Table 1 Social characteristics of participants
Responders | Non-responders | p Value | ||
|---|---|---|---|---|
Characteristic | n =946 | n =1886 | Wilcoxon test | Logistic regression |
Townsend deprivation index | 2.85 ± 4.15 (2.00, −6.86-16.22) | 4.04 ± 4.27 (3.87, −5.31-16.22) | 1 × 10−12 | 2 × 10−7 |
Unemployment (% of those ≥16 yr and economically active) | 10.30 ± 4.41 (9.39, 0.00-30.59) | 11.49 ± 4.82 (10.90, 1.26-30.59) | 4 × 10−10 | 0.005 |
Blue-collar workers (% of all households) | 18.53 ± 7.69 (17.81, 0.00-50.00) | 19.38 ± 7.80 (18.85, 0.00-50.00) | 0.004 | 0.0002 |
White-collar workers (% of all households) | 10.67 ± 7.52 (8.83, 0.00-50.09) | 10.16 ± 7.07 (8.33, 0.00-38.10) | 0.06 | 0.70 |
Non-car ownership (% of all households) | 14.95 ± 11.33 (11.73, 0.00-74.81) | 17.54 ± 11.47 (15.52, 0.00-69.42) | 2 × 10−11 | 0.24 |
Farmers (% of all households) | 1.69 ± 3.20 (0.42, 0.00-40.00) | 1.38 ± 2.71 (0.18, 0.00-21.05) | 2 × 10−5 | 0.85 |
Household overcrowding (% of all households) | 1.50 ± 0.53 (1.43, 0.00-3.20) | 1.65 ± 0.55 (1.59, 0.00-3.53) | 6 × 10−12 | 0.02 |
Non-home ownership (% of all households) | 36.67 ± 17.94 (32.99, 4.17-85.72) | 41.22 ± 18.49 (40.14, 3.36-85.72) | 7 × 10−10 | 0.24 |
Income (€/yr) | 27784 ± 6677 (27298, 5902–67313) | 26636 ± 6449 (25294, 5902–67509) | 8 × 10−6 | 0.64 |
Access rate to high school graduate (% of all households) | 37.88 ± 11.27 (36.73, 9.76-79.53) | 37.19 ± 11.39 (35.31, 13.33-79.22) | 0.04 | 0.10 |
Population density (inhabitants/km2) | 3114 ± 5870 (1026, 7–49362) | 3557 ± 5445 (1468, 2–49362) | 5 × 10−5 | 0.45 |
Urban units index | 3.92 ± 3.09 (4, 0–8) | 4.36 ± 3.06 (6, 0–8) | 0.0002 | 0.83 |
Europeans (% of all patients) | 84% | 73% | 3 × 10−9 | 9 × 10−5 |