TABLE 1.
Characteristics of Olmsted County, Minnesota, Residents by Decile of Σ FLCa
| Characteristic | All residents (N=15,859) | Top decile (n=1581) | Lower 9 deciles (n=14,278) | P value |
|---|---|---|---|---|
| Age (y) | 63 (50-109) | 73 (50-109) | 62 (50-101) | <.001 |
| Male, No. (%) | 7106 (44.8) | 782 (49.5) | 6324 (44.3) | <.001 |
| Creatinine (mg/dL)b | 1.0 (0.4-14.2) | 1.2 (0.4-14.2) | 1.0 (0.4-10.8) | <.001 |
| No. (%) of individuals by creatinine level | ||||
| ≥1.5 mg/dL | 597 (4.5) | 355 (25.4) | 232 (2.0) | <.001 |
| ≥2.0 mg/dL | 173 (1.3) | 141 (10.1) | 32 (0.3) | <.001 |
| Σ FLC (mg/dL) | 2.8 (0.1-48.2) | 5.8 (4.7-48.2) | 2.7 (0.1-4.7) | <.001 |
| κ FLC (mg/dL) | 1.3 (0.01-20.5) | 2.8 (1.1-20.5) | 1.2 (0.01-2.8) | <.001 |
| λ FLC (mg/dL) | 1.5 (0.04-28.2) | 3.11 (1.8-28.2) | 1.4 (0.04-3.6) | <.001 |
| rFLC | 0.8 (0.01-40.9) | 0.9 (0.3-1.6) | 0.8 (0.01-40.9) | <.001 |
a
Data are presented as median (range) unless otherwise specified. Σ FLC = κ and λ free light chain sum; FLC = free light chain; rFLC = κ to λ free light chain ratio.
b
Data available for only 13,087 patients. (To convert to μmol/L, multiply by 88.4).