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Table 2 Drop-out analyses

From: Individual courses of low back pain in adult Danes: a cohort study with 4-year and 8-year follow-up

LBP Reported previously Age 45 Age 49
   % [95% CI] % [95% CI]
‘year’ no 11.7 [6.1;17.4] 19.1 [11.6;26.6]
  yes 17.3 [12.8;21.7] 14.3 [9.8;18.8]
‘month’ no 14.4 [9.9;18.9] 14.0 [8.8;19.1]
  yes 17.1 [11.5;22.8] 17.8 [11.9;23.6]
‘>30 days’ no 13.9 [10.0;17.4] 14.0 [9.7;18.2]
  yes 20.6 [12.6;28.6] 21.1 [12.5;29.7]
‘seeking care’ no 14.4 [10.4;18.4] 14.1 [9.8;18.5]
  yes 18.4 [11.2;25.7] 20.0 [12.0;28.0]
‘non-trivial’ no 14.6 [10.8;18.4] 14.4 [10.2;18.5]
  yes 19.7 [10.6;28.9] 21.4 [11.6;31.3]
sex male 18.7 [13.2;24.2] 31.3 [24.8;37.8]
  female 12.6 [8.1;17.1] 26.6 [20,7;32.6]
  1. The percentages of people dropping out at the age of 45 and 49 by LBP definition at the previous survey and by sex