Table 2.
Raw Data Summary
| Variable | STAT Category 1 |
STAT Category 2 |
STAT Category 3 |
STAT Category 4 |
STAT Category 5 |
|---|---|---|---|---|---|
| All participants (centers) | |||||
| Number of participants | 73 | 73 | 72 | 73 | 70 |
| Number of operations | 15,441 | 17,994 | 8,989 | 13,375 | 2,707 |
| Average, participant-specific sample size | 211.5 | 246.5 | 124.8 | 183.2 | 38.7 |
| Range, participant-specific sample sizes | 6–1,060 | 9–947 | 3–687 | 3–872 | 1–212 |
| Aggregate mortality rate | 0.55% | 1.7% | 2.6% | 8.0% | 18.4% |
| Median participant-specific mortality rate | 0.23% | 1.41% | 2.40% | 8.33% | 20.78% |
| Range, participant-specific mortality rates | 0%–3.1% | 0%–11.1% | 0%–17.6% | 0%–21.9% | 0%–100% |
| IQR, participant-specific mortality rates | 0.0%–0.9% | 1.0%–2.2% | 1.1%–4.4% | 5.7%–10.9% | 12.0%–28.6% |
| Aggregate average PLOS per patient, days | 5.9 | 9.9 | 12.7 | 19.6 | 33.5 |
| Median participant-specific average PLOS, days | 5.8 | 9.9 | 12.7 | 19.6 | 34.1 |
| Range, participant-specific average PLOS, days | 3.5–9.7 | 4.9–22.9 | 6.0–23.4 | 8.3–46.4 | 12.0–109.0 |
| IQR, participant-specific average PLOS | 5.0–6.7 | 8.1–11.7 | 11.2–14.8 | 16.9–22.8 | 28.5–40.7 |
| Sites with n ≥10 | |||||
| Number of participants | 72 | 72 | 71 | 71 | 52 |
| Number of operations | 15,435 | 17,985 | 8,986 | 13,369 | 2,628 |
| Average, participant-specific sample size | 214.4 | 249.8 | 126.6 | 188.3 | 50.5 |
| Range, participant-specific sample sizes | 18–1060 | 17–947 | 10–687 | 20–872 | 10–212 |
| Aggregate mortality rate | 0.55% | 1.7% | 2.6% | 8.0% | 18.4% |
| Median participant-specific mortality rate | 0.26% | 1.4% | 2.4% | 8.6% | 21.5% |
| Range, participant-specific mortality rates | 0%–3.1% | 0%–6.1% | 0%–17.6% | 0%–21.9% | 4.8%–50% |
| IQR, participant-specific mortality rates | 0%–1.0% | 1.0%–2.2% | 1.1%–4.4% | 6.3%–11.1% | 13.9%–27.9% |
| Aggregate average PLOS per patient (days) | 5.9 | 9.9 | 12.7 | 19.6 | 33.5 |
| Median participant-specific average PLOS, days | 5.8 | 9.9 | 12.8 | 19.8 | 33.5 |
| Range, participant-specific average PLOS, days | 3.5–9.7 | 4.9–22.9 | 6.9–23.4 | 11.9–46.4 | 13.5–84.4 |
| IQR, participant-specific average PLOS | 5.0–6.6 | 8.2–11.7 | 11.2–15.0 | 16.9–22.9 | 28.9–42.7 |
IQR = interquartile range; PLOS = postoperative length of stay; STAT = The Society of Thoracic Surgeons (STS)-European Association for Cardio-Thoracic Surgery (EACTS) Congenital Heart Surgery Mortality Categories.