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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: J Sleep Res. 2018 Aug 29;28(1):e12763. doi: 10.1111/jsr.12763

TABLE 2.

Descriptive statistics (n = 24,553)

Range Mean Standard
deviation
Reliability
Sleep disturbance 0–1 0.21
Employment insecurity −2.18–3.24 0.00  1.00 0.57
Precarious employment 0–1 0.16
Public sector 0–1 0.28
Private sector 0–1 0.66
Public/private sector 0–1 0.04
Non-profit sector 0–1 0.01
Workplace tenure 0–50 10.85  9.67
Workplace size 1–8 4.03  1.91
Age (years) 25–65 43.06 10.24
Female 0–1 0.50
Immigrant 0–1 0.13
Household size 0–16 3.03  1.36
Partnership status 0–1 0.73
Number of children 0–5 1.03  1.05
Child care provider 0–1 0.55
Elder care provider 0–1 0.16
Education 1–7 4.40  1.30
Primary earner 0–1 0.66

Source: European Working Conditions Survey (2010).