Table 2
Univariate correlation to total sleep disturbance for “highly sleep disturbed” and “sleep disturbed”.
| Covariate | Range | HSDdich |
SDdich |
|||
|---|---|---|---|---|---|---|
| Chi-Q. | p | Chi-Q. | P | |||
| Number | 1 | 1031 | ||||
| L night,road | 15 | 63 | 23.670 | 0.000 | 80.482 | 0.000 |
| L night,rail | 11 | 63 | 1.048 | 0.306 | 10.880 | 0.000 |
| L night,air | 8 | 48 | 12.516 | 0.000 | 17.533 | 0.000 |
| Gender | 0 | 1 | 6.739 | 0.009 | 0.570 | 0.450 |
| Age | 18 | 97 | 1.941 | 0.164 | 8.071 | 0.004 |
| Age2 | – | – | 3.319 | 0.068 | 8.688 | 0.003 |
| Noise sensitivity | 0 | 10 | 24.891 | 0.000 | 47.783 | 0.000 |
| Personal health status | 0 | 10 | 0.065 | 0.799 | 0.021 | 0.885 |
| Educational level | 1 | 5 | 4.157 | 0.041 | 2.795 | 0.095 |
| Living here since (years) | 1 | 86 | 0.168 | 0.682 | 2.350 | 0.125 |
| Ownership house/apartment | 1 | 3 | 0.208 | 0.650 | 4.645 | 0.031 |
| Access to quiet façade | 1 | 2 | 2.945 | 0.086 | 1.703 | 0.192 |
| Noise protection given | 1 | 3 | 9.824 | 0.002 | 3.385 | 0.066 |
| Number of children in household | 0 | 5 | 0.307 | 0.580 | 2.485 | 0.115 |
Note: HSDdich = percentage of highly sleep disturbed by noise of multiple sources; SDdich = percentage of sleep disturbed by noise of multiple sources; Chi-Q. = Chi-square; p = significance level meeting the inclusion criteria (p < 0.1) is marked in bold.
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