Table 3

Insomnia depending on mean unemployment rate experienced in the neighbourhood
Whole Sample N = 2873 % Model 1: crude Model 2: adjusteda)
Neighbourhood unemployment rate OR [−CI +CI] OR [−CI +CI]
Lowest (first quartile, Ref.) 682 23.7 1 1
Mid-low (second quartile) 738 25.7 1.24 [0.87 1.77] 1.15 [0.80 1.64]
Mid-high (third quartile) 779 27.1 1.63** [1.17 2.28] 1.43* [1.02 2.02]
Highest (forth quartile) 674 23.5 1.74** [1.24 2.45] 1.42* [1.00 2.03]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.005 / 0.009 0.033 / 0.064
Subgroup: low-income N = 735 % Model 1: crude Model 2: adjustedb)
Neighbourhood unemployment rate OR [−CI +CI] OR [−CI +CI]
Lowest (first quartile, Ref.) 133 18.1 1 1
Mid-low (second quartile) 163 22.2 1.92 [0.88 4.21] 1.87 [0.85 4.14]
Mid-high (third quartile) 212 28.8 2.35* [1.12 4.93] 2.30* [1.09 4.85]
Highest (forth quartile) 227 30.9 3.04** [1.48 6.26] 2.90** [1.39 6.02]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.015 / 0.027 0.028 / 0.049
Subgroup: less educated N = 334 % Model 1: crude Model 2: adjustedb)
Neighbourhood unemployment rate OR [−CI +CI] OR [−CI +CI]
Lowest (first quartile, Ref.) 44 13.2 1 1
Mid-low (second quartile) 74 22.2 3.21* [1.01 10.22] 3.82* [1.17 12.45]
Mid-high (third quartile) 100 29.9 3.70* [1.21 11.32] 3.99* [1.28 12.48]
Highest (forth quartile) 116 34.7 3.65* [1.21 11.03] 3.51* [1.15 10.76]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.022 / 0.033 0.049 / 0.073
Subgroup: socially isolated N = 215 % Model 1: crude Model 2: adjustedb)
Neighbourhood unemployment rate OR [−CI +CI] OR [−CI +CI]
Lowest (first quartile, Ref.) 40 18.6 1 1
Mid-low (second quartile) 46 21.4 0.85 [0.23 3.19] 0.91 [0.24 3.49]
Mid-high (third quartile) 67 31.2 2.38 [0.80 7.06] 2.17 [0.71 6.62]
Highest (forth quartile) 62 28.8 3.33* [1.14 9.79] 3.32* [1.11 9.96]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.046 / 0.071 0.078 / 0.121
Subgroup: non-movers N = 2317 % Model 1: crude Model adjusteda)
Neighbourhood unemployment rate OR [−CI +CI] OR [−CI +CI]
Lowest (first quartile, Ref.) 568 24.5 1 1
Mid-low (second quartile) 591 24.8 1.37 [0.92 2.03] 1.28 [0.86 1.91]
Mid-high (third quartile) 623 26.9 1.82** [1.25 2.65] 1.64* [1.12 2.40]
Highest (forth quartile) 535 23.1 1.81** [1.23 2.66] 1.48 [0.99 2.20]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.006 / 0.011 0.029 / 0.056
Subgroup: movers N = 556 % Model 1: crude Model 2: adjusteda)
Neighbourhood unemployment rate OR [−CI +CI] OR [−CI +CI]
Lowest (first quartile, Ref.) 114 20.5 1 1
Mid-low (second quartile) 147 26.4 0.82 [0.37 1.82] 0.69 [0.30 1.60]
Mid-high (third quartile) 156 28.1 1.01 [0.48 2.16] 0.79 [0.35 1.80]
Highest (forth quartile) 139 25.0 1.46 [0.70 3.05] 1.31 [0.59 2.94]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.005 / 0.009 0.078 / 0.149

Multivariate logistic regression models for the whole sample and for subgroups: Odds ratios are shown for having insomnia (reference group: non-insomniacs) with 95% CIs.

Model 1: crude exposure, without any adjustment. Model 2 a): adjusted for years under high exposure to night-time noise, age, gender, economic activity, and education. Model 2 b): adjusted for years under high exposure to night-time noise, age, gender, and economic activity. Levels of significance: * p-value < 0.05, ** p-value < 0.01.

Riedel et al.

Riedel et al. BMC Public Health 2012 12:810   doi:10.1186/1471-2458-12-810

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