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Table 2 Hazard ratios from the occupational fishery work exposures on incident hospital contact with any musculoskeletal disorders between 1994 and 2017 (n = 15,739)

From: The risk of an incident hospital contact with a musculoskeletal disorder in Danish occupational fishers: a register-based study

  

Model 1

Model 2

Model 3

  

Person-years: 89,906,617

Person-years: 82,239,890

Occupational fishery exposures for men:

 

HR

95%CI

HR

95%CI

HR

95%CI

Binary age (age cohort)

Ref; born before 1976

0.62

0.54, 0.71

0.18

0.14, 0.22

na

na

Years in workforce1

Ref; <average 15.73

0.17

0.16, 0.18

0.17

0.16, 0.18

0.82

0.78, 0.88

Years as fisherman

> 20 years

1

ref

1

ref

1

Ref

 

16-<20 years

2.63

2.29, 3.04

2.04

1.76, 2.35

1.89

1.59, 2.24

 

11-<15 years

4,63

4.05, 5.30

1.94

1.69, 2.24

1.22

1.02, 1.46

 

5-<10 years

7.08

6.62, 8.07

1.71

1.48, 1.98

0.95

0.78, 1.14

 

< 5 years

15.05

13.03, 17.12

2.40

2.06, 2.80

2.83

2.33, 3.45

 N = occupational shifts

Ref < average 3.19

0.38

0.36, 0.41

1.17

1.09, 1.25

1.06

0.98, 1.15

Captain education

Ref; no

1.06

0.97, 1.15

0.79

0.72, 0.86

0.82

0.74, 0.90

Self-employed during working life (%)

Ref; min/50

0.39

0.36, 0.43

1.01

0.92, 1.11

1.10

1.03, 1.17

Full- or part time work2

Ref; Full time

1.13

1.03, 1.23

0.71

0.65, 0.78

1.09

0.90, 1.30

Occupational fishery exposures for women:

 

HR

95%CI

HR

95%CI

HR

95%CI

Binary age (age cohort)

Ref; born before 1976

0.91

0.72, 1.14

1.06

0.84, 1.34

na

na

Years in workforce1

Ref; < average 21.61

0.25

0.23, 0.28

0.25

0.22, 0.28

0.67,

0.61, 0.76

Years as fisherman

> 5 years

1

Ref

1

Ref

1

Ref

 

< 5 years

1.62

1.35, 1.95

1.69

1.40, 2.05

1.86

1.45, 2.37

 N = occupational shifts

Ref; < average 7.46

0.57

0.51, 0.65

0.81

0.71, 0.93

0.78

0.67, 0.90

Self-employed during working life (%)

Ref; min/50

0.56

0.30, 1.07

0.88

0.46, 1.68

1.03

0.90, 1.17

Full-or part time work2

Ref; Full time

0.93

0.74, 1.16

0.99

0.79, 1.24

1.07

0.74, 1.56

  1. Abbreviations: HR (Hazard ratio), CI (confidence interval), ref (statistical reference), na (not applicable)
  2. 1 Years in workforce until event or censoring
  3. 2 Presented as the mode of possible variable categories throughout their follow-up period
  4. Bold: significant associations
  5. Model 1: Crude model, age as time scale
  6. Model 2: Adjusted for: years in workforce, marital status, region, Charlson 2000 comorbidity index, country of origin, educational level, age as time scale
  7. Model 3: Adjusted for abovementioned covariates and adding period (before and after 2002), age as time scale