Table 1.
Percentile Range (Hospital Means or Hodges–Lehmann Estimates) | |||||||
---|---|---|---|---|---|---|---|
Patient Covariates | Lower Eighth (12.5th) | Lower Quartile (25th) | Median | Upper Quartile (75th) | Upper Eighth (87.5th) | Chi-Square Statistic/DF | p-value |
Age (years) | 75.7 | 75.7 | 75.9 | 76.1 | 76.4 | 0.84311 | .7538 |
Gender (% male) | 41.7 | 42.0 | 42.0 | 42.7 | 42.7 | 0.03734 | 1.0000 |
Probability of 30-day death | 0.0238 | 0.0244 | 0.0260 | 0.0281 | 0.0290 | 0.27678 | 1.0000 |
Predicted procedure time (minutes) | 137.5 | 137.7 | 138.2 | 138.7 | 138.9 | 0.39881 | .9998 |
Emergency admission | 15.7 | 16.0 | 16.7 | 17.0 | 17.0 | 0.11402 | 1.0000 |
Transfer-in | 3.3 | 4.3 | 5.7 | 5.7 | 5.7 | 0.67780 | .9451 |
Comorbidities | |||||||
CHF | 15.7 | 16.3 | 16.7 | 17.0 | 17.3 | 0.14154 | 1.0000 |
Past arrhythmia | 22.0 | 22.3 | 22.7 | 23.0 | 23.7 | 0.11405 | 1.0000 |
Past myocardial infarction | 10.0 | 10.3 | 10.7 | 10.7 | 10.7 | 0.09536 | 1.0000 |
Angina | 3.3 | 3.3 | 3.7 | 4.0 | 5.0 | 0.49806 | .9977 |
Diabetes | 26.0 | 26.3 | 26.3 | 26.7 | 27.0 | 0.03394 | 1.0000 |
Renal dysfunction | 6.0 | 6.0 | 6.3 | 6.7 | 6.7 | 0.09357 | 1.0000 |
COPD | 16.3 | 17.0 | 17.3 | 18.0 | 18.3 | 0.17837 | 1.0000 |
Asthma | 13.0 | 13.0 | 13.3 | 13.7 | 13.7 | 0.10066 | 1.0000 |
Percentile Range (Hospital Means or Hodges–Lehmann Estimates) | |||||||
---|---|---|---|---|---|---|---|
Outcomes | Lower Eighth (12.5th) | Lower Quartile (25th) | Median | Upper Quartile (75th) | Upper Eighth (87.5th) | Chi-Square Statistic/DF | p-value |
Mortality (%) | |||||||
Inpatient | 0.7 | 1.0 | 1.3 | 2.0 | 2.3 | 0.8914 | .6712 |
30-day | 1.3 | 1.7 | 2.3 | 3.0 | 3.3 | 1.2808 | .1049 |
Complications (%) | |||||||
Inpatient | 35.3 | 37.7 | 41.0 | 44.3 | 47.7 | 4.2587 | <.0001 |
30-day | 45.7 | 50.3 | 56.0 | 59.7 | 61.7 | 5.8927 | <.0001 |
Failure-to-rescue (%) | |||||||
Inpatient | 1.6 | 2.3 | 3.8 | 5.0 | 5.7 | 1.0430 | .3948 |
30-day | 2.2 | 2.9 | 4.0 | 5.7 | 6.6 | 1.7040 | .0030 |
Readmissions | |||||||
30-day % | 6.7 | 7.7 | 8.7 | 10.0 | 10.7 | 1.6971 | .0032 |
Length of stay* | 4.3 | 4.4 | 4.6 | 5.0 | 5.2 | 4.5715 | <.0001 |
Patients in ICU (%) | 9.0 | 9.7 | 14.3 | 19.0 | 23.0 | 10.6930 | <.0001 |
Days in ICU, if sent to ICU | 4.7 | 5.0 | 6.2 | 6.7 | 7.1 | 2.0811 | <.0001 |
Total cost ($1,000s; Hodges–Lehmann estimates) | |||||||
In-hospital $ | 10.7 | 11.1 | 11.7 | 12.1 | 12.4 | 5.5274 | <.0001 |
30-day $ | 11.5 | 11.9 | 12.5 | 13.0 | 13.5 | 4.7859 | <.0001 |
Total payment ($1,000s; Hodges–Lehmann estimates) | |||||||
In-hospital $ | 13.0 | 13.4 | 14.2 | 16.2 | 20.0 | 55.6498 | <.0001 |
30-day $ | 13.8 | 13.9 | 14.7 | 17.1 | 20.8 | 49.6518 | <.0001 |
Procedure time (minutes) | 117.8 | 126 | 135.8 | 152.3 | 173.3 | 39.7043 | <.0001 |
Note. *Length of Stay means were calculated using trimmed means, excluding 2.5% of patients from each extreme.