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Table 4 Age-adjusted odds ratios (95% Confidence Intervals) for self-reported stress by educational level, employment status and household income level during different study periods between years 1979–2002, men

From: Socio-economic differences in self-reported insomnia and stress in Finland from 1979 to 2002: a population-based repeated cross-sectional survey

  Age-adjusted model Age + all SES variables Age + all SES variables + depression
  79-82 83-87 88-92 93-97 98-02 1979-2002 1 1979-2002 1 1979-2002 1
  OR OR OR OR OR OR 95% CI OR 95% CI OR 95% CI
Educational level            
Highest 1.00 1.00 1.00 1.00 1.00 1.00   1.00   1.00  
Intermediate 0.71 0.68 0.73 0.81 0.80 0.76 0.71-0.82 0.73 0.68-0.79 0.67 0.62-0.73
Lowest 0.71 0.62 0.72 0.88 0.74 0.75 0.70-0.80 0.69 0.64-0.75 0.63 0.58-0.69
Interaction study period*educational level p = .419  
Employment status            
Employed 1.00 1.00 1.00 1.00 1.00 1.00   1.00   1.00  
Student 1.30 0.75 1.05 1.47 0.76 1.24 1.01-1.52 1.15 0.93-1.41 1.05 0.83-1.31
Retired 1.80 1.46 1.06 0.95 1.23 1.52 1.37-1.68 1.56 1.40-1.73 1.11 0.99-1.25
Unemployed 1.87 1.82 1.93 1.26 1.79 1.68 1.50-1.87 1.65 1.46-1.86 1.06 0.92-1.21
Interaction study period*employment status p < .001
Household income            
Highest 1.00 1.00 1.00 1.00 1.00 1.00   1.00   1.00  
2. highest 0.80 0.74 0.81 0.90 0.79 0.81 0.74-0.89 0.86 0.78-0.94 0.82 0.75-0.91
Middle 0.83 0.78 0.65 1.09 0.72 0.81 0.74-0.88 0.86 0.78-0.94 0.80 0.73-0.89
2. lowest 0.82 0.67 0.72 0.93 0.74 0.79 0.72-0.86 0.81 0.74-0.89 0.76 0.68-0.84
Lowest 1.05 0.93 0.91 1.37 1.23 1.12 1.03-1.21 1.13 1.03-1.24 1.04 0.94-1.16
Interaction study period*household income level p = .017
  1. 1Adjusted for study period.
  2. *Significant odds ratios in bold.