Table 5 Factors associated with the prevalence of back pain and work absence in shipyard workers-working posture

・Often work in a seated posture

0.661

0.343–1.274

0.573

0.291–1.126

・Often work in a sitting posture

1.271

0.760–2.126

0.956

0.569–1.608

・Often work in a half-sitting posture

2.241

1.363–3.684

1.302

0.782–2.166

・Often work in a standing posture

0.922

0.572–1.486

0.682

0.419–1.108

・Often twist the wait during work

0.929

0.454–1.903

1.412

0.697–2.858

・Often bend forward at the waist an extreme degree

1.516

0.665–3.358

1.109

0.498–2.467

・Often raise hands above the shoulders or extend arms

2.271

1.111–4.641

0.745

0.364–1.525

・Sometimes work in a lying posture

0.922

0.461–1.844

2.420

1.223–4.789