Among 185 subjects presenting with lymphocytosis, progressive lymphocytosis occurred in 51 (28%), progressive CLL developed in 28 (15%), and chemotherapy was required in 13 (7%).

• 在185个淋巴细胞增多的研究对象中，51个淋巴细胞增多有进展，占（28%25），28个病人进展为CLL占（15%25），13个病人需要化疗占（7%25）。