-18.3)
40-49 43759 20.6 667 21.0(19.5-22.4) 45363 19.2 545 20.0(18.4-21.4)
50-59 31283 14.7 533 16.8(15.4-18.0) 40231 17.0 495 18.1(16.7-19.6)
60-69 21190 10.0 307 9.6(8.6-10.7) 26959 11.4 369 13.5(12.2-14.8)
≥ 70 17091 8.1 276 8.6(7.7-9.7) 22805 9.7 266 9.7(8.6-10.8)
  1. *Data from DATASUS (Database of the Unified Health System) according the Brazilian Census (Brazilian Institute of Geography and Statistics (IBGE).
  2. **95% Confidence Interval.