Extracellular Volume Fraction Based on Cardiac Magnetic Resonance T1 Mapping: An Effective Way to Evaluate Cardiac Injury Caused by Cardiac Amyloidosis in Patients with Multiple Myeloma

Table 1

Clinical and laboratory characteristics of participants.

Characteristics	Amyloid group	Nonamyloid group
	()	()
Age			0.668
Sex			0.091
Male	7 (13.7%)	20 (39.2%)
Female	12 (23.5%)	12 (23.5%)
Medical history
Hypertension	7 (13.7%)	9 (17.6%)	0.639
Diabetes	3 (5.9%)	2 (3.9%)	0.348
Hyperlipidemia	0 (0%)	2 (3.9%)	0.523
COPD	2 (3.9%)	3 (5.9%)	0.966
Hepatitis B	0 (0%)	3 (5.9%)	0.285
Heavy chain type			0.82
IgG	5 (9.8%)	8 (15.7%)
IgA	7 (13.7%)	9 (17.6%)
IgM	0	1 (2%)
Light chain type			0.952
λ light chain	9 (18.8%)	15 (31.3%)
κ light chain	9 (18.8%)	15 (31.3%)
DS staging			0.488
1A	1 (2%)	0
2A	2 (4%)	4 (7.8%)
3A	12 (23.5%)	22 (43.1%)
3B	6 (7.8%)	6 (11.8%)
ISS staging			0.419
2A	10 (19.6%)	22 (43.1%)
3A	5 (9.8%)	7 (13.7%)
3B	4 (7.8%)	3 (5.9%)