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Table 4 Association between preceding low back pain and onset of sleep disturbance

From: Low back pain is associated with sleep disturbance: a 3-year longitudinal study after the Great East Japan Earthquake

 

Low back pain at the third time point

 
 

Total

Absence

Presence

P value

Participants without sleep disturbance at the third time point

1,385

1,108

277

 

Onset of sleep disturbance at the fourth time point, n (%)

171 (12.3)

120 (10.8)

51 (18.4)

 

Crude OR (95% CI)

 

1 (Ref.)

1.86 (1.30–2.66)

< 0.001

Adjusted OR (95%CI)

 

1 (Ref.)

1.83 (1.24–2.69)

0.002

  1. Adjusted for sex, age, body mass index, living area, smoking habits, drinking habits, comorbid conditions, working status, walking time, living status, subjective economic condition, psychological distress, and social isolation. OR indicates odds ratio; CI, confidence interval.