Table 2.

Age-adjusted prevalence of MBL among 254 adult patients with lymphocytosis

Age (years)	N*	Prevalence estimate† (95% CI)
≥18	10/254	3.9 (0.02 to 0.06)
40–49	1/34	2.9 (−0.03 to 0.09)
50–59	1/37	2.7 (0.0 to 8.2)
≥60	8/92	8.7 (2.80 to 14.60)

*Number of patients with MBL/number of all patients in the category.

†Prevalence estimate per 100 persons.

MBL, monoclonal B-cell lymphocytosis.