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Table 2 Outcomes among CLBP patients according to presence of depression

From: The impact of depression among chronic low back pain patients in Japan

  Total
(N = 425)
Depression (PHQ-9 ≥ 10)
(N = 70)
No Depression (PHQ-9 < 10)
(N = 355)
 
Mean ± SD Mean ± SD Mean ± SD P value
Health status: Japanese norm-based scores
 Physical functioning 44.36 ± 15.43 37.73 ± 17.9 45.66 ± 14.57 <0.001
 Role physical 42.26 ± 14.29 32.51 ± 16.28 44.19 ± 13.05 <0.001
 Bodily pain 39.59 ± 8.89 34.61 ± 9.56 40.57 ± 8.43 <0.001
 General health 42.59 ± 10.96 33.25 ± 9.24 44.43 ± 10.32 <0.001
 Vitality 42.87 ± 10.92 30.98 ± 9.26 45.22 ± 9.63 <0.001
 Social functioning 43.03 ± 13.36 30.51 ± 13.63 45.49 ± 11.85 <0.001
 Role emotional 44.7 ± 13.14 32.34 ± 15.13 47.14 ± 11.22 <0.001
 Mental health 45.17 ± 11.2 32 ± 9.54 47.77 ± 9.55 <0.001
Health status: International scores
 Mental component 45.01 ± 10.92 31.27 ± 10.04 47.72 ± 8.85 <0.001
 Physical component 46.81 ± 7.65 44.08 ± 7.96 47.35 ± 7.48 0.001
 Health utility (SF-6D) 0.67 ± 0.12 0.56 ± 0.09 0.69 ± 0.11 <0.001
Work impairment
 Absenteeism % 4.92 ± 17.87 7.33 ± 22.37 4.39 ± 16.75 0.335
 Presenteeism % 31.59 ± 28.08 46.43 ± 26.12 28.43 ± 27.52 <0.001
 Overall work impairment % 33.90 ± 30.08 49.81 ± 27.74 30.40 ± 29.50 <0.001
Activity impairment % 37.34 ± 29.90 56.00 ± 27.21 33.66 ± 29.05 <0.001
HCP visits (past 6 months) 12.64 ± 16.24 19.67 ± 21.07 11.25 ± 14.75 <0.001
  1. HCP healthcare provider