Study population, sample, respondents and response rate, and descriptive data of respondents and exposure related to area
| Area | I | II | III | IV | V | VI | VII | Total |
|---|---|---|---|---|---|---|---|---|
| Study population | 1085 | 40 | 48 | 672 | 311 | 217 | 1098 | 3471 |
| Sample | 396 | 24 | 23 | 221 | 148 | 112 | 385 | 1309 |
| Respondents | 206 | 16 | 12 | 141 | 87 | 70 | 222 | 754 |
| Response rate (%) | 52.0 | 66.7 | 52.2 | 63.8 | 58.8 | 62.5 | 57.7 | 57.6 |
| Description of respondents and exposure | ||||||||
| Age (years), mean (SD) | 52 (15) | 51 (18) | 54 (15) | 52 (14) | 49 (16) | 49 (15) | 51 (15) | 51 (15) |
| Sex (% male) | 40 | 53 | 58 | 47 | 48 | 38 | 46 | 44 |
| Occupation (% employed) | 54 | 33 | 58 | 57 | 61 | 58 | 62 | 58 |
| (% retired) | 28 | 53 | 33 | 24 | 22 | 21 | 23 | 25 |
| Housing type (% detached) | 70 | 93 | 100 | 70 | 89 | 93 | 82 | 79 |
| Length of time in current dwelling (years), mean (SD) | 14 (14) | 16 (10) | 16 (15) | 15 (13) | 15 (15) | 15 (16) | 16 (12) | 15 (13) |
| Distance to nearest wind turbine (m), mean (SD) | 862 (184) | 636 (254) | 670 (284) | 812 (151) | 834 (266) | 1014 (245) | 605 (160) | 780 (233) |
| Sound pressure level (dB(A)), mean (SD) | 31.4 (2.3) | 38.2 (4.7) | 33.8 (4.5) | 33.2 (1.4) | 34.6 (3.2) | 31.9 (2.3) | 35.0 (2.9) | 33.4 (3.0) |
| Visual angle (degree), mean (SD) | 3.5 (0.9) | 10.8 (3.9) | 8.4 (4.3) | 2.5 (0.4) | 2.7 (1.3) | 3.5 (1.7) | 3.8 (0.8) | 3.5 (1.7) |
| Visibility (% of respondents who could see at least one wind turbine) | 64 | 75 | 67 | 60 | 91 | 88 | 71 | 71 |
| Noise sensitivity (% sensitive) | 54 | 50 | 42 | 59 | 39 | 56 | 48 | 51 |
| Self-rated health (% chronic disease) | 36 | 33 | 67 | 35 | 21 | 26 | 32 | 33 |
| Self-rated sleep (% not good) | 9 | 0 | 0 | 6 | 5 | 4 | 5 | 6 |