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Table 4 Results of multivariable multinomial logistic regression analysis regarding the association of duration of disabling back pain with sociodemographic, lifestyle- and work-related factors (n = 16,346)

From: Prevalence of back pain in employees of a German chemical company: results of a large cross-sectional study

 

Multivariable analysis (n = 16,346)

1–7 days vs. 0 days

8–30 days vs. 0 days

> 30 days vs. 0 days

Sociodemographic characteristics

aOR (95%-CI)

aOR (95%-CI)

aOR (95%-CI)

 Age

  < 35 (reference)

   

  35–39

1.38 (1.17–1.63)

1.88 (1.45–2.44)

1.78 (1.21–2.61)

  40–44

1.23 (1.05–1.43)

2.41 (1.91–3.03)

2.81 (2.02–3.90)

  45–49

1.50 (1.29–1.73)

2.81 (2.25–3.51)

3.41 (2.47–4.70)

  50–54

1.42 (1.22–1.66)

3.22 (2.57–4.04)

4.88 (3.55–6.70)

  ≥ 55

1.23 (1.03–1.47)

3.07 (2.40–3.92)

5.48 (3.92–7.65)

 Gender

  Male (reference)

   

  Female

1.02 (0.90–1.14)

1.19 (1.02–1.39)

1.86 (1.54–2.24)

 Marital status

  Single (reference)

   

  Married

1.17 (1.04–1.32)

1.32 (1.11–1.56)

1.26 (1.01–1.56)

  Divorced

1.41 (1.17–1.70)

1.49 (1.18–1.89)

1.20 (0.88–1.63)

  Widowed

0.83 (0.47–1.48)

1.70 (0.99–2.90)

1.47 (0.79–2.75)

Lifestyle-related characteristics

 Smoking status

  Non-smoker (reference)

   

  Former smoker

1.08 (0.97–1.21)

1.25 (1.10–1.43)

1.55 (1.32–1.82)

  Smoker

1.07 (0.95–1.20)

1.20 (1.04–1.38)

1.51 (1.27–1.81)

Work-related characteristics

 Occupational status

  Managerial staff (reference)

   

  Skilled/supervisory worker

1.65 (1.46–1.86)

2.90 (2.41–3.50)

2.72 (2.13–3.47)

  Manual worker

1.93 (1.68–2.20)

4.29 (3.53–5.23)

4.70 (3.64–6.07)

 Work-related stress score (quartiles)

  Q1 (0–6 points; reference)

   

  Q2 (7–8 points)

1.41 (1.25–1.59)

1.62 (1.38–1.91)

1.64 (1.33–2.03)

  Q3 (9–10 points)

1.70 (1.50–1.93)

2.28 (1.94–2.67)

2.61 (2.12–3.21)

  Q4 (≥ 11 points)

2.22 (1.96–2.52)

3.34 (2.85–3.92)

4.33 (3.53–5.30)

Back-related variables

 Ever acquired a spinal injury due to an accident

  No (reference)

   

  Yes

1.89 (1.52–2.36)

2.63 (2.06–3.35)

4.18 (3.22–5.44)

 History of spondylopathy (ICD-10: M45-M49)

  No (reference)

   

  Yes

2.00 (1.37–2.91)

3.24 (2.24–4.69)

5.59 (3.86–8.10)

 History of other dorsopathy excluding back pain (ICD-10: M50-M53)

  No (reference)

   

  Yes

1.98 (1.77–2.21)

2.98 (2.63–3.36)

5.12 (4.43–5.90)

  1. aOR adjusted (multinomial) Odds Ratio, 95%-CI 95%-Confidence interval; Working time system and Body-Mass-Index were eligible to be entered into the final multivariable regression model but eliminated during the iterative process of model building