Table 1.
Comparison of the demographic and socioeconomic characteristics of participants, non-participants, and the study population.
| Participants | Non-Participants 1 | Study Population 2 | |||
|---|---|---|---|---|---|
| n | % | n | % | % | |
| Noise level (Lden in dB) | |||||
| Paris-Charles de Gaulle | |||||
| <50 | 108 | 17% | 324 | 22% | - |
| 50–54 | 102 | 16% | 215 | 14% | - |
| 55–59 | 208 | 34% | 464 | 31% | - |
| ≥60 | 202 | 33% | 497 | 33% | - |
| Toulouse-Blagnac | |||||
| <50 | 104 | 25% | 198 | 29% | - |
| 50–54 | 103 | 25% | 159 | 23% | - |
| 55–59 | 101 | 25% | 160 | 23% | - |
| ≥60 | 103 | 25% | 169 | 25% | - |
| Lyon Saint-Exupery | |||||
| <50 | 105 | 49% | 166 | 57% | - |
| 50–54 | 102 | 48% | 124 | 43% | - |
| 55–59 | 5 | 2% | 1 | 0% | - |
| ≥60 | 1 | 1% | 0 | 0% | - |
| Gender | |||||
| Men | 549 | 44% | 1028 | 41% | 48% |
| Women | 695 | 56% | 1449 | 59% | 52% |
| Age | |||||
| 18–34 | 226 | 18% | 497 | 20% | 26% |
| 35–44 | 236 | 19% | 435 | 18% | 17% |
| 45–54 | 266 | 21% | 416 | 17% | 19% |
| 55–64 | 260 | 21% | 448 | 18% | 15% |
| 65–74 | 185 | 15% | 332 | 13% | 13% |
| ≥75 | 71 | 6% | 331 | 13% | 10% |
| Marital status | |||||
| Single | 253 | 20% | 555 | 22% | - |
| Married | 782 | 63% | 1326 | 54% | - |
| Widowed | 76 | 6% | 281 | 11% | - |
| Divorced | 133 | 11% | 194 | 8% | - |
| Other | 0 | 0% | 10 | 0% | - |
| Unknown/refusal | 0 | 0% | 111 | 5% | - |
| Socio-occupational category | |||||
| Farming, trade | 32 | 2% | 81 | 3% | 5% |
| Executive, superior Intellectual occupation | 227 | 18% | 322 | 13% | 9% |
| Intermediate | 220 | 18% | 103 | 4% | 14% |
| Office worker | 268 | 22% | 749 | 30% | 17% |
| Manual worker | 79 | 6% | 145 | 6% | 13% |
| Retiree | 337 | 27% | 929 | 38% | 25% |
| Never worked or long-term unemployed (students, housewives, other) | 81 | 7% | 134 | 5% | 17% |
| Unknown/refusal | 0 | 0% | 14 | 1% | - |
1 People randomly selected and contacted by phone, but who refused to participate. These people responded to a short questionnaire about their demographic and socioeconomic characteristics. 2 The distribution of the study population is based on data from the 1999 INSEE census, adjusted in 2007, for individuals aged 18 and over and living in one of the 161 municipalities of the study area.