Table 2 Cumulative number of precursor diagnoses over time prior to AL amyloidosis diagnosis.

From: Timing and co-occurrence of symptoms prior to a diagnosis of light chain (AL) amyloidosis

Characteristic

−24 months pre-AL amyloidosis

−6 months per-AL amyloidosis

At AL amyloidosis diagnosis

Number of precursor diagnoses

Mean (SD)

2.9 (3.3)

4.8 (4.1)

6.0 (4.6)

Median (IQR)

2 (0–4)

4 (2–7)

5 (2–9)

Number of organ systems

Mean (SD)

1.9 (1.7)

3.0 (1.9)

3.4 (2.0)

Median (IQR)

2 (0–3)

3 (1–5)

4 (2–5)

  1. SD standard deviation, IQR inter-quartile range.