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. Author manuscript; available in PMC: 2023 Oct 15.
Published in final edited form as: Am J Cardiol. 2022 Aug 24;181:105–112. doi: 10.1016/j.amjcard.2022.06.064

Table 1.

Baseline characteristics of patients referred for Tc-99m-pyrophosphate imaging with abnormal plasma cell testing

Total patients, N 82
Age (years) 75 (68–81)
BMI (kg/m2) 28 (25–30)
Male 72 (88%)
Female 10 (12%)
Black 27 (33%)
Hispanic 8 (10%)
White 42 (51%)
Other/unknown 5 (6%)
eGFR (mL/min/1.73m2) 62.5 ± 24.3
Abnormal FLC ratio/normal IFE 55 (67%)

  • FLC ratio <0.26

 0

  • FLC ratio >1.65 and <3.1

 54 (98%)

  • FLC ratio >3.1

 1 (2%)
Abnormal FLC ratio/abnormal IFE 16 (20%)

  • FLC ratio <0.26

 1(6%)

  • FLC ratio >1.65 and <3.1

 11(69%)

  • FLC ratio >3.1

 4(25%)
Normal FLC ratio/abnormal IFE 11 (13%)

Values are median (interquartile range), n (%), or mean ± standard deviation.

eGFR = estimated glomerular filtration rate; BMI = body mass index; FLC = free light chains; IFE = immunofixation electrophoresis.