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Table 4 Crude, semi-adjusted. and fully adjusted models for the subgroup analyses of shift schedule types and long-term sickness absence

From: Cumulative exposure to shift work and sickness absence: associations in a five-year historic cohort

 

Crude model

Semi-adjusted model

Fully adjusted model

OR (95% CI)

OR (95% CI)

OR (95% CI)

Without children (n = 2121)

 Shifttype 2005–2008

Day work

Reference

Reference

Reference

Three-shift schedule

2.14 (1.61–2.85)

1.80 (1.30–2.50)

1.40 (0.97–2.01)

Two-shift schedule

2.55 (1.86–3.51)

2.34 (1.62–3.36)

1.76 (1.19–2.61)

Transfer out of three-shift

1.22 (0.75–1.99)

1.03 (0.60–1.75)

0.89 (0.52–1.55)

Transfer into three-shift

3.06 (2.07–4.52)

2.43 (1.55–3.81)

1.76 (1.08–2.87)

Other kind of transfer

2.58 (1.80–3.71)

2.16 (1.41–3.28)

1.74 (1.12–2.69)

With children (n = 5441)

 Shifttype 2005–2008

Day work

Reference

Reference

Reference

Three-shift schedule

1.79 (1.52–2.12)

1.34 (1.10–1.62)

1.05 (0.85–1.30)

Two-shift schedule

1.53 (1.27–1.84)

1.18 (0.96–1.46)

0.91 (0.73–1.14)

Transfer out of three-shift

1.19 (0.92–1.55)

1.09 (0.81–1.46)

0.90 (0.67–1.22)

Transfer into three-shift

2.34 (1.83–2.98)

1.68 (1.28–2.21)

1.19 (0.88–1.60)

Other kind of transfer

1.31 (1.03–1.67)

1.09 (0.83–1.43)

0.85 (0.63–1.13)

Married/cohabiting (n = 5667)

 Shifttype 2005–2008

Day work

Reference

Reference

Reference

Three-shift schedule

1.84 (1.56–2.17)

1.38 (1.14–1.68)

1.10 (0.89–1.35)

Two-shift schedule

1.60 (1.33–1.92)

1.27 (1.03–1.57)

0.99 (0.79–1.24)

Transfer out of three-shift

1.17 (0.90–1.53)

1.04 (0.78–1.39)

0.88 (0.65–1.18)

Transfer into three-shift

2.27 (1.79–2.89)

1.67 (1.28–2.19)

1.18 (0.88–1.58)

Other kind of transfer

1.38 (1.09–1.75)

1.17 (0.89–1.53)

0.93 (0.70–1.23)

Single (n = 1355)

 Shifttype 2005–2008

Day work

Reference

Reference

Reference

Three-shift schedule

2.23 (1.56–3.19)

1.90 (1.26–2.89)

1.36 (0.86–2.17)

Two-shift schedule

3.18 (2.15–4.72)

2.66 (1.67–4.23)

1.82 (1.10–3.01)

Transfer out of three-shift

1.64 (0.90–3.00)

1.22 (0.62–2.39)

1.03 (0.51–2.05)

Transfer into three-shift

3.23 (2.00–5.21)

2.45 (1.41–4.27)

1.66 (0.90–3.03)

Other kind of transfer

2.75 (1.75–4.32)

2.29 (1.35–3.90)

1.84 (1.06–3.18)

Divorced/widow (n = 540)

 Shifttype 2005–2008

Day work

Reference

Reference

Reference

Three-shift schedule

1.73 (1.04–2.86)

1.43 (0.80–2.57)

1.20 (0.63–2.27)

Two-shift schedule

1.25 (0.73–2.14)

1.21 (0.66–2.23)

1.00 (0.52–1.96)

Transfer out of three-shift

0.97 (0.42–2.28)

1.01 (0.38–2.66)

0.89 (0.32–2.45)

Transfer into three-shift

5.97 (2.23–15.97)

4.90 (1.61–14.94)

3.96 (1.24–12.69)

Other kind of transfer

1.59 (0.76–3.30)

1.39 (0.60–3.25)

1.05 (0.43–2.56)

  1. Semi-adjusted model adjusted for age, gender, marital status, having children, commuting distance, employment duration, mean contract percentage, working overtime, and previous sickness absence days. Job classification variables special operational requirements, knowledge requirements, and aggravated working conditions were added to the fully adjusted model
  2. Bold: P < 0.05