Monoclonal B-cell lymphocytosis in blood donors in Turkey

Figures & data

Figure 1. Two-step analysis method for the detection of monoclonal B-cell lymphocytosis, initial panel (B: κ/λ: 2.3; C: κ/λ: 4.14).

Table 1. Patient characteristics.

Age (years) [median (range)]	34 (18–78)
Male	33 (18–65)
Female	37 (18–78)
Age groups (years) (n = 995) [n (%)]
<20	21 (2.1)
20–29	298 (30)
30–39	356 (35.8)
40–49	222 (22.3)
50–59	77 (7.7)
60–69	15 (1.5)
>70	6 (0.6)
Gender (male/female) (n)	705/294
CD5^+/CD19^+ κ/λ [median (range)]	1.25 (0.2–6)
CD5^−/CD19^+ κ/λ [median (range)]	1.2 (0.35–3.66)
Frequency of MBL [n (%)]	18 (1.8)
CD5^−/CD19^+	2 (0.2)
CD5^+/CD19^+	16 (1.6)
Absolute leukocyte count (×10^9/l)	7.5 (3.16–21.22)
Percentage of lymphocytes (%)	29.4 (9.6–63.5)
Absolute lymphocyte count (×10^9/l)	2.2 (0.88–6.5)
MBL (+) cases	2 (1.2–2.7)
MBL (−) cases	2.2 (088–6.5)
Prevalence of MBL [n (%)]	18 (1.8)
<40	11 (1.1)
40–60	6 (0.6)
>60	1 (0.1)

Abbreviations: κ: kappa; λ: lambda ; MBL: monoclonal B-cell lymphocytosis.

Figure 2. Frequency of monoclonal B-cell lymphocytosis among age groups.