Table 3 Multivariate logistic regression model predicting the risk factors of LBP among occupational groups in key industries in China, 2018–2020

Always make the same movements with your trunk

0.451

254.409

1.57

1.486–1.66

0.000

Working in the same postures at a high pace

0.338

76.079

1.401

1.299–1.512

0.000

Trunk posture

0.285

208.993

1.33

1.28–1.383

0.000

Always turn round with your trunk

0.247

76.57

1.28

1.211–1.353

0.000

Often work overtime

0.173

45.938

1.189

1.131–1.25

0.000

Lift heavy loads (more than 20 kg)

0.154

26.14

1.166

1.099–1.237

0.000

Education level

0.14

80.491

1.15

1.115–1.186

0.000

Staff shortage

0.138

30.886

1.147

1.093–1.205

0.000

Working age (years)

0.116

162.307

1.123

1.103–1.143

0.000

Cigarette smoking

0.113

41.701

1.119

1.082–1.158

0.000

Use vibration tools at work

0.087

11.129

1.091

1.037–1.149

0.001

Body mass index (BMI)

0.082

14.221

1.086

1.04–1.133

0.000

Lift heavy loads (more than 5 kg)

0.075

5.345

1.078

1.011–1.149

0.021

Age (years)

0.032

4.576

1.033

1.003–1.064

0.032

Physical exercise

−0.125

43.315

0.882

0.85–0.916

0.000

Standing often at work

−0.178

22.741

0.837

0.778–0.9

0.000

Abundant resting time

−0.532

390.399

0.587

0.557–0.619

0.000