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Table 4 Prevalence of self-reported low back pain and the associations with psychological factors

From: Prevalence and risk factors for low back pain among professional cooks working in school lunch services

  Male Female
  Total Prevalence(%) Pvalue1) PR adj 2) 95% CI Total Prevalence(%) Pvalue1) PR adj 2) 95% CI
Job satisfaction           
Satisfied 438 63.9   1   2944 72.1   1  
Dissatisfied 533 78.6 ** 2.08 1.57–2.77 1719 79.4 ** 1.49 1.29–1.71
Stress at work           
Fine 350 58.9   1   1683 64.5   1  
Stressful 647 79.6 ** 2.71 2.03–3.61 3069 80.3 ** 2.23 1.95–2.55
Family-related stress           
Fine 578 67.3   1   2268 70.9   1  
Stressful 411 79.8 ** 1.94 1.44–2.62 2478 78.2 ** 1.47 1.23–1.67
Financial constraints           
Fine 290 62.4   1   1812 68.3   1  
Stressful 707 76.4 ** 1.91 1.42–2.57 2933 78.6 ** 1.71 1.50–1.96
Health-related problems           
Fine 421 63.2   1   1751 66.5   1  
Stressful 567 79.4 ** 2.32 1.74–3.09 3002 79.5 ** 1.97 1.73–2.25
Worries about the future           
Fine 290 62.1   1   1265 65.1   1  
Stressful 700 76.7 ** 2.01 1.49–2.69 3475 78.1 ** 1.91 1.66–2.20
  1. 1) Chi-square test was conducted among men and women for each item. *p < 0.05, **p < 0.01.
  2. 2) Prevalence ratio was adjusted for age group.