Table 3 Mean waiting times and 95% confidence intervals (CI) for both the retrospective and the prospective group; difference (mean, %) and significance (p) (in min) | Colour priority | Retrospective group | Prospective group | Mean difference (%) | p Value |
| n | Mean (95% CI) | n | Mean (95% CI) |
| Red | 31 | 216 (143 to 289) | 60 | 38 (28 to 48) | 178 (82) | <0.001 |
| Orange | 116 | 213 (170 to 256) | 194 | 119 (105 to 133) | 94 (44) | <0.001 |
| Yellow | 116 | 258 (218 to 298) | 407 | 155 (143 to 167) | 103 (40) | <0.001 |
| Green | 60 | 246 (173 to 317) | 162 | 199 (172 to 226) | 46 (19) | 0.13 |
| All patients | 323 | 235 (210 to 260) | 823 | 146 (137 to 155) | 91 (38) | <0.001 |