Job Strain and Self-Reported Insomnia Symptoms among Nurses: What about the Influence of Emotional Demands and Social Support?
Table 2
Crude and adjusted OR for the association between job strain dimensions and self-reported insomnia symptoms, based on multivariate logistic regression tests. Rio de Janeiro, Brazil, 2011.
Job stress model dimensions
With insomnia symptoms
OR crude
Multivariate model 1
Multivariate model 2
Multivariate model 3
%
Psychological demands
Low
274
29.4
1.0
1.0
1.0
1.0
Medium
339
32.8
1.24 (1.01–1.51)
1.33 (1.08–1.65)
1.33 (1.08–1.65)
1.33 (1.07–1.64)
High
451
40.0
1.68 (1.38–2.05)
1.90 (1.54–2.34)
1.89 (1.54–2.34)
1.82 (1.48–2.27)
Emotional demands
Low
242
28.3
1.0
1.0
1.0
1.0
Medium
326
33.3
1.24 (0.99–1.53)
1.20 (0.97–2.07)
1.20 (0.97–1.50)
1.19 (0.96–1.49)
High
512
39.5
1.60 (1.31–1.95)
1.69 (1.38–2.07)
1.69 (1.38–2.07)
1.59 (1.29–1.96)
Job control
High
334
32.4
1.0
1.0
1.0
1.0
Medium
345
32.3
1.00 (0.82–1.21)
0.98 (0.80–1.19)
0.99 (0.80–1.20)
1.00 (0.82–1.22)
Low
372
39.8
1.36 (1.11–1.65)
1.36 (1.11–1.66)
1.37 (1.12–1.68)
1.40 (1.14–1.72)
Social support
High
311
29.4
1.0
1.0
1.0
1.0
Medium
397
34.1
1.17 (0.96–1.41)
1.14 (0.94–1.38)
1.14 (0.94–1.39)
1.18 (0.97–1.44)
Low
365
41.1
1.58 (1.29–1.92)
1.58 (1.29–1.93)
1.58 (1.29–1.93)
1.59 (1.29–1.95)
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.
