Table 1.

Differences between the Baumann and Hartmann scoring methods for common variable immunodeficiency disorders.

	Baumann	Hartmann
Abnormalities scored per	Whole lung	Lobe
Number of values	22	157
Time needed per CT (minutes)	15	30
Origin	Newly designed for CVID as a scoring system for clinical use	Based on the cystic fibrosis-CT scoring method, and designed as a sensitive scoring system for CVID patients for research purposes
Emphysema	Scored together with bullae	Scored as separate entity
Reticulation	The presence and subtype of reticulation (inflammatory, fibrotic, or mixed) are noted	Differentiation between reticulation with or without distortion
Lymphadenopathy	Size of the largest lymph node is measured in mm	Only the presence is scored defined by a short axis diameter ≥ 10 mm
Ground-glass opacities (GGO)	Both the presence and subtype of GGO (inflammatory or fibrotic) are noted	No subtypes of GGO are noted

This table presents the key differences between the Baumann and Hartmann scoring method for computed tomography (CT) scans of patients with common variable immunodeficiency disorders (CVID).