Job Strain and Self-Reported Insomnia Symptoms among Nurses: What about the Influence of Emotional Demands and Social Support?
Table 3
Crude and adjusted OR for the association between Demand-Control-Support Models, and self-reported insomnia symptoms, based on multivariate logistic regression tests. Rio de Janeiro, Brazil, 2011.
Models of job stress
With insomnia symptoms
OR crude
Multivariate model 1
Multivariate model 2
Multivariate model 3
%
Job strain
Low-strain
231
27.4
1.0
1.0
1.0
1.0
Passive
206
32.3
1.32 (1.04–1.68)
1.32 (1.03–1.68)
1.33 (1.04–1.70)
1.33 (1.04–1.71)
Active
269
36.5
1.63 (1.30–2.05)
1.75 (1.38–2.20)
1.75 (1.39–2.21)
1.69 (1.33–2.15)
High-strain
327
42.4
1.99 (1.60–2.49)
2.20 (1.75–2.77)
2.22 (1.76–2.80)
2.20 (1.74–2.78)
Job strain + social support
Low-strain + high support
386
29.7
1.0
1.0
1.0
1.0
Low-strain + low support
314
35.0
1.19 (0.82–1.17)
1.17 (0.81–1.70)
1.19 (0.82–1.72)
1.17 (0.80–1.71)
High-strain + high support
90
36.0
1.62 (1.16–2.26)
1.81 (1.28–2.55)
1.83 (1.29–2.58)
1.78 (1.26–2.52)
High-strain + low support
235
45.6
2.40 (1.84–3.14)
2.60 (1.98–3.42)
2.64 (2.00–3.48)
2.64 (1.99–3.49)
Emotional demand-control model
Low demand + high control
276
29.6
1.0
1.0
1.0
1.0
Low demand + low control
274
33.3
1.18 (0.95–1.47)
1.18 (0.94–1.47)
1.19 (0.95–1.48)
1.20 (0.96–1.51)
High demand + high control
231
34.7
1.25 (0.99–1.56)
1.32 (1.05–1.66)
1.32 (1.04–1.66)
1.25 (0.99–1.58)
High demand + low control
266
44.9
1.89 (1.50–2.37)
2.08 (1.64–2.62)
2.08 (1.65–2.63)
1.99 (1.57–2.53)
Emotional demand-control model + social support
Low demand/high control + high support
416
30.3
1.0
1.0
1.0
1.0
Low demand/low control + low support
358
35.1
1.10 (0.79–1.5)
1.10 (0.80–1.54)
1.12 (0.81–1.56)
1.13 (0.81–1.59)
High demand/high control + high support
69
36.3
1.32 (0.92–1.90)
1.48 (1.02–2.15)
1.49 (1.02–2.16)
1.41 (0.96–2.05)
High demand/low control + low support
197
49.4
2.33 (1.77–3.07)
2.53 (1.91–3.35)
2.55 (1.93–3.39)
2.47 (1.86–3.29)
Multivariate model 1: adjustments for sociodemographics: sex, age, income, marital status, and children under 6 years. Multivariate model 2: model 1 + adjustments for work-related factors: working hours and night work. Multivariate model 3: model 2 + adjustments for health-related factors: BMI, smoking habits, alcohol consumption, physical activity, and coffee intake.
