Table 2.
Socioeconomic status in the recruitment regions
| Zip code | Inhabitants per km2 | One-person household with no children [%] | Multi-person household with children [%] | Household income (< €1 T) [%] | Household income (< €4 T) [%] | Rate of unemployment [%] | |
|---|---|---|---|---|---|---|---|
| 0 | Mean (SD) | 1129.80 (810.62) | 33.52 (12.01) | 23.34 (1,21) | 18.90 (0.5) | 9.18 (0.91) | 15.82 (1.81) |
| SE | 209.30 | 3.10 | 0.31 | 0.13 | 0.24 | 0.47 | |
| Minimum | 171.0 | 19.3 | 21.9 | 18.5 | 8.0 | 13.7 | |
| Maximum | 1788.0 | 43.0 | 24.3 | 19.5 | 10.0 | 17.5 | |
| P value (¥/†) | …/n.s. | …/n.s. | …/n.s. | …/n.s. | …/n.s. | …/n.s. | |
| 2 | Mean (SD) | 211.60 (130.42) | 36.74 (2.11) | 32.27 (1.54) | 13.33 (1.81) | 16.46 (2.37) | 9.82 (3.37) |
| SE | 41.24 | 0.67 | 0.49 | 0.57 | 0.75 | 1.06 | |
| Minimum | 146.0 | 33.3 | 30.8 | 9.9 | 15.0 | 6.8 | |
| Maximum | 459.0 | 38.5 | 33.8 | 14.3 | 21.0 | 14.7 | |
| P value (¥/†) | <0.0001/n.s. | n.s./n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.0001/n.s. | |
| 3 | Mean (SD) | 475.80 (377.99) | 35.60 (4.84) | 34.71 (4.93) | 11.64 (1.76) | 17.85 (1.82) | 8.39 (2.18) |
| SE | 69.01 | 0.88 | 0.89 | 0.32 | 0.33 | 0.39 | |
| Minimum | 109.0 | 32.1 | 26.0 | 8.8 | 16.0 | 6.4 | |
| Maximum | 1104.0 | 44.8 | 39.3 | 14.4 | 21.0 | 12.3 | |
| P value (¥/†) | <0.01/n.s. | n.s./n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.0001/n.s. | |
| 4 | Mean (SD) | 636.50 (327.17) | 34.26 (1.90) | 33.09 (0.43) | 9.41 (1.55) | 21.36 (2.25) | 9.63 (1.00) |
| SE | 71.39 | 0.41 | 0.43 | 0.33 | 0.49 | 0.21 | |
| Minimum | 210.0 | 29.5 | 30.1 | 7.8 | 17.0 | 8.5 | |
| Maximum | 1469.0 | 39.6 | 37.6 | 12.9 | 24.0 | 11.6 | |
| P value (¥/†) | n.s./n.s. | n.s./n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.0001/n.s. | |
| 5 | Mean (SD) | 418.49 (204.16) | 33.88 (1.98) | 33.30 (1.41) | 10.35 (1.13) | 19.85 (2.12) | 9.58 (1.13) |
| SE | 31.13 | 0.30 | 0.21 | 0.17 | 0.32 | 0.17 | |
| Minimum | 195.0 | 30.8 | 27.9 | 8.1 | 15.0 | 7.4 | |
| Maximum | 1175. | 43.9 | 38.1 | 13.8 | 24.0 | 11.3 | |
| P value (¥/†) | n.s./n.s. | n.s./<0.01 | <0.0001/<0.0001 | <0.0001/<0.01 | <0.0001/<0.0001 | <0.0001/<0.001 | |
| 6 | Mean (SD) | 810.20 (323.78) | 36.22 (0.62) | 31.28 (1.52) | 9.20 (1.56) | 23.14 (2.81) | 8.60 (0) |
| SE | 144.80 | 0.28 | 0.68 | 0.70 | 1.26 | 0.10 | |
| Minimum | 231.0 | 35.1 | 30.6 | 8.5 | 18.0 | 8.6 | |
| Maximum | 955.0 | 36.5 | 34.0 | 12.0 | 24.0 | 8.7 | |
| P value (¥/†) | n.s./n.s. | n.s./n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.01/n.s. | |
| 7/8a | Mean (SD) | 560.30 (433.38) | 37.56 (4.22) | 31.44 (5.27) | 11.10 (2.91) | 18.31 (3.61) | 6.75 (2.91) |
| SE | 96.90 | 0.94 | 1.18 | 0.65 | 0.80 | 0.65 | |
| Minimum | 134.0 | 32.4 | 21.9 | 7.6 | 8.0 | 2.8 | |
| Maximum | 1375.0 | 43.9 | 38.7 | 19.5 | 23.0 | 11.0 | |
| P value (¥/†) | <0.01/n.s. | n.s./n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.0001/n.s. | <0.0001/n.s. | |
aBecause of the close location, these regions were combined for the calculations
¥Wilcoxon-Mann-Whitney test, U-Test, P < 0.05
†Chi-squared test, P < 0.05