Table 4

Insomnia depending on months under high residential turnover
Whole Sample N = 2873 % Model 1: crude Model 2: adjusteda)
High residential turnover OR [−CI +CI] OR [−CI +CI]
Never (Ref.) 2218 77.2 1 1
At some time 544 18.9 1.20 [0.90 1.58] 1.11 [0.83 1.48]
All the time 111 3.9 1.62 [0.97 2.70] 1.33 [0.78 2.25]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.001 / 0.003 0.032 / 0.061
Subgroup: low-income N = 735 % Model 1: crude Model 2: adjustedb)
High residential turnover OR [−CI +CI] OR [−CI +CI]
Never (Ref.) 537 73.1 1 1
At some time 159 21.6 1.19 [0.73 1.93] 1.14 [0.70 1.86]
All the time 39 5.3 1.82 [0.83 3.98] 1.55 [0.70 3.46]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.003 / 0.005 0.017 / 0.029
Subgroup: less educated N = 334 % Model 1: crude Model 2: adjustedb)
High residential turnover OR [−CI +CI] OR [−CI +CI]
Never (Ref.) 241 72.2 1 1
At some time 69 20.6 1.45 [0.79 2.65] 1.33 [0.72 2.47]
All the time 24 7.2 1.46 [0.58 3.71] 1.36 [0.53 3.50]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.005 / 0.008 0.030 / 0.044
Subgroup: socially isolated N = 215 % Model 1: crude Model 2: adjustedb)
High residential turnover OR [−CI +CI] OR [−CI +CI]
Never (Ref.) 161 74.9 1 1
At some time 36 16.7 1.61 [0.71 3.69] 1.62 [0.67 3.93]
All the time 18 8.4
Model fit (Cox&Snell R2/ Nagelkerke`s R2) 0.012 / 0.019 0.049 / 0.076
Subgroup: non-movers N = 2317 % Model 1: crude Model 2: adjusteda)
High residential turnover OR [−CI +CI] OR [−CI +CI]
Never (Ref.) 1842 79.5 1 1
At some time 381 16.4 1.06 [0.76 1.49] 1.00 [0.71 1.41]
All the time 94 4.1 1.83* [1.07 3.12] 1.53 [0.88 2.66]
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.002 / 0.004 0.027 / 0.052
Subgroup: movers N = 556 % Model 1: crude Model 2: adjusteda)
High residential turnover OR [−CI +CI] OR [−CI +CI]
Never (Ref.) 376 67.6 1 1
At some time 163 29.3 1.59 [0.94 2.71] 1.45 [0.82 2.54]
All the time 17 3.1 § §
Model fit (Cox & Snell R2/ Nagelkerke`s R2) 0.006 / 0.012 0.077 / 0.147

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. Level of significance: * p-value < 0.05. † too small numbers in this exposure category as to calculate reliable odds ratios; 6 out of 18 social isolated participants suffered from insomnia. § too small numbers in this exposure category as to calculate reliable odds ratios; 1 out of 17 movers suffered from insomnia.

Riedel et al.

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

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