Table 1.

Characteristics of MGUS patients

IgG
IgA
Training sample
Test sample
n
%
n
%
n
%
553100378100352100
Age at diagnosis, y
    ≤501332484226920
    51-601412683227421
    61-70157281243310931
    71-8912222872311028
Median age, y61 (range, 20-87)62 (range, 23-89)64 (range, 24-93)
Gender
    F259471774717750
    M294532015317550
MC, mg/dL
    ≤1.5377682225924069
    >1.5176321564110831
Light-chain proteinuria
    Negative487883439128192
    Positive6612359268
Polyclonal immunoglobulin levels, g/dL
    Normal459833028019870
    Reduced941776208730
Serum Hb levels, g/dL
    ≥12.5473862987927478
    <12.5 and >10.0771478217722
Period of recruitment
    1976-1985991851329
    1986-19892294145129427
    1996-2004225412566819856
    2005-20067219288
  • Abbreviation: MC, serum monoclonal component; Hb, hemoglobin.