Table 1.

Stratification for Coronary Artery Calcification and Emphysema

Severity	Coronary Artery Calcium	Emphysema
None–0	Agatston score of 0	No evidence of emphysema
Mild–1	Agatston score of 1-99	Emphysema that composes 0.5%-5.0% of the lung zone
Moderate–2	Agatston score of 100-299	Emphysema that composes >5% of the lung zone
Severe–3	Agatston score of >300	Advanced destructive emphysema with vascular distortion

Data were derived from¹⁰.