## Table 4 |
||||||||

Insomnia depending on months under high residential turnover |
||||||||

Whole Sample |
N = 2873 |
% |
Model 1: crude |
Model 2: adjusted^{a)} |
||||

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 R^{2}/ Nagelkerke`s R^{2}) |
0.001 / | 0.003 | 0.032 / | 0.061 | ||||

Subgroup: low-income |
N = 735 |
% |
Model 1: crude |
Model 2: adjusted^{b)} |
||||

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 R^{2}/ Nagelkerke`s R^{2}) |
0.003 / | 0.005 | 0.017 / | 0.029 | ||||

Subgroup: less educated |
N = 334 |
% |
Model 1: crude |
Model 2: adjusted^{b)} |
||||

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 R^{2}/ Nagelkerke`s R^{2}) |
0.005 / | 0.008 | 0.030 / | 0.044 | ||||

Subgroup: socially isolated |
N = 215 |
% |
Model 1: crude |
Model 2: adjusted^{b)} |
||||

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 R^{2}/ Nagelkerke`s R^{2}) |
0.012 / | 0.019 | 0.049 / | 0.076 | ||||

Subgroup: non-movers |
N = 2317 |
% |
Model 1: crude |
Model 2: adjusted^{a)} |
||||

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 R^{2}/ Nagelkerke`s R^{2}) |
0.002 / | 0.004 | 0.027 / | 0.052 | ||||

Subgroup: movers |
N = 556 |
% |
Model 1: crude |
Model 2: adjusted^{a)} |
||||

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 | Â§ | Â§ | ||||

Model fit (Cox & Snell R^{2}/ Nagelkerke`s R^{2}) |
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. Â§ 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