Table 4.
Cross-sectional and retrospective mean waiting times
| Cross-sectional mean waiting time (days) | Retrospective mean waiting time (days) | |||||||||
| Index day | A1 | A2 | B | C | D | A1 | A2 | B | C | D |
| 01/08/2005 | 9 | 46 | 58 | 115 | 461 | 8 | 66 | 72 | 115 | 189 |
| 01/09/2005 | 7 | 42 | 71 | 114 | 414 | - | 80 | 76 | 135 | 185 |
| 01/10/2005 | - | 37 | 49 | 114 | 444 | 7 | 63 | 88 | 149 | 172 |
| 01/11/2005 | 13 | 28 | 45 | 113 | 429 | 7 | 42 | 77 | 169 | 184 |
| 01/12/2005 | - | 27 | 52 | 144 | 457 | 7 | 38 | 67 | 188 | - |
| 01/01/2006 | 7 | 31 | 54 | 110 | 485 | 8 | 60 | 86 | 212 | - |
| 01/02/2006 | - | 17 | 51 | 128 | 520 | 6 | 33 | 81 | 220 | - |
| 01/03/2006 | 4 | 19 | 52 | 74 | 484 | 10 | 25 | 55 | 179 | - |
| 01/04/2006 | 10 | 15 | 51 | 38 | 312 | 12 | 25 | 52 | 169 | - |
| 01/05/2006 | - | 18 | 38 | 46 | 340 | 14 | 29 | 68 | 159 | - |
| 01/06/2006 | - | 18 | 42 | 57 | 368 | 15 | 28 | 62 | 143 | - |
| 01/07/2006 | - | 25 | 38 | 81 | 400 | 13 | 30 | 64 | 195 | - |
| 01/08/2006 | 8 | 26 | 42 | 89 | 419 | 12 | 33 | 61 | 175 | - |
| 01/09/2006 | 11 | 24 | 57 | 101 | 467 | 6 | 35 | 57 | 157 | - |
| 01/10/2006 | - | 22 | 27 | 102 | 462 | 11 | 29 | 73 | 132 | 227 |
| 01/11/2006 | 1 | 22 | 31 | 103 | 490 | 9 | 28 | 68 | 130 | - |
| 01/12/2006 | 5 | 28 | 44 | 100 | 400 | 4 | 25 | 65 | 130 | - |
| 01/01/2007 | 7 | 33 | 48 | 71 | 353 | 8 | 37 | 68 | 142 | - |
| 01/02/2007 | - | 35 | 47 | 79 | 381 | 6 | 32 | 71 | 176 | - |
| 01/03/2007 | 5 | 40 | 54 | 93 | 309 | 3 | 38 | 82 | 162 | - |
| Mean ± SD | 7.2 ± 3.3 | 27.6 ± 8.9 | 48.5 ± 9.9 | 93.6 ± 27.0 | 419.7 ± 61.1 | 8.7 ± 3.3 | 38.8 ± 15.7 | 69.6 ± 10 | 161.8 ± 28.3 | 191.4 ± 20.9 |
| Median | 7 | 26 | 48 | 100 | 424 | 8 | 33 | 68 | 160 | 185 |
| 95% CI | ||||||||||
| From | 5.17 | 23.5 | 42.9 | 80.9 | 391.2 | 7.1 | 31.4 | 65.0 | 149.0 | 165.5 |
| To | 9.33 | 31.8 | 52.2 | 106.3 | 448.3 | 10.3 | 46.1 | 74.3 | 175.1 | 217.3 |
SD: Standard deviation. CI: Confidence interval. Mean waiting times were measured in days as cross sectional indexes, calculated among waiting patients at an index day (cross-sectional indexes), and in admitted patients (retrospective indexes).