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Table 8 Associations between baseline workplace sitting in 2012 and lower back complaints in the last 12 months in 2017 (yes/no) stratified by leisure time physical activity to baseline among 2,082 employees aged 31–60 years in Germany. Poisson regressions. Prevalence Rations (PR)

From: Impact of sitting at work on musculoskeletal complaints of German workers - results from the study on mental health at work (S-MGA)

Exposure

Strata defined by leisure time physical activity prior to baseline

Lower back, n = 1177

Occupational sitting 2012

none of the time

little/some of the time

mostly/all the time

PR

95% CI

PR

95% CI

PR

95% CI

Model 3

Under 5 h/week

1

(Ref)

1

(Ref)

1

(Ref)

5 to < 15 h/week

1.15

0.98–1.36

1.00

0.86–1.17

0.71

0.50–1.01

15 to < 25 h/week

1.22

1.01–1.47

1.13

0.96–1.33

0.80

0.57–1.12

25 to < 35 h/week

1.32

1.07–1.63

1.03

0.85–1.24

0.88

0.54–1.41

35 or more hours/week

1.08

0.87–1.43

1.03

0.85–1.25

0.66

0.34–1.29

  1. Model 3: adjusted for sex, age, occupational level, BMI, smoking, musculoskeletal diseases at baseline, psychological disorders and lifting/carrying heavy loads at work
  2. PR: prevalence ratio, Ref.: reference category
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Journal of Occupational Medicine and Toxicology

ISSN: 1745-6673