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Table 1 The prevalence and percentages of individuals with low, medium and high levels of depressive symptoms across number of musculoskeletal pain locations at baseline with number of cases and incidence rates for long term sickness absence (LTSA)

From: Comorbid symptoms of depression and musculoskeletal pain and risk of long term sickness absence

Pain Location count low depressive symptoms medium depressive symptoms high depressive symptoms Total
0 91.4 (1598) 5.8 (102) 2.8 (48) 28.0(1748)
cases/incidence rates 166/.22 15/.33 12/.65 194/.24
Chi2 contribution 31.3 72.6 48.9 152.9
1 82.9 (1415) 11.2 (191) 5.9 (100) 27.3(1706)
cases/incidence rates 227/.36 29/.34 21/.52 277/.36
Chi2 contribution 2.6 5.5 4.6 12.6
2 73.7 (1340) 17.1 (311) 9.2 (168) 29.1(1819)
cases/incidence rates 242/.40 69/.56 31/.46 343/.42
Chi2 contribution 7.8 20.2 9.9 37.9
3 62.9 (612) 23.0 (224) 14.1 (137) 15.6(973)
cases/incidence rates 130/.48 45/.47 35/.62 212/.50
Chi2 contribution 33.7 70.0 62.5 166.2
Total 79.5 (4965) 13.3 (828) 7.25 (453) 6246
cases/incidence rates 791/.34 166/.46 105/.55 1070/.36
Chi2 contribution 75.3 168.3 125.9 369.5
  1. X2(6, N = 6246) = 369.52, p < 0.001
  2. Incidence rates are presented in cases pr 1,000,000 person days