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Table 1 Values of 3-S and 4-S COMPERA 2.0 risk score versions

From: The original and two new derivative versions of the COMPERA 2.0 risk assessment model: useful tools for guiding balloon pulmonary angioplasty

3-S versions

Low risk

Intermediate risk

High risk

Original 3-S version

1.0–1.4

1.5–2.4

2.5–3.0

Modified 3-S version

1.0

1.1–2.0

2.1–3.0

Hybrid 3-S version

1.0–1.4

1.5–2.0

2.1–3.0

4-S versions

Low risk

InterM-low risk

InterM-high risk

High risk

Original 4-S version

1.0–1.4

1.5–2.4

2.5–3.4

3.5–4.0

Modified 4-S version

1.0

1.1–2.0

2.1–3.0

3.1–4.0

Hybrid 4-S version

1.0–1.4

1.5–2.4

2.5–3.0

3.1–4.0

  1. 3-S, 3-Stratum; 4-S, 4-Stratum