Table 1.
Characteristics of the population included in the study.
| Demographic patient data | Total (N=5,235) | Madrid (N=3,391) | Barcelona (N=1,844) | p value |
|---|---|---|---|---|
| Age (years); median (IQR) | 68.0 (54.0-80.0) | 69.0 [54.0- 81.0] | 67.0 [54.0- 77.0] | <0.01 |
| Gender female; n (%) | 2,308 (44.1) | 1,505 (44.4) | 803 (43.5) | 0.581 |
| Foreigners; n (%) | 1,044 (20.0) | 828 (24.5) | 216 (11.7) | <0.01 |
| Place of birth; n (%) | <0.01 | |||
| Spain | 4,182 (80.0) | 2,556 (75.5) | 1,626 (88.3) | |
| Latin America countries | 840 (16.1) | 686 (20.3) | 154 (8.4) | |
| Western countries except Spain | 106 (2.0) | 74 (2.2) | 32 (1.7) | |
| Arabic countries | 45 (0.9) | 34 (1.0) | 11 (0.6) | |
| Asian countries | 39 (0.7) | 24 (0.7) | 15 (0.8) | |
| Sub-Saharan African countries | 14 (0.3) | 10 (0.3) | 4 (0.2) | |
| Origin; n (%) | <0.01 | |||
| Occidental | 4,288 (82.1) | 2,630 (77.7) | 1,658 (90.0) | |
| Latin America | 840 (16.1) | 686 (20.3) | 154 (8.4) | |
| Other | 98 (1.9) | 68 (2.0) | 30 (1.6) | |
| Data related to ZIP code area where patients live | ||||
| Average per capita income of ZIP code areas in €/person; median (IQR) | 11,797 (8932.5-14268) | 10,673.50 [8,909- 11,950] | 12,451 [11,213- 14,861] | <0.01 |
| Percentile of average per capita income of ZIP code area; median (IQR) | 0.71 (0.17-0.93) | 0.49 [0.17, 0.74] | 0.80 [0.60, 0.95] | <0.01 |
| Population density (people/km2); median (IQR) | 1,242.75 (414.5-2,364.37) | 1,035.26 [773.2-1,645.4] | 1,496.12 [107.4-3,742.4] | |
| Percentile of population density of ZIP code area median (IQR) | 0.71 (0.17-0.93) | 0.49 [0.17-0.74] | 0.8 [0.6-0.95] | |
| Hospital care data | ||||
| Hospital Experience Index; median (IQR) | 1,,305 (772-1801.5) | 1,638.50 [1,047.00- 2,055.50] | 826.00 [607.00- 1,221.00] | <0.01 |
| Emergency Department Saturation Index; median (IQR) | 37.56 (16.15-67.3) | 54.54 [37.56- 86.15] | 16.15 [7.13- 23.30] | <0.01 |
| Primary outcomes | ||||
| Critical care admission; n (%) | 323 (6.2) | 165 (4.9) | 158 (8.6) | <0.01 |
| In-hospital mortality; n (%) | 832 (15.9) | 575 (17.0) | 257 (13.9) | <0.01 |