Trends in US EDs for admitted chest pain patients from 2006 to 2016
| 2006–2008 | 2009–2011 | 2012–2014 | 2016 | P value* | |
| No. of admitted†/% | 670 738/18 | 532 583/12.7 | 354 610/7.7 | 202 208/3.9 | <0.0001 |
| Gender (male) (%) | 58.8 | 59.7 | 59.9 | 60.8 | <0.0001 |
| Age (mean) | 45.1 | 46.1 | 47.5 | 47.9 | <0.0001 |
| LOS (mean days) | 1.9 | 1.9 | 1.9 | 2.0 | 0.0105 |
| Costs, $ (mean) | $4718 | $5179 | $5691 | $6325 | <0.0001 |
| Aggregate costs, $† | 3 490 089 682 | 2 984 022 275 | 2 052 415 967 | 1 469 014 044 | <0.0001 |
*Compares the 2006 value with the 2016 value with either χ2 test for categorical variables or t-tests for continuous variables.
†Yearly average across the 3 years for 2006–2008, 2009–2011 and 2012–2014.
LOS, length of stay.